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Position: Engine»Diesel Engine»generatorset engine

YC4A/4D (24-64kW) Series


Enhanced fuel injection pump improves fuel consumption

Yuchai sealing technology in piston ring and valve oil seal reduces the lube oil consumption

Operator and nature friendly with low noise and vibration

High fuel efficiency and low maintenance cost

Reliable cold starts at -25℃ and applicable altitude at ≤2500m without derating

Major overhaul period is more than 12000 hours


ConfigurationVertical, in-line, 6-cylinder, Water-cooled, 4-stroke
AspirationTurbochargedNaturalTurbocharged and air to air inter-cooled
Bore ×Stroke  (mm)108 ×132108 ×115
Displacement  (L)4.844.21
Compression ration17.5:117:117.5:1
Prime power/Speed  (kW/r/min)70/150040/150044/180055/150055/180066/1800
Standby power/Speed  (kW/r/min)73.5/150044/150048/180060.5/150060.5/180072.6/1800
Fuel consumption  g/(kW·h)≤200≤205≤200
Oil capacity  (L)11-13
Oil consumption  g/(kW·h)≤1.5
Starting methodElectric
Noise Lw  dB(A)≤102≤98≤102
Applicable altitude  (m)≤2500≤1000≤2500
Engine dimension (L×W×H)  (mm)1100 ×750 ×10801100 ×750 ×960
Dry weight  (kg)550360370

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