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YC4DTECHNICAL SPECIFICATIONS
| Model | YC4D90-D34 | YC4D80-D34 | YC4D105-D34 | YC4D75-D34 | YC4D120-D31 | YC4D140-D31 |
| Prime power | 60 kW @ 1500 r/min | 53 kW @ 1500 r/min | 70 kW @ 1500 r/min | 50 kW @ 1500 r/min | 80 kW @ 1500 r/min | 95 kW @ 1500 r/min |
| Standby power | 66 kW @ 1500 r/min | 59 kW @ 1500 r/min | 77 kW @ 1500 r/min | 55 kW @ 1500 r/min | 88 kW @ 1500 r/min | 105 kW @ 1500 r/min |
| Introduction | YC4D series engine is a classic engine product developed by yuchai, which is well-known and highly recognized in the market and has market holdings of more than 500,000 sets. YC4D90-D34 engines for generator sets have advantages such as high reliability, durability, energy-saving and environment-friendly, compact structure, strong transient loading capacity and easy maintenance. | YC4D series engine is a classic engine product developed by Yuchai, which is well-known and highly recognized in the market and has market holdings of more than 500,000 sets. YC4D80-D34 engines for generator sets have advantages such as high reliability, durability, energy-saving and environment-friendly, compact structure, strong transient loading capacity and easy maintenance. | YC4D series engine is a classic engine product developed by Yuchai, which is well-known and highly recognized in the market and has market holdings of more than 500,000 sets. YC4D105-D34 engines for generator sets have advantages such as high reliability, durability, energy-saving and environment-friendly, compact structure, strong transient loading capacity and easy maintenance. | YC4D series engine is a classic engine product developed by Yuchai, which is well-known and highly recognized in the market and has market holdings of more than 500,000 sets. YC4D75-D34 engines for generator sets have advantages such as high reliability, durability, energy-saving and environment-friendly, compact structure, strong transient loading capacity and easy maintenance. | YC4D series engine is a classic engine product developed by Yuchai, which is well-known and highly recognized in the market and has market holdings of more than 500,000 sets. YC4D120-D31 engines for generator sets have advantages such as high reliability, durability, energy-saving and environment-friendly, compact structure, strong transient loading capacity and easy maintenance. | YC4D series engine is a classic engine product developed by Yuchai, which is well-known and highly recognized in the market and has market holdings of more than 500,000 sets. YC4D120-D31 engines for generator sets have advantages such as high reliability, durability, energy-saving and environment-friendly, compact structure, strong transient loading capacity and easy maintenance. |
| Type | Vertical, in-line, water-cooledYC4D75-D34, four-stroke | Vertical, in-line, water-cooledYC4D75-D34, four-stroke | Vertical, in-line, water-cooledYC4D75-D34, four-stroke | Vertical, in-line, water-cooledYC4D75-D34, four-stroke | Vertical, in-line, water-cooled, four-stroke | Vertical, in-line, water-cooled, four-stroke |
| Induction system | Turbocharged & Intercooled | Turbocharged | Turbocharged & Intercooled | Turbocharged | Turbocharged & Intercooled | Turbocharged & Intercooled |
| Cylinder quantity-bore×stroke | 4-108×115mm | 4-108×115mm | 4-108×115mm | 4-108×115mm | 4-108×115mm | 4-108×115mm |
| Number of valve per cylinder | 2 | 2 | 2 | 2 | 2 | 2 |
| Displacement | 4.21L | 4.21L | 4.21L | 4.21L | 4.21L | 4.21L |
| Fuel supply system | Electronically-control high pressure common rail | Electronically-control high pressure common rail | Electronically-control high pressure common rail | Electronically-controlled assembly pump | Electronically-control high pressure common rail | Electronically-control high pressure common rail |
| Starting mode | Electronic | Electronic | Electronic | Electronic | Electronic | Electronic |
| Compression ration | 16.7:1 | 16.7:1 | 16.7:1 | 16.7:1 | 16.7:1 | 16.7:1 |
| Fual consumption g/(kW·h） | ≤0.2% | ≤0.2% | ≤0.2% | ≤0.2% | ≤0.2% | ≤0.2% |
| Oil capacity (L) | 13L | 13L | 13L | 13L | 13L | 13L |
| Oil consumption g/(kW·h） | ≤0.2% | ≤0.2% | ≤0.2% | ≤0.2% | ≤0.2% | ≤0.2% |
| Noise Lw dB (A) | ≤96dB(A) | ≤96dB(A) | ≤96dB(A) | ≤96dB(A) | ≤96dB(A) | ≤96dB(A) |
| Emission | T3 | T3 | T3 | T3 | T3 | T3 |
| Applicable altitude （m） | ≤1000 | ≤1000 | ≤1000 | ≤1000 | ≤1000 | ≤1000 |
| Engine dimension (L×W×H) (mm) | 1298×732×999 | 1298×732×999 | 1298×732×999 | 1298×732×999 | 1206×750×975 | 1206×750×975 |
| Dry weight (kg) | 370 kg | 370 kg | 370 kg | 370 kg | 450 kg | 450 kg |
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