INSTALLATION INSTRUCTIONS 1

MSD Ultra 6AL Plus Ignition Control

PN 6523 (Red), PN 65233 (Black)
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Parts Included:
1 - Main Harness Download the "MSD Ultra 6AL" app
1 - MSD Ultra 6AL Plus
1 - Parts Bag from Google Play or the App Store.
1 - Mag Pick-up Harness, PN 8860

Note: The Ultra 6AL Plus has not been CARB certified, therefore it is not
legal for California use.
Important: When installing the Ultra 6AL Plus Series Ignition, timing
will be affected, reset to your engine's specifications.
Note: The MSD Ultra 6AL Plus uses its own custom app for monitoring and
feature editing. The unit can also interface with the MSD View Software.

For certain applications, the MSD Ultra 6AL Plus can be used as an
ignition amplifier with limiter functions and no more than 10 degrees of step retard.
OPERATION AND FEATURES
DIGITAL OPERATION
The Ultra 6AL Plus Series continues to use a high speed controller that can make extremely quick
compensations to the output voltage, multiple spark series, timing and rpm limits while maintaining
precise timing and accurate rev limiting. The circuits and controller of the MSD have been thoroughly
filtered to create protection against Electro Magnetic Interference (EMI).

CAPACITIVE DISCHARGE
The Ultra 6AL Plus Series feature a capacitive discharge ignition design. The majority of stock ignition
systems are inductive ignitions. In an inductive ignition, the coil must store and step up the voltage
to maximum strength in between each firing. At higher rpm, since there is less time to charge the coil
to full capacity, the voltage falls short of reaching maximum energy which results in a loss of power
or top end miss.

The MSD Ignition features a capacitor which is quickly charged with 540 - 555 volts and stores it until
the ignition is triggered. With the CD design, the voltage sent to the coil positive terminal is always
at full power even at high rpm.

MULTIPLE SPARKS
The MSD produces full power multiple sparks for each firing of a plug. The number
of multiple sparks that occur decreases as rpm increases, however the spark series
always lasts for 18° of crankshaft rotation. Above 3,000 rpm there is simply not enough
“time” to fire the spark plug more than once, so there is only one powerful spark.
Note: Solid Core spark plug wires cannot be used with an MSD Ignition.
Note: Do not use digital or dial back timing lights.

PROTECTION
The Ultra 6AL Plus Series have a built in reverse polarity protection circuit. This will protect the ignition
in the event that the main battery leads are reversed.
WARNING: During installation, disconnect the battery cables. When disconnecting the battery
always remove the Negative cable first and install it last.
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2 INSTALLATION INSTRUCTIONS

GENERAL INFORMATION
BATTERY
The Ultra 6AL Plus will operate on any negative ground, 12 volt electrical system with a distributor.
The Ultra 6AL Plus can be used with 16 volt batteries and can withstand a permanent voltage up to
28 volts (double battery systems). The ignition will deliver a full voltage with a supply of 7 - 28 volts.
If your application does not use an alternator, allow at least 15 amp/hour for every half hour of
operation . The MSD uses about .8 Amps for every 1000 rpm. If the engine is cranked with the same
battery or other accessories such as an electric fuel or water pump are used, the amp/hour rating
should be higher.

COILS
The Ultra 6AL Plus ignition can be used with most stock coils and aftermarket coils designed to replace
the stock coils. The line of MSD Blaster Coils are great for street and mild racing. For extended high
rpm operation and maximum output, the Blaster HVC PN 8252 or HVC II PN 8253 are recommended.
For more information on recommended coils, check with our Customer Service Department at (866)
464-6553.

TACHOMETERS
The Ultra 6AL Plus features a Gray Tach Output wire that provides a trigger signal for tachometers,
shift light or other add-on rpm activated devices. The Tach Output wire produces a 12 volt square
wave signal with a 22% duty cycle.

Some vehicles with factory tachometers may require a Tach Adapter to operate with the MSD. For
more information on Tachometers and MSD Tach Adapters, see the Tachometer Section on page 6.
If your GM vehicle has an in-line filter it may cause the tach to drop to zero on acceleration. If this
occurs, bypass the filter.

SPARK PLUGS AND WIRES

Spark plug wires are very important to the operation of your ignition system. A good quality, helically
wound wire and proper routing are required to get the best performance from your ignition, such as the
MSD 8.5mm Super Conductor Wire. Helically wound wires provide a good path for the spark to follow
while keeping Electro Magnetic Interference (EMI) to a minimum. Excessive EMI, such as the amount
that solid core wires produce, will interfere with the operation of the MSD. Solid Core spark plug
wires cannot be used with an MSD Ignition.

Routing: Correct routing of the plug wires is also important to performance. Wires should be routed
away from sharp edges and engine heat sources. If there are two wires that are next to each other in
the engine’s firing order, the wires should be routed away from each other to avoid inducing a spark
into the other wire. For example, in a Chevy V8, the firing order is 1-8-4-3-6-5-7-2. The #5 and #7
cylinders are next to each other in the engine and in the firing order. If the voltage from the #5 wire is
induced into #7 wire, detonation could occur and cause engine damage.
To add more heat protection to your plug wires, MSD offers Pro-Heat Guard, PN 3411. This is a glass
woven and silicone coated protective sleeve that you slide over your plug wires. For extra protection
of the spark plug boots, MSD offers Pro Boot Guard, PN 3412.

Spark Plugs: Choosing the correct spark plug design COMPRESSION SPARK PLUG GAP
and heat range is important when trying to get the best Up to 10.5:1 0.050" - 0.060"
performance possible. Since there are so many engine 10.5:1 - 13.0:1 0.040" - 0.050"
combinations and manufacturers, MSD does not recommend Above 13.0:1 0.035" - 0.045"
which plug or gap is exactly right for your application.
It is recommended to follow the engine builder or Table 1. Spark Plug Gap
manufacturer’s specification for spark plugs. With that, you
can then experiment with the plug gap by opening them in 0.005" increments, then testing until the
best performance is obtained. (See Table 1.) These examples are just starting points to get you going
in the right direction. Every application is different and should be tested and tuned.

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INSTALLATION INSTRUCTIONS 3

Welding: If you are welding on your vehicle, to avoid the chance of damage, always disconnect both
Heavy Power cables of the MSD (You should also disconnect the tach ground wire too).

