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Construction Machinery


Engine spare parts


Lubricant oil

G-Drive Engine


Features & Benefits

●With integrated crank case, postposition gear chamber and point-line gear-meshing patent technology, the engine has the advantage of low noise 

● Wet cylinder liner structure facilitates maintenance and repair
● High mean effective pressure and power density
● Improved fuel consumption by P7100 fuel pump, P-injector and Honeywell turbocharger
● Yuchai sealing technology in piston ring and valve oil seal improves the lube oil consumption
● 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 YC6MK350L-D20 YC6MK420L-D20 YC6MK420L-D21 YC6MK420L-D30
Configuration Vertical, In-line, 6-Cylinder,Water-cooled, Four stroke
Aspiration Turbocharged & Intercooled
Bore ×Stroke(mm) 123×145
Displacement (L) 10.338
 Compression Ratio 17.51
Prime Power/Speed(kW/r/min) 235/1500 281/1500 281/1800 281/1500
Standby Power/Speed(kW/r/min) 258.5/1500
309/1500 309/1800 309/1500
Fuel consumption g/(kW·h) 195
Oil capacity(L) 28
Oil consumption  g/(kW·h) 1.0
Starting Method Electrical
 Noise Level   Lp dB(A) ≤102
Emission Standard T2

Dry Weight(kg) 1050 880

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