YC4E Series Diesel Engine

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 0velocity automobiles
 
 
 
 
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, low0 velocity automobiles

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