Distributor Cap and Rotor: It is recommended to install a new distributor cap and rotor when
installing the MSD Ignition Control. The cap should be clean inside and out especially the terminals and
rotor tip. On vehicles with smaller caps, it is possible for the air inside the cap to become electrically
charged causing crossfire which can result in misfire. This can be prevented by drilling a couple vent
holes in the cap. The holes should be placed between the terminals, at rotor height and face away
from the intake. If your environment demands it, place a small piece of screen over the hole to act
as a filter.

MOUNTING
The MSD Ultra 6AL Plus must be mounted in a sturdy, dry location and not exposed to extreme
heat. It is not recommended to mount the unit in an enclosed area such as the glove box. It should
be mounted using the included rubber isolators to limit excessive vibration and to provide access to
the connector tab for harness removal. The unit should not be immersed or subjected to direct spray
from a power washer. When you find a suitable location to mount the unit, make sure the wires of
the ignition reach their connections. Hold the Ignition in place and mark the location of the mounting
holes. Use a 3/16" bit to drill holes for the mounting hardware.

WIRING

GENERAL WIRING INFORMATION

Wire Length: All of the wires of the MSD Ignition may be shortened as long as quality connectors are used
or soldered in place. To lengthen the wires, use one size bigger gauge wire (12 gauge for the power leads and
16 gauge for the other wires) with the proper connections. All connections must be soldered and sealed.
Grounds: A poor ground connection can cause many frustrating problems. When a wire
is specified to ground, it should be connected to the battery negative terminal, engine
block or chassis. There should always be a ground strap between the engine and the
chassis. Always securely connect the ground wire to a clean, paint free metal surface.
Ballast Resistor: If your vehicle has a ballast resistor in-line with the coil wiring, it is recommended
to bypass it. See more information under the heading "Ballast Resistor & Engine Run-On"
Routing Wires: The MSD wires should be routed away from direct heat sources such as exhaust
manifolds and headers and any sharp edges. The trigger wires should be routed separate from
the other wires and spark plug wires. It is best if they are routed along a ground plane such as
the block or firewall which creates an electrical shield. The magnetic pickup wires should always
be routed separately and should be twisted together to help reduce extraneous interference.
Cylinder Select: The Ultra 6AL Plus is set for operation on 8-cylinder engines by default. See section
'Cylinder Select' on page five.

Pink - Step Retard:

Single stage retard step is activated when 12 volts are applied to the Pink wire. The retard will remain
until the 12 volts are removed (OR active when RPM is above the RPM value/setting). Connect to a
nitrous solenoid activation wire or switch on the shifter. Retard is adjustable from 0 to 9.9 degrees in
1/10-degree increments.

Blue - 2-Step:
The Launch Rev Limiter low rpm limit is active when 12V is applied. Rev limit returns to the high limit
when 12V is removed.

Lt Blue - Burnout Rev Limit:

Burnout Rev Limit is active when 12V is applied. This overrides other rev limits. It is recommended
to have this wire switched from an outside source such as the crew chief before the burnout.

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4 INSTALLATION INSTRUCTIONS

The Ultra 6AL Plus uses a main wiring harness that connects to the ignition through a sealed and
locked connection.
POWER LEADS The two larger 14 gauge wires are for direct battery voltage to the ignition.
The ignition is load protected from reverse battery connections.
This wire connects directly to the battery positive (+) terminal or a
Heavy Red 4&14 Battery positive battery junction such as the starter solenoid. Note: Do not
Power connect to the alternator
9 &19 Battery Connects to a good ground, either at the battery negative (-)
Heavy Black Ground terminal or to the engine.
Black 18 Ref GND Reference ground (Optional)
Red 5 Ignition Switched 12V (Ignition)
This terminal is the ONLY wire that makes electrical contact with
Black 2 Coil (-) the negative coil terminal.
terminal is the ONLY wire that makes electrical contact with
Orange 3 Coil (+) This
the positive coil terminal.
TRIGGER The Points circuit (White), Magnetic Pickup circuit (Green/Violet) and the Hall Effect Input
WIRES (Red/Black/Green) can be used to trigger the MSD Ignition. Only one should be used at a
time.
Connect to breaker points, electronic ignition amplifier output or
to the Yellow wire of an MSD Timing Accessory. The Magnetic
White 17 Points Pickup connector (Violet/Green) and the Hall Effect input are
not used.
Magnetic Pickup. Plugs directly into an MSD distributor or crank
Violet 7 Magnetic trigger. It will also connect to aftermarket pickups. The Violet wire
Green 8 Pickup is positive (+) and the Green wire is negative (-). The White wire
and Hall Effect input sensor are not used.
CRANK PICK UP SENSOR
5 Hall Effect input - Red supplies +12V to the sensor, black
Red ground and green is the Hall Effect signal input. The
20 Sensor supplies
Crank
Green White wire and Mag Pickup connector are not used with this
Black 18 configuration.
ACCESSORIES
Output tach wire which connects to the tachometer trigger wire or
Gray 15 Tach other rpm activated device.
Step
Pink 1 When 12 volts are supplied, the Step Retard is activated.
Retard
When 12 volts are applied the Burnout Rev Limit is active. This
Lt. Blue 12 Burnout
Rev Limit overrides other rev limits. It is recommended to have this wire
switched from an outside source.
Two- When 12 volts are supplied, the Launch Rev Limiter RPM value is
Dark Blue 11
Step active.
MSD CAN (FOR USE WITH THE POWER GRID)
Black 6 CAN LO
Gray 13 Reference Ground (Yellow Sleeve)
Red 16 CAN HI
Table 2. Wiring Table
PRESTART CHECK LIST
The only wires connected to the coil terminals are the MSD Orange to coil positive and Black to coil
negative.
• The small Red wire of the MSD is connected to a switched 12 volt source.
• The MSD power leads are connected directly to the battery positive and negative terminals.
• The battery is connected and fully charged if not using an alternator.
• The engine is equipped with at least one ground strap to the chassis.
• Default 8-Cylinder setting can be changed to 4 or 6-cylinder using the "Mode" rotary switch.
(See Cylinder Select)
• Download the MSD Ultra 6AL App on your device.
- Select your Ultra 6AL Plus to pair device.

