Service Idea >
Strategic Target
Active process, segment synchronization
Professional and efficient, premium value
Product technical characteristics:
1. High-efficiency turbocharged/turbocharged and intercooled technology with sufficient power reserve.
2、Using Yuchai's proprietary piston ring sealing technology and valve oil sealing technology, lubricant consumption is more than 50% lower than that of domestic products of the same power class.
3、The body and cylinder head are made of alloy cast iron with high degree of strengthening, and adopt complete crankshaft.
Market:
Suitable for 250~500 tons inland transportation boats, 7~12 meters yachts, 15~25 meters tour boats, 24~100kW marine generator sets, etc.
| Model | Rated Power@Speed | |
| Main engine | YC4108C | 40kW(55Ps)@1500rpm |
| YC4D55C | 40kW(55Ps)@1800rpm | |
| YC4D80-C20 | 58kW(79Ps)@2400rpm | |
| YC4108ZC | 50kW(68Ps)@1500rpm | |
| YC4D75C | 55kW(75Ps)@1800rpm | |
| YC4D100Z-C20 | 75kW(102Ps)@2400rpm | |
| YC4D120Z-C20 | 90kW(122Ps)@3000rpm | |
| Auxiliary engine | YC4108C | 40kW(55Ps)@1500rpm |
| YC4108ZC | 50kW(68Ps)@1500rpm |
| SPECIFICATION | ||
| 1 | L-4,4-Stroke-Cycle-Diesel | |
| 2 | Emissions | / |
| 3 | Displacement | 4.214L(257.2cuin) |
| 4 | Compression ratio | 17:01 |
| 5 | Rated engine speed | 1500,1800rpm |
| 6 | Bore | 108mm(4.25in) |
| 7 | Stroke | 115mm(4.53in) |
| 8 | Firing order | 1-3-4-2 |
| 9 | Injection timing | 12～18 BTDC |
| 10 | Aspiration | Turbocharged/Natural aspirated |
| 11 | Governor | Mechanical/Electronic tuned |
| 12 | Cooling system | Heat Exchanger |
| 13 | Weight ,Net Dry(approx) | 390kg(859.8lb) |
| 14 | Cooling System (engine only) | 7.4L(1.95Gal) |
| 15 | Lube Oil System(refill) | 13L(3.43Gal) |
| 16 | Oil Change Interval | 250hrs |
| 17 | Oil brand | CF grade or above |
| 18 | Rotation | Counterclockwise(from flywheel end) |
| 19 | Flywheel housing | SAE No.3 |
| 20 | Flywheel | SAE No.11.5 |
| 21 | Flywheel Teeth | 130 |
| 22 | Maximum Exhaust Back Pressure | 10kPa |
| 23 | Dimension(LxWxH) | 1064×698×989 |
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