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Lubricant oil


Marine Engines

YC4F/4FA

Features & Benefits

● World-class high speed engine for speed pursuer
● Yuchai sealing technology in piston ring and valve oil seal reduces the lube oil consumption
● High reliability, fuel efficiency and low maintenance cost
● Compact size facilitates installation, maintenance and repair
● Operator and nature friendly with low noise, rapid start ability and low emissions
● Major overhaul period is more than 10000 hours


Techincal Specifications

Model YC4FA50Z-C20 YC4F115C-31 YC4F100-C20 YC4F90L-C20
Type Vertical, in-line, water-cooled, four stroke
Intake way Turbo charging Turbo charging& inter-cooled
No. of cylinders - Bore × Stroke (mm) 4-96×103 4-92×100
Displacement (L) 2.982 2.66
Compression ratio 16.3:1
Continuous power /speed (kW (Ps)/r/min) 38 (50)/1500 85 (115)/3100 73 (100)/2950 63 (90)/2800
One-hour power/speed (kW (Ps)/r/min) 41.8 (55)/1500 93.5 (130)/3200 80 (110)/3045 70 (95)/2890
Min. specific fuel consumption (g/kW·h) ≤195
Specific oil consumption (g/kW·h) ≤0.8
Crankshaft rotation direction (seen from power output end) Anticlockwise
Starting way Electrical Electrical
Net weight (kg) 380 420
Overall dimensions (LxWxH) (mm) 828×663×724 866×623×738
Certificate ZC、CCS
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