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INSTALLATION INSTRUCTIONS 5

CYLINDER SELECT MODE SWITCH SELECTION CHART

The 6AL Plus is set at the factory for MODE
Max Engine RPM / Number of Cylinders Selected /
use on 8-cylinder engines. If you are Switch
Start Retard Selected / Rev Limit
installing on a 4 or 6 cylinder engine, Position
you will use the Mode switch setting 0 Max Engine RPM / 8 Cyl, 0° Start Retard / Rev Limit Set
to select cylinders. (Figure 1) See the 1 Max Engine RPM / 8 Cyl, 10° Start Retard / Rev Limit Set
Table 3 for available preconfigured 2 Max Engine RPM / 8 Cyl, 20° Start Retard / Rev Limit Set
selections. 3 Max Engine RPM / 6 Cyl, 0° Start Retard / Rev Limit Set
MODE SWITCH SELECTION 4 Max Engine RPM / 6 Cyl, 10° Start Retard / Rev Limit Set
CHART 5 Max Engine RPM / 6 Cyl, 20° Start Retard / Rev Limit Set
The Mode switch sets the Cylinder 6 Max Engine RPM / 4 Cyl, 0° Start Retard / Rev Limit Set
count, a start retard, and Rev Limit. 7 Max Engine RPM / 4 Cyl, 10° Start Retard / Rev Limit Set
Table 3 lists detailed 'Mode' settings. 8 Max Engine RPM / 8 Cyl, 0° Start Retard / Rev Limit Set
9 Max Engine RPM / 8 Cyl, 0° Start Retard / Rev Limit Set
When the Mode switch is set to 0, 8
or 9, the unit defaults to 8 cylinder, 0° Table 3. Switch Mode Chart
start retard operation.

When the Mode switch is set to positions 1-7, the unit will be set to the MAP
corresponding setting in the Mode Switch Selection Chart. PORT

To see the current settings in the app when the 'Rotary Dials' are used as
the Main Timing Source:
1. Select the Data Tab.
MODE SWITCH
2. Select the add icon .
4. Add 'Start Retard', 'Cylinder Select' and 'Timing Source'
Note: Each Monitor item needs to be added separately. (See Data
Tab on page 11.)

The Data Tab will now display the Mode switch details.

MAP INPUT: Figure 1. Mode Switch &

A Manifold Absolute Pressure sensor is integral to the unit. It uses 1/4” MAP Port
Camozzi fitting and is rated at 4 Bar. (Figure 1)
Using it can advance your timing under engine vacuum and retard it under boost. It is recommended
that you use it, but not required unless you are using forced induction.

TROUBLESHOOTING
Every MSD Ignition undergoes numerous quality control checks including a four hour burn-in test. If
you experience a problem with your MSD, our research has shown that the majority of problems are
due to improper installation or poor connections.
The Troubleshooting section has several checks and tests you can perform to ensure proper installation
and operation of the MSD. If you have any questions concerning your MSD, call our Customer Support
Department at (888) 464-6553, Monday - Friday 7am - 4pm and Saturdays from 7am - 1pm MST.

LED LED COLOR CONDITION

The LED monitors several operating
conditions. When the ignition is RED Coil Shorted/Converter Shorted/Overtemp
functioning properly, the LED will ORANGE Key ON, Engine OFF (No RPM)
illuminate green above idle speeds. GREEN Engine ON (RPM)
If there is a problem with the ignition Table 4. LED Status
system the LED color will determine
status, see Table 4 and the following
details for troubleshooting in this section.
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6 INSTALLATION INSTRUCTIONS

TACHOMETER COMPATIBILITY LIST

AFTERMARKET TACHOMETER WHITE WIRE TRIGGER MAGNETIC TRIGGER CONNECTOR
AUTOGAGE 8910 8920
AUTOMETER NONE NONE
FORD MOTORSPORTS NONE NONE
MALLORY NONE NONE
MOROSO NONE NONE
STEWARD WARNER (Voltage triggered) 8910 8920
S.W. & BI TORX NONE NONE
SUN 8910 8920
VDO NONE NONE
AMC (JEEP) 8910 8920
CHRYSLER 8910 8920
FORD (Voltage triggered) 8910 8920
GENERAL MOTORS Bypass In-line Filter Bypass In-line filter
IMPORTS 8910 8920
Note: On the list above, the trigger wire on the tachometers that are marked NONE may be connected
directly to the Gray Tach Output Wire on the MSD 6AL Plus Ignition.
Table 5. Common Tachometer and Adapters
TACH/FUEL ADAPTERS
If your tachometer does not operate correctly or if you experience a no-run situation with your foreign
vehicle you probably need an MSD Tach Adapter. Table 5 lists common tachometers and if an Adapter
is necessary.
TACH ADAPTERS
There are two types of Tach Adapters:
PN 8920: If you are using the Magnetic Pickup connector (Green and Violet wires) to trigger the
MSD, you will need the PN 8920.
PN 8910: If your tachometer was triggered from the coil negative terminal (voltage trigger) and you
are using the White wire to trigger the MSD you will need the PN 8910.

NO-RUN ON FOREIGN VEHICLES

Some foreign vehicles with fuel injection systems may require an MSD Tach/Fuel Injection Adapter
to run with an MSD Ultra 6 Series Ignition. This is because many of these systems use the same
trigger source to operate the MSD, the tachometer and the fuel injection. This results in a voltage
signal that is too low to accurately trigger the fuel injection. To fix this, an MSD Tach Adapter, PN
8910, will remedy the problem on the majority of vehicles. If the PN 8910 does not fix the problem,
the PN 8910-EIS will be required.
Note: Toyota models and Ford Probes will require the PN 8910EIS Adapter.

INOPERATIVE TACHOMETERS SWITCHED 12V

If your tachometer fails to operate with the MSD MSD RED
installed you may need an MSD Tach Adapter.
Before getting an Adapter, try connecting your MSD WHITE
tachometer trigger wire to the Gray tach wire of
the MSD. This output produces a 12 volt, square FROM POINTS
CHRYSLER DUAL
wave (see 'Tachometers' on page 2). If the tach still BALLAST RESISTOR
OR AMPLIFIER
does not operate, you will need a Tach Adapter.
Figure 2 Wiring the Dual Ballast Resistor
BALLAST RESISTOR
If you have a current trigger tach (originally coil positive) and use the White wire of the MSD, you can
purchase a Chrysler Dual Ballast Resistor (used from 1973-1976) and wire it as shown in Figure 2.

