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G-Drive Engines

YC4D/YC4A

Features & Benefits

  • 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 -25Cº and applicable altitude at ≤2500m without power derating
  • Major overhaul period is more than 12000 hours

Technical Specifications

Model YC4D60-D21 YC4D65-D20 YC4D85Z-D20 YC4D80Z-D20 YC4D100Z-D20 YC4A100Z-D20
Type Vertical, in-line, water-cooled, four stroke
Intake way Naturally aspirated Turbo charging
No. of cylinders – Bore × Stroke (mm) 4-108×115 4-108×132
Displacement of piston (L) 4.214 4.837
Compression ratio 17:01 17.5:1 17.5:1
Prime power / Speed (kW/r/min) 40/1500 44/1800 55/1500 55/1800 66/1800 70/1500
Standby power / Speed (kW/r/min) 44/1500 48/1800 60.5/1500 60.5/1800 72.6/1800 73.5/1500
Lowest fuel consumption g/(kW·h) ≤205 ≤200 ≤200
Oil capacity (L) 11-13
Oil consumption g/(kW.h) ≤1.5
Starting way Electrical starting
Noise limit dB(A) ≤98 ≤102 ≤102
Emission T2
Applicable altitude (m) ≤1000 ≤2500 ≤2500
Overall dimension
(length × width × height) (mm)		 1110×750×960 1100×750×1080
Net weight of engine (kg) 360 370 550