Brief Introduction to YC4E Series Engine
YC4E series diesel engine is developed by YUCHAI on the basis of YC6G series diesel engine with a displacement of 7.8 liters through stroke-shortening and bore-reducing which maintains advantages of YC6G series diesel engines and featured by higher dynamic characteristics and easier operation & maintenance to be used for high-speed and light-duty vehicles. Engines up to Euro-III standard adopt the BOSCH electronic control high-pressure CR or EUP fuel injection technology.
● Adopting high-efficiency turbochargers with the bypass valve featured by better emission, lower fuel & oil consumption and quicker response.
● Adopting intensified in-line P type pump and small-diameter 6-aperture P type injectors featured by lower emission and lower fuel consumption.
Adopting the verified slide-fit cylinder liner featured by better maintainability.
Meeting requirement of Euro-II & Euro-III standard of emission.
Main Technical Parameters of YC4E Series Engines up to Euro-3
| Model | YC4E140-32 | YC4E140-30 | YC4E160-30 | YC4E180-30 | YC4E140-31 | YC4E160-31 | YC4E170-31 |
Type | Vertical, in-line, water-cooled, 4 stroke, electronic control, direct injection |
Electronic control system | High pressure & common rail | EUP |
No. of Cylinders | 4 |
Bore X Stroke
（mm× mm） | 110×112 |
Displacement （ L） | 4.257 |
Intake way | Turbo-charging & inter-cooling |
Rated power/speed （kW/r/min） | 103/2600 | 105/2500 | 118/2500 | 132/2500 | 103/2500 | 118/2500 | 125/2500 |
Max. torque/speed(N.m/r/min) | 430/≤1600 | 500/≤1600 | 600/≤1600 | 630/≤1600 | 430/1200~1600 | 550/1200~1600 | 590/1200~1600 |
Min. fuel consumption at full load (g/kW.h) | ≤200 |
Noise（ISO 3744）dB(A) | ≤99 |
Emission (TAS) | Euro-III |
Net mass（kg） | ≤420 |
Application | Medium-duty trucks, high-grade pick-ups, low velocity automobiles |
YC4E国2系列主要技术参数 Main Technical Parameters of YC4E Series Engines up to Euro-2
| Model | YC4E135-20 | YC4E135-21 | YC4E140-20 | YC4E150-20 | YC4E160-20 | YC4E180-20 |
Type | Vertical, in-line, water-cooled, 4 stroke, direct injection |
No. of Cylinders | 4 |
Bore X Stroke
（mm× mm） | 110×112 |
Displacement（ L） | 4.257 |
Intake way | Turbo-charging & inter-cooling |
Rated power/speed （kW/r/min） | 100/2800 | 100/2800 | 105/2800 | 110/2600 | 118/2600 | 132/2600 |
Max. torque/speed(N.m/r/min) | 392/1400~1700 | 392/1400~1700 | 430/1400~1800 | 490/1400~1700 | 520/1400~1700 | 590/≤1700 |
Min. fuel consumption at full load (g/kW.h) | ≤200 |
Noise（ISO 3744）dB(A) | ≤99 |
Emission (TAS) | Euro—II |
Net mass（kg） | 380 |
Application | Medium-duty trucks, high-grade pick-ups, low velocity automobiles |