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INSTALLATION INSTRUCTIONS 7

ENGINE RUN-ON
If your engine continues to run even when the EARLY GM VEHICLES
ATTACH DIODE TO TERMINAL "4"
ignition is turned Off, you are experiencing engine
Run-On. This usually only occurs on older vehicles
with an external voltage regulator. Because the 1
2
3
4

MSD receives power directly from the battery, 1A-100V DIODE

it does not require much current to keep the unit FORD
VEHICLES TO
energized. If you are experiencing run-on, it is due to ATTACH DIODE TO SPLICE HERE CHARGING
a small amount of voltage going through the charging TERMINAL "1" LIGHT
lamp indicator and feeding the small Red wire even if Figure 3 Installing the Diode to a Ford or GM Vehicle
the key is turned off. GM 2-WIRE ALTERNATORS

WIRE
Early Ford and GM: To solve the Run-On problem, a Diode is LOOM
supplied with the MSD in the parts bag. By installing this Diode SMALLER OF THE
TWO WIRES
in-line of the wire that goes to the Charging indicator, the voltage is
kept from entering the MSD. Figure 3 shows the proper installation DIODE
for early Ford and GM vehicles.
Note: Diodes are used to allow voltage to flow only one way. Make
sure the Diode is installed facing the proper direction (as
shown in Figure 3).

Ford: Install the Diode in-line to the wire going to the “1” terminal.
GM: Install the Diode in-line to the wire going to terminal #4. Figure 4 Installing the Diode to a
GM: 1973 - 1983 with Delcotron Alternators. 1973-1983 GM Vehicle
GM: Delcotron Alternators use an internal voltage MSD
regulator. Install the Diode in-line on the smallest SMALL RED
SWITCHED 12V
wire exiting the alternator (Figure 4). It is usually a
JUMPER
Brown wire. WIRE
TO GROUND
Run-on Fix with a Dual Ballast resistor on
other applications: On other applications where
engine Run-On is experienced, a dual ballast
resistor can be installed in-line to the MSD's CHRYSLER DUAL
BALLAST RESISTOR
small Red wire (Figure 5). This dual ballast
resistor will keep voltage from leaking through to Figure 5 Wiring the Dual Ballast
the MSD unit. Resistor to fix Run-On

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8 INSTALLATION INSTRUCTIONS

MSD ULTRA 6AL APP

The MSD App controls all the features of the MSD Ultra 6AL Plus
controller using your device's bluetooth connection. The information
that follows will briefly explain the features in the app.

HOME
The Home screen (Figure 6) displays the Engine Speed with Burnout,
Rev and Launch RPMs. Also displayed are the Battery voltage and
Step Retard and current product installed.

The Burnout, Rev Limit markers and Step Retard features can be
updated right from the home screen. Simply tap on the feature and
use the slider to update the RPM or Degree of Retard. (Figure 7)

DIAGNOSTICS
The Ultra MSD notifies the user if there are any alerts with the LED
on the MSD and in app alerts. ALERTS STATUS LED
Tap the 'Diagnostics' icon for
the Alerts window. (Figure 8) Coil Shorted RED
ALERTS Converter Shorted RED
Read Alerts: Alerts are listed Coil Shorted to Battery RED
from current and previous
Over Temperature RED
occurrences and remain
until they are resolved and Coil Open GREEN
erased. (Table 6) Open Load GREEN
Figure 6. Home Screen Converter Low GREEN
Clear Alerts: This will erase
all alerts. Converter Fault GREEN
EEPROM Error GREEN
SETTINGS Table 6. MSD Ultra Alert List
In the settings screen are the
adjustable parameters. See Figures 9
& 10.

Figure 7. Slider adjustment REV LIMITER

Launch Rev Limiter: This is the
maximum RPM the engine will be
allowed to reach when 12 volts is
applied to the dark blue wire. Adjustable
from 2000 to 12000 RPM.

Launch Rev Limit Latched

When the Launch Rev Limit Latch
is OFF, the Launch RPM (2 step) will
activate any time the RPM is at or above
Figure 8. Alerts Screen the set Launch RPM. When this setting
is ON, the engine rpm must be below 7/8 Figure 9 Setting Screen
of the launch limit setting while 12 volts is applied to the Dark Blue wire
to engage the Launch Limiter. The Launch RPM cannot become active unless the RPM falls below
7/8 of the set RPM.
For example: If set at 4000 RPM and the launch wire is activated, the launch limiter can only
come on if the RPM falls below 3500. This prevents accidental activation while at high RPM
(such as a faulty launch switch activating or activating it with the clutch during the run). This
allows clutch cars to wire the Dark Blue wire directly to the clutch switch without the need to
use a relay. If Latching is disabled, the Launch Rev Limiter will be engaged anytime the Dark
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INSTALLATION INSTRUCTIONS 9

Blue wire receives 12 volts (such as during each shift) regardless

of engine rpm.
Burn Out Rev Limiter: Activated when 12 volts are applied to the Light
Blue wire. It overrides all other rev limiters and is typically connected
to the line lock solenoid. It is adjustable from 2000 to 12000 RPM.

Maximum Rev Limiter: This is the over rev limit designed to protect
the engine from damage. It is adjustable from 2000 to 12000 rpm.

STEP RETARD
Step Retard (Deg): Activated when 12 volts are applied to the Pink
wire (nitrous input). Ignition timing Adjustable from 0 to 30 degrees.
(Figure 12)

On Ramp Time (Sec): This is the time to reach full or total retard.
Adjustable from 0 to 5 seconds.
Example: If 10 degrees of total retard is set with 1 second of ramp
time, the MSD will retard 1 degree every 0.1 seconds until the full
10 degrees of timing is pulled. A '0' (zero) setting will cause an
immediate timing retard of 10 degrees.

Off Delay (Sec): The time the Total Retard remains in effect after the
“Step Retard” is deactivated. Adjustable from 0 to 5 seconds. This
will also delay the “Off Ramp Time” from starting - meaning that it is
additive with respect to the Off-Ramp Time.

Off Ramp Time (Sec): This will slowly remove the effect of the Total
Retard - effectively ramping timing back into the motor instead of
adding it instantaneously. Timing will start ramping back in after the
“Off Delay” has expired. Adjustable from 0 to 5 seconds.

Engine (RPM): This is the minimum engine speed that must be met
to retard the timing. Adjustable from 0 to 10000 RPM.

Max Timing Ref: This is the advance that is set with a locked
distributor or crank trigger. The system controller will use this as its
base for all timing marks and can never advance past the pre-set
point. It is critical that this advance is set properly.
Note: When using EFI the max timing reference and the main timing
must be the same number. Figure 10. Settings Screen

Max Retard: The max amount of total Retard that can be set.

MAIN TIMING SOURCE

Select how timing will be managed.
Switches: To activate the Rotary Dials, highlight and tap
'Update' to activate the use of the switches on the MSD.

3D Chart: For 3D graph tuning, select '3D Chart', tap 'Update' then select 3D Tuning to view and
edit the graph.

2D Plot: Selecting '2D Plot' and 'Update' will allow setting both
'MainTiming' and 'Launch Timing' under the 'Retard Tab'.

