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| 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 | |||
