SPECIFICATION SPECIFICATION

& SPECIAL FEATURES & SPECIAL FEATURES

SS SERIES : S4S SS SERIES : S6S

S4S and S6S engines belong to SS series. They received good reviews by worldwide customers S4S and S6S engines belong to SS series. They received good reviews by worldwide customers
due to low-noise and low-emission engines which are perfect qualities for urban areas. due to low-noise and low-emission engines which are perfect qualities for urban areas.

S4S S4S-DT S6S S6S-DT

Type 4-cycle water-cooled diesel engine Type 4-cycle water-cooled diesel engine

Aspiration Natural-aspirated Turbocharged Aspiration Natural-aspirated Turbocharged

Number of cylinders 4 Number of cylinders 6
Bore and stroke mm 94×120 Bore and stroke mm 94×120
Displacement cc 3331 Displacement cc 4496
Combustion system Swirl chamber Direct injection Combustion system Direct Injection
Maximum gross output kW/rpm 47 / 2500 55 / 2500 Maximum gross output kW/rpm 57.4 / 2500 67.7 / 2300
Fuel / Fuel system Diesel fuel (ASTM No.2-D) / Distributor Type Fuel / Fuel system Diesel fuel (ASTM No.2-D) / Distributor Type
Charging alternator V-A 12-50 Charging alternator V-A 12-50 24-50

Starting system V - kW 12-2.2 Starting system V - kW 12-3.0 24-5.0

Engine oil capacity ℓ 10 Engine oil capacity ℓ 12.5 17.5
Dry weight (1500/1800 rpm. spec.) kg 245 250 Dry weight (1500/1800 rpm. spec.) kg 345 360
Flywheel SAE #11.5 Flywheel SAE #11.5
Flywheel Housing SAE #3 Flywheel Housing SAE #3

Performance Curve Dimensions (Unit: mm) Performance Curve Dimensions (Unit: mm)
ISO 3046 WITHOUT FAN
ISO 3046 WITHOUT FAN After 30-50hrs breaking in
After 30-50hrs breaking in

TORQUE
[N.m]
TORQUE
[N.m]

220 300 1043.9

210
622
200 558.1 780.5 250
190 328 467
180
284.4 420.5
200

50
60

8-M10X1.5
S4S

S6S
50 12-M10X1.5
φ396.7

40

φ500
DEPTH 21 DEPTH 19
12-M10X1.5 8-M10X1.5
DEPTH 21 DEPTH 19 40

30
264

262
714.4

30 333.3
)

748.2
+0.089

+0.097

+0.089 )

)
0

+0.097
0

0
φ352.42H8(

20
φ409.58H8(

352.42H8(
20

409.58H8(
FUEL CONSUMPTION
FUEL CONSUMPTION

10 2
428.6
.38
240
OUT PUT [kW]

278.4
333
280

OUT PUT [kW]

280

[g / kWh]
260
[g / kWh]

270 240
260 φ4 220
250 28
240 9 .62 1000 1500 2000 2500 6.4 239
1000 1500 2000 2500 3000 6.4 239 ENGINE SPEED [min-1] 9
ENGINE SPEED [min-1] 39.6 39.6 478
478

622 1043.9
ISO 3046 WITHOUT FAN ISO 3046 WITHOUT FAN 328 467
After 30-50hrs breaking in 568 780.5 After 30-50hrs breaking in
284.4 420.5
TORQUE
[N.m]

TORQUE
[N.m]
250
240 300
230 280
220 260
210 240

70 12-M10X1.5 8-M10X1.5
50

φ500
DEPTH 21 DEPTH 19
S4S-DT

S6S-DT
φ440

60
12-M10X1.5 8-M10X1.5

854.6
40 DEPTH 21 DEPTH 19
821.3

262
50 333.3
8
262

+0.089 )

)
)

+0.097
)
+0.097
+0.089

0
40
0
0

352.42H8(
30

409.58H8(
φ409.58H8(
φ352.42H8(

30 2
428.6

278.4
FUEL CONSUMPTION

FUEL CONSUMPTION
20
240

20
OUT PUT [kW]

270 290
OUT PUT [kW]

38 6.4
[g / kWh]

[g / kWh]
260 φ 270 239
250 3. 42 250 9
240 9 33 8. 39.6 478
230 6.4 239 62
1000 1500 2000 2500 3000 39.6 1000 1500 2000 2500
ENGINE SPEED [min-1] 478 ENGINE SPEED [min-1]