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10 INSTALLATION INSTRUCTIONS

MAIN TIMING MODE

Normal: Defaults to the base timing.

Locked @ 15 Degrees: This sets and locks timing at 15° BTDC when
selected and submitted.
Using a timing light, users must verify that actual engine timing is
15-Degrees Before Top Dead
Center when this feature is enabled. Otherwise, the accuracy of all
other commanded timing values
will be suspect.

UPDATE
Sends updated values/parameters to the connected unit.

RESET DEFAULT VALUES

Resets the application values

RETARD TAB
Under the Retard tab will be the Main Timing and Launch timing plots
to set Timing. (Figure 11)

Main Timing Plot: Sets the base Ignition Timing vs. Engine RPM.
Timing will not advance past the Maximum Timing Ref (set in the
Settings tab).
Timing will not retard more than -30 degrees from the Max Timing Ref
(set in the Settings tab). Figure 11. Retard Tab & Menu
Launch Timing Plot: This plot allows for retarding the ignition timing
based on the Time from Launch.
The Time from Launch will reset to '0 - Zero' during Launch Rev Limiter
activation or '0 - Zero (Engine Off)' RPM. The first point in the plot will
control timing offset during the Launch Rev limiter.

To edit the 2D chart, select the menu icon found in the upper left
hand corner of the app.
LOAD...: Load a previously saved plot.
SAVE AS...: Save the current plot to Load at another time.
EDIT PLOT: Update the plotting points for the desired timing
curve.
CANCEL: Closes the Action screen and returns to the plot.

DATA TAB
A custom graph, digital readout or gauge can be created from a selection
of parameters (Table 5) added by using the plus icon . (Figure 12)
Each gauge or digital readout can be moved up or down, custom colors
can be selected and display types can be changed as well as units,
when applicable, by using the Edit button.

NOTE: A maximum of 12 parameters can be added for display.

NOTE: As the MSD temperature reaches an unsafe operating

temperature, the spark energy decreases then cuts off when the unit
reaches its maximum operating temperature threshold of 140oC/284oF. Figure 12. Data Screen

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INSTALLATION INSTRUCTIONS 11

3D TUNING
Under the 3D Tuning tab will be the MAP vs RPM graph. (Figure 13)
To edit the 3D chart, select the menu icon found in the upper left
hand corner of the app.

LOAD: Load a previously saved plot.

SAVE AS: Save the current plot to Load at another time.
EDIT TIMING TABLE: Update the plotting points for the desired
timing curve. (Figure 14)
MAP: The MAP is adjustable from 0
to 400
RPM: Adjustable from 0 to 10000.
Cell: Adjustable from 0 to 60
CANCEL: Closes the Action screen
and returns to the plot.

Pressure reading can be toggled from KPa to PSIA.

Note: When 'EDIT PLOT' is selected, the menu Updates to "VIEW
CHART". Select 'VIEW CHART" to return to the Plot screen.

Figure 13. 3D Data Screen

Figure 14. Timing Table

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12 INSTALLATION INSTRUCTIONS

PAIRING MOBILE DEVICE TO THE MSD

When pairing your mobile device to the MSD Ultra 6AL Plus,
make sure there is power to the ignition and the LEDs are on.

Before starting the App:

1. Press the Green reset button until the Wi-Fi LED blinks
Red twice, then turns off (approximately 5 seconds)
2. Press the button again. Figure 15 Alert Box (Apple)
3. The Wi-Fi LED will flash Blue/Orange/Red and is now in
pairing mode.
4. Open the App and it will pair with the MSD after permissions
are granted, see permissions below for Apple and Android

FOR APPLE USERS:

Select 'OK' on the alert box to connect the Ultra 6AL Plus.
(Figure 15)

FOR ANDROID USERS: Figure 16 Alert Box (Android)

Select ‘OK’ on the Alert Box to enable the bluetooth services.
(Figure 16)

Select 'Allow' in the location box to detect the MSD bluetooth

(Figure 17). This will enable Bluetooth communication with your
device.
Once paired, the MSD App Home Screen (Figure 18) will ap-
pear and settings can be modified for your application.

MSD APP CONNECTION Figure 17 Location Box

The MSD app can pair more than one unit, so confirming one or
an additional unit will ensure it is added to your profile.

To connect a different MSD, such as the PN 6423, the App will

need to be restarted otherwise an error will be displayed. (Fig-
ure 19)

If a 'Security check failed' window appears, proceed to follow

instructions to reset and reconnect to the unit.
MISSES AND INTERMITTENT
PROBLEMS Figure 18 Home Screen
Experience at the races has shown that if your engine is
experiencing a miss or hesitation at higher rpm, it is usually not
directly the ignition. Most probable causes include faulty wiring, a
coil or plug wire failure, arcing from the cap or boot plug to ground
or spark ionization inside the cap. Several items to inspect are:
• Always inspect the plug wires at the cap and at the plug for a tight
connection and visually inspect for cuts, abrasions or burns.
• Inspect the Primary Coil Wire connections. Because the MSD is
a Capacitive Discharge ignition and it receives a direct 12 volt Figure 19 App Error
source from the battery, there will not be any voltage at the Coil
Positive (+) terminal even with the key turned On. During cranking or while the engine is running, very
high voltage will be present and no test equipment should be connected.
WARNING: Do not touch the coil terminals during cranking or while the engine is running.
• Make sure that the battery is fully charged and the connections are clean and tight. If you are not
running an alternator this is an imperative check. Although these Ignition modules can run full
power down to 7V battery – big advantage vs other Ignition modules.
MSD • WWW.MSDPERFORMANCE.COM • (915) 857-5200 • 1-888-258-3835
INSTALLATION INSTRUCTIONS 13

• Is the engine running lean? Inspect the spark plugs and complete fuel system.
• Inspect all wiring connections for corrosion or damage. Remember to always use proper connections
followed by soldering and seal the connections completely.
If everything checks positive, use the following procedure to WHITE WIRE TRIGGER
test the ignition for spark. MSD also offers an Ignition Tester, PN
8998 or PN 89981. This tool allows you to check your complete
ignition system while it is in the car as well as the operation of
WHITE
rpm limits, activated switches and shift lights.

