Allison World Transmission

Automatic Models
B 400/8 400R
up to 295 ghp (220 kW)
for bus applications

Specifications
B 4OOR
Generalrating

Rated input speed (minimum-maximum)......... ......... ................2000-2800 rpm

Mounting

Torque converter

Stall torque ratio..........................TC 41'l-2.8;TC 413-2.4;f C 415-2.4;f C 417-2.2;TC 418-2.0;TC 419-2.0;TC 421-1.8
Lockup clutch with torsional damper......... ...................1nte9ra1/standard (available all ranges)

Gearing

Range Ratios*
First.............. ..............3.49:1
Second......... ..............1.86:1 Available in
Third............. ..............1.41:1 4' 5' or6+Peed
Fourth........... ..............1.00:1
Sixth ............. ..............0.65:1
...............5.03:1
Ratio coverage
Fonrvard (5
*Gear ratios
speed) .....4.65:1
do not include torque converter multiplication.

Engine-driven power takeoff provision - left or right side - optional

Optional power takeoff units, multiple ratio/ratings... ...............constant-drive or clutched-drive

Oilsystem

Heat exchanger type ........Oi| to water, direct-mount or remote-mount available

Size B 4OOR B 4OOPR

without PTO drive with PTO drive
Length (FW housing to output flange face) .29.7 in (754 mm)...... .................33.9 in (861 mm)
Depth (centerline to lowest point)............. ....11.0 in (279 mm) .11.0 in (279 mm)

*Weight includes output flange/yoke and engine adaptation.

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