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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.

Type 4-cycle water-cooled diesel engine
Aspiration Natural-aspirated
Number of cylinders 6
Bore and stroke mm 94x120
Displacement cc 4496
Combustion system Direct Injection
Maximum gross output kW/min-1 57.4/2500
Fuel /Fuel system Diesel fuel (ASTM No.2-D) / Distributor Type
Charging alternator V-A 12-50
Starting system V-kW 12-3.0
Engine oil capacity liter 12.5
Dry weight(1500/1800 min-1.spec) kg 345
Flywheel SAE#11.5
Flywheel Housing SAE #3
  Performance Curve Dimensions(Unit:mm)
S6S Performance Curve
S6S Dimensions(Unit:mm)