CHECKING FOR SPARK

If triggering the ignition with the White or Green wire:
If you are using the white wire (points or electronic amplifier) of
the MSD to trigger the ignition, follow these steps (Figure 20): GROUND
1. Make sure the ignition switch is in the “Off” position.
2. Remove the coil wire from the distributor cap and set the Figure 20 Checking for Spark
terminal approximately 1/2" from a good ground. with the White Wire
3. Disconnect the MSD White trigger or Green wire from the
distributor points or the ignition amplifier. MAGNETIC WIRE TRIGGER
4. Turn the ignition to the On position. Do Not Crank the Engine.
5. Tap the White or Green wire to ground several times. Each GREEN
time you pull the wire from ground, a spark should jump from
the coil wire to ground.
If spark is present, the ignition is working properly. If there is
no spark skip to step 6. VIOLET
JUMPER WIRE

Magnetic Pickup trigger: Figure 21 Checking for Spark

1. Make sure the ignition switch is in the “Off” position. with the Mag Pickup
2. Remove the coil wire from the distributor cap and set the
terminal approximately 1/2" from ground.
3. Disconnect the MSD magnetic pickup wires from the distributor.
4. Turn the ignition to the On position. Do not crank the engine.
5. With a small jumper wire, short the MSD’s Green and Violet magnetic pickup wires together several
times (Figure 21). Each time you break this short, a spark should jump from the coil wire to ground.
If spark is present, the ignition is working properly. If there is no spark skip to step 6.
6. If there is no spark:
A. Inspect all of the wiring.
B. Substitute another coil and repeat the test. If there is now spark, the coil is at fault.
C. If there is still no spark, check to make sure there are 12 volts on the small Red wire from the
MSD when the key is in the On position. If 12 volts are not present, find another switched 12
volt source and repeat the test.
D. If, after following the test procedures and inspecting all of the wiring, there is still no spark, the
MSD Ignition is in need of repair. See the Warranty and Service section for information.

MSD • WWW.MSDPERFORMANCE.COM • (915) 857-5200 • 1-888-258-3835

14 INSTALLATION INSTRUCTIONS
The following wiring diagrams illustrate numerous installations on different vehicles and applications. If you experience
difficulties when installing your MSD, contact our Customer Support Department at (866) 464-6553, Monday - Friday 7am
- 4pm and Saturdays from 7am - 1pm MST or e-mail us at: msdtech@msdperformance.com
MSD SYSTEMS Installing to an MSD Distributor/Crank Trigger
HEAVY RED
FROM IGNITION KEY TO BATTERY MAP PORT
RED HEAVY BLACK
(ORIGINAL COIL WIRE) TO BATTERY

WHITE
(NOT USED)

BLACK ORANGE

VIOLET GRAY - TACH OUTPUT

GREEN
MAGNETIC DISTRIBUTOR WITH
GREEN MAGNETIC PICKUP
PICKUP
MSD CAN
PN 8860 VIOLET
HARNESS

PINK - STEP RETARD

DK BLUE - LAUNCH
LT. BLUE - BURNOUT
BLACK - REF GROUND
(OPTIONAL) MSD CRANK MSD CRANK
TRIGGER WHEEL

GM IGNITIONS Wiring a Dual Connector Coil.

BOTH WHITE
FACTORY HARNESS WIRES WHITE HEAVY RED
(CUT FROM COIL) TO BATTERY MAP PORT
RED HEAVY BLACK
TO BATTERY
BOTH PINK
WIRES

BLACK (COIL -)
ORANGE (COIL +)

BOTH WHITE
WIRES BOTH PINK
WIRES

GRAY - TACH OUTPUT

MAGNETIC
PICKUP
(NOT USED)

MSD CAN NOTE: Cut and splice the two pink wires (coil
CRANK positive) together and connect to the
(NOT USED) orange wire of MSD. Cut and splice the
NOTE: MSD offers a direct PINK - STEP RETARD two white wires (coil negative) together
DK BLUE - LAUNCH
plug in harness, PN LT. BLUE - BURNOUT and connect to the white of MSD. If the
BLACK - REF GROUND vehicle is not equipped with a factory
8876, for this coil. (OPTIONAL)
tach, there will be only one white wire.

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INSTALLATION INSTRUCTIONS 15

GM IGNITIONS Wiring the 1996 and up single connector coil without harness.

WIRES
FACTORY HARNESS B AND C
WHITE HEAVY RED
(CUT FROM COIL) TO BATTERY MAP PORT
RED HEAVY BLACK
TO BATTERY
WIRE A
(PINK)

WIRES
B AND C BLACK (COIL -)

ORANGE
(COIL +)
WIRE A
(PINK)

GRAY - TACH OUTPUT

MAGNETIC
PICKUP
(NOT USED)
NOTE: MSD offers a direct plug in harness,
MSD CAN
PN 8877, that makes this a splice
PINK - STEP RETARD free installation.
DK BLUE - LAUNCH CRANK
LT. BLUE - BURNOUT (NOT USED) NOTE: The coil connector is labeled A-B-C.
BLACK - REF GROUND
(OPTIONAL) The wire in the A port is positive
(pink). The wires in B and C are
coil negative wires, color will vary
by application.

GM IGNITIONS Wiring with an MSD Wiring Harness.

HARNESS PN 8877 FACTORY HARNESS
(UNPLUGGED FROM COIL)

HEAVY RED
ORANGE

TO BATTERY MAP PORT

BLACK

WHITE

HEAVY BLACK
TO BATTERY
RED

ORANGE BLACK
(COIL +) (COIL -)

COIL

GRAY - TACH OUTPUT

Harness PN 8876 - Dual Connector Coil. MAGNETIC PICKUP
Harness PN 8877 - 1996-on GM Vehicles. (NOT USED)

MSD CAN

PINK - STEP RETARD CRANK

DK BLUE - LAUNCH (NOT USED)
LT. BLUE - BURNOUT
BLACK - REF GROUND
(OPTIONAL)

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16 INSTALLATION INSTRUCTIONS

GM IGNITIONS GM Large Cap HEI Distributors

There are three different large cap HEI distributors. To identify which
of the following diagrams fit your specific application, remove the
distributor cap and rotor and locate the ignition module at the base
of the distributor. Count the number of terminals on both ends of the
module and follow the corresponding diagram. GM used 4, 5, and
7-pin modules in these distributors.
NOTE: Some 5-pin models may experience a hesitation or stall on
deceleration. If this occurs, contact MSD Tech Line for the
required bolt-in diode to correct the problem. MSD Tech Line
(888) 464-6553.

GM IGNITIONS Wiring an HEI 4-pin Module (Magnetic Pickup Trigger).

REMOVE MODULE INSTALL HARNESS
NOTE: The GM Ignition Module and
condenser are removed and
replaced with the supplied PN GROMMET
CONDENSER
8861 Harness.

KEY WHITE GM-CABLE

CONNECTOR JUMPER HARNESS GM MODULE
WIRE CLAMPS

HEAVY RED RED

OR PINK
WIRE FROM HEAVY RED
CAR WIRING WHITE TO BATTERY MAP PORT
HARNESS (NOT USED) HEAVY BLACK
WHITE TO BATTERY
COVER W/TAPE

PN 8861 HARNESS MAGNETIC

GREEN (-) PICKUP

VIOLET (+)
ORANGE (COIL +) TO B+
BLACK (COIL -) TO C-
TO ENGINE GROUND
GRAY - TACH OUTPUT

PINK - STEP RETARD

DK BLUE - LAUNCH
LT. BLUE - BURNOUT MSD CAN
BLACK - REF GROUND CRANK
(OPTIONAL) (NOT USED)

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INSTALLATION INSTRUCTIONS 17

GM IGNITIONS Wiring an HEI 5 or 7-pin Module (Amplifier Trigger).

W
HI
TE
JU
NOTE: Some 5-pin models may
RE M experience a hesitation or stall
D PE
JU R
M on deceleration. If this occurs,
PE W
R HI contact MSD Tech Line for the
TE
RE * required bolt-in diode to correct
DISTRIBUTOR D*
CONNECTOR
the problem. MSD Tech Line
(888) 464-6553.

*WHITE- Connects to Brown and TACH.

TO TACH PINK *RED - Connects to 12V and Pink.
HEAVY PINK BLACK
HEAVY RED MAP PORT
OR RED WIRE TO BATTERY
FROM VEHICLE BROWN HEAVY BLACK
WIRING TO BATTERY
HARNESS
MAGNETIC PICKUP
(NOT USED)

ORANGE (COIL +) TO B+
BLACK (COIL -) TO C-

TO ENGINE GROUND
GRAY - TACH OUTPUT

PINK - STEP RETARD MSD CAN

DK BLUE - LAUNCH
LT. BLUE - BURNOUT CRANK
BLACK - REF GROUND (NOT USED)
(OPTIONAL)

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18 INSTALLATION INSTRUCTIONS

FORD IGNITIONS Wiring a Ford DuraSpark using White

RED
Wire Trigger.
FORD COIL
CONNECTOR

GREEN RED
RED HEAVY RED
TO BATTERY MAP PORT
HEAVY BLACK
TO BATTERY

WHITE
WHITE

BLACK ORANGE

GRAY - TACH OUTPUT

MAGNETIC PICKUP
(NOT USED)

MSD CAN

PINK - STEP RETARD CRANK

DK BLUE - LAUNCH (NOT USED)
LT. BLUE - BURNOUT
BLACK - REF GROUND
(OPTIONAL)

FORD IGNITIONS Wiring a Ford DuraSpark using Magnetic Pickup Trigger.

FORD COIL
CONNECTOR
RED HEAVY RED
GREEN TO BATTERY MAP PORT
RED
HEAVY BLACK
TO BATTERY
COVER
WITH TAPE
NOT
USED
WHITE
(NOT USED)

BLACK ORANGE

GRAY - TACH OUTPUT

MSD CAN
MAGNETIC PICKUP
PINK - STEP RETARD
DK BLUE - LAUNCH
LT. BLUE - BURNOUT PN 8860 FORD
BLACK - REF GROUND HARNESS DISTRIBUTOR
(OPTIONAL)
CRANK
(NOT USED) VIOLET (+) GREEN (-)

NOTE: MSD OFFERS A HARNESS, PN BLACK

+ ORANGE
-
8869 TO CONNECT THE MAGNETIC (NOT USED)
VIOLET
PICKUP CONNECTOR TO THE FORD
DISTRIBUTOR CONNECTOR-
DURASPARK CONNECTOR. DISCONNECT FROM ORIGINAL HARNESS

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INSTALLATION INSTRUCTIONS 19

FORD IGNITIONS Wiring a Ford TFI with Harness, PN 8874.

MSD HARNESS PN 8874
FACTOR HARNESS
(UNPLUGGED FROM COIL)

ORANGE HEAVY RED

ORANGE
BLACK TO BATTERY MAP PORT

BLACK

WHITE
HEAVY BLACK

RED
TO BATTERY

ORANGE BLACK

MAP PORT

COIL GRAY - TACH OUTPUT

MAGNETIC
NOTE: If not using the TFI Harness, refer PICKUP
(NOT USED)
to the DuraSpark wiring diagram MSD CAN
on page 14. CRANK
PINK - STEP RETARD (NOT USED)
DK BLUE - LAUNCH
LT. BLUE - BURNOUT
BLACK - REF GROUND
(OPTIONAL)

CHRYSLER IGNITIONS Wiring a Chrysler Electronic Ignition using Magnetic Pickup Trigger.

RED HEAVY RED

FROM ORIGINAL TO BATTERY MAP PORT
COIL TERMINAL HEAVY BLACK
COVER TO BATTERY
WITH
TAPE

WHITE
(NOT USED)

ORANGE BLACK

GRAY - TACH OUTPUT

PINK - STEP RETARD MSD CAN MAGNETIC PICKUP

DK BLUE - LAUNCH GREEN (-)
LT. BLUE - BURNOUT
BLACK - REF GROUND
(OPTIONAL) VIOLET (+) DISTRIBUTOR

CRANK PN 8860
(NOT USED) HARNESS

VIOLET (+) GREEN (-)

BLACK (M-)

ORANGE (M+)

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20 INSTALLATION INSTRUCTIONS

CHRYSLER IGNITIONS Wiring a Late Model Dodge with 2-pin connector.

FROM IGNITION KEY RED

ORIGINAL COIL WIRE
HEAVY RED
TO BATTERY MAP PORT
FROM IGNITION AMPLIFIER WHITE HEAVY BLACK
ORIGINAL COIL WIRE TO BATTERY
COIL

GREEN/
ORANGE ORANGE (TO COIL +)

BLACK/GRAY BLACK (TO COIL -)

OR GRAY

NOTE: Original wiring must be cut.

MSD offers two direct plug-in
GRAY - TACH OUTPUT
harnesses; PN 8889 for '90-'97
MAGNETIC
and PN 8884 for '98-'03. PICKUP
(NOT USED)

MSD CAN
CRANK
(NOT USED)
PINK - STEP RETARD
DK BLUE - LAUNCH
LT. BLUE - BURNOUT
BLACK - REF GROUND
(OPTIONAL)

MSD SYSTEMS Wiring a Complete Dual MSD Ignition Setup.

HEAVY RED
TO BATTERY MAP PORT
HEAVY BLACK
WHITE TO BATTERY
(NOT USED)

ORANGE
AUTOMATIC COIL
SELECTOR BLACK
PN 8210

GRAY - TACH OUTPUT

GREEN (-)

VIOLET (+)

CRANK
RED (NOT USED)
TO SWITCHED PINK - STEP RETARD
12 VOLTS DK BLUE - LAUNCH MSD CAN
LT. BLUE - BURNOUT
SPDT SWITCH BLACK - REF GND (OPTIONAL)
RED
HEAVY RED
TO BATTERY
HEAVY BLACK
WHITE TO BATTERY
(NOT USED)

ORANGE
DUAL
MAGNETIC
PICKUP BLACK
DISTRIBUTOR
GRAY - TACH OUTPUT
VIOLET (+)
GREEN (-)

CRANK
MAG (NOT USED)
MAG
MSD CAN
MAG MAG
PINK - STEP RETARD
HARNESS PN 8860 DK BLUE - LAUNCH
LT. BLUE - BURNOUT
HARNESS PN 8860 TO DISTRIBUTOR BLACK - REF GND (OPTIONAL)

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INSTALLATION INSTRUCTIONS 21

GENERAL IMPORT WIRING

AMPLIFIER
NOTE: Remove the coil terminal wires. The negative
wire connects to MSD White. The positive
wire connects to MSD Red. The MSD Orange
connects to the coil positive terminal, Black
connects to the coil negative terminal.
ORIGINAL COIL +
WIRE

HEAVY RED
RED TO BATTERY MAP PORT
ORANGE HEAVY BLACK
TO BATTERY
(TO COIL +)

ORIGINAL COIL - BLACK

WIRE (TO COIL -)

WHITE

GRAY - TACH OUTPUT

MAGNETIC
MSD CAN PICKUP
(NOT USED)
PINK - STEP RETARD
DK BLUE - LAUNCH CRANK
LT. BLUE - BURNOUT (NOT USED)
BLACK - REF GROUND
(OPTIONAL)

AFTERMARKET COMPONENTS Wiring a Mallory Unilite or 9000 Series using Points Trigger.

MALLORY
9000 SERIES
DISTRIBUTOR
W/MALLORY
UNILITE MODULE

BROWN TO 12V
TO GROUND
RED RED IGNITION KEY

HEAVY RED
TO BATTERY MAP PORT
HEAVY BLACK
GREEN WHITE TO BATTERY

ORANGE

BLACK

GRAY - TACH OUTPUT

MAGNETIC
MSD CAN PICKUP
PINK - STEP RETARD (NOT USED)
DK BLUE - LAUNCH CRANK
LT. BLUE - BURNOUT (NOT USED)
BLACK - REF GROUND
(OPTIONAL)

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22 INSTALLATION INSTRUCTIONS

AFTERMARKET COMPONENTS Wiring a Mallory 9000 Series using Magnetic Pickup.

FROM IGNITION KEY RED

(ORGINAL COIL WIRE)
HEAVY RED
TO BATTERY
WHITE HEAVY BLACK MAP PORT
TO BATTERY

BLACK ORANGE

GRAY - TACH OUTPUT

VIOLET (+)

GREEN (-)
MALLORY
MSD CAN DISTRIBUTOR

PINK - STEP RETARD

DK BLUE - LAUNCH
LT. BLUE - BURNOUT
BLACK - REF GROUND
(OPTIONAL) CRANK GREEN (-) BLACK/ORANGE
(NOT USED)
VIOLET (+) BLACK/GREEN
PN 8860 HARNESS

AFTERMARKET COMPONENTS Wiring to a Pertronix Ignitor Kit.

DISTRIBUTOR
WITH TO 12V
PERTRONIX
RED IGNITION KEY

HEAVY RED
RED TO BATTERY
HEAVY BLACK MAP PORT
BLACK WHITE TO BATTERY

ORANGE

BLACK

MSD CAN
GRAY - TACH OUTPUT

PINK - STEP RETARD MAGNETIC

DK BLUE - LAUNCH PICKUP
LT. BLUE - BURNOUT (NOT USED)
BLACK - REF GROUND CRANK
(OPTIONAL) (NOT USED)

If you did not find a schematic to match your application, or if you need assistance,
please contact MSD Tech at (888) 464-6553.

MSD • WWW.MSDPERFORMANCE.COM • (915) 857-5200 • 1-888-258-3835

INSTALLATION INSTRUCTIONS 23

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 TECH NOTES
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Service
In case of malfunction, this MSD component will be repaired free of charge according to the terms of the warranty.
When returning MSD components for warranty service, Proof of Purchase must be supplied for verification. After
the warranty period has expired, repair service is based on a minimum and maximum fee.
All returns must have a Return Material Authorization (RMA) number issued to them before
being returned. To obtain an RMA number please contact MSD Customer Service at 1 (888) MSD-7859 or visit
our website at www.msdperformance.com/rma to automatically obtain a number and shipping information.
When returning the unit for repair, leave all wires at the length in which you have them installed. Be sure to include
a detailed account of any problems experienced, and what components and accessories are installed on the vehicle.
The repaired unit will be returned as soon as possible using Ground shipping methods (ground shipping is covered
by warranty). For more information, call MSD at (888) 464-6553. MSD technicians are available from Monday -
Friday 7am - 4pm and Saturdays from 7am - 1pm MST

Limited Warranty
MSD warrants this product to be free from defects in material and workmanship under its intended normal use*,
when properly installed and purchased from an authorized MSD dealer, for a period of one year from the date of
the original purchase. This warranty is void for any products purchased through auction websites. If found to be
defective as mentioned above, it will be repaired or replaced at the option of MSD. Any item that is covered under
this warranty will be returned free of charge using Ground shipping methods.
This shall constitute the sole remedy of the purchaser and the sole liability of MSD. To the extent permitted by
law, the foregoing is exclusive and in lieu of all other warranties or representation whether expressed or implied,
including any implied warranty of merchantability or fitness. In no event shall MSD or its suppliers be liable for special
or consequential damages.
*Intended normal use means that this item is being used as was originally intended and for the original application
as sold by MSD. Any modifications to this item or if it is used on an application other than what MSD markets the
product, the warranty will be void. It is the sole responsibility of the customer to determine that this item will work
for the application they are intending. MSD will accept no liability for custom applications.

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AUTOTRONIC CONTROLS CORPORATION • 1490
© 2022 MSD
HENRY LLC
BRENNAN DR., EL PASO, TEXAS 79936 • (915) 857-5200 • FAX (915) 857-3344
FRM36858 11/23