On Road Truck Diesel Engine

Truck Diesel Engine

WP8 Diesel Engine

The WP8 series is a compact and efficient 7.8L diesel engine range built for medium and heavy-duty trucks. With advanced combustion design and a high-pressure common rail system, it delivers strong power, quick acceleration and stable performance. The turbocharger and electronic control system improve fuel efficiency and reliability. The engine uses DOC, DPF, SCR and cooled EGR technologies to meet the latest emission norms. Its balanced torque output at low and mid RPM makes it suitable for long-haul and city operations.

SALIENT FEATURES

Advanced combustion design

Engines equipped with High Pressure Common Rail System (HPCRS).

Specially designed Turbo Charger

Advanced electronic control.

Integrated exhaust after treatment devices consisting Diesel Oxidation Catalysts (DOC), Diesel Particulate Filters (DPF) and Selective Catalytic Reduction (SCR) catalysts

Engines complaint with latest emission norms.

Cooled Engine Exhaust Gas Re-circulation.

TECHNICAL INFORMATION

Specification

Engine family model displacement(L) cylinder-bore×stroke
(mm)
Valve per cylinder Rated power/speed
(kW/rpm)
Max torque/speed
(N.m/rpm)
Technical route
WP8 WP8.320E61 7.8 6-110×136 4 235/2100 1280/1200-1600 CR+EGR+DOC+DPF+SCR
WP8.350E61 257/2100 1400/1200-1600
WP8.320E61A
(idle550rpm)
235/2100 1300/1200-1600
WP8.350E61A
(idle550rpm)
257/2100 1400/1200-1600
WP8.320E62 235/2100 1300/1200-1600 CR+DOC+DPF+Hi-SCR
WP8.350E62 257/2100 1400/1200-1600

FAQ- ENGINE

Weichai is your all-around engine solution for commercial purposes. It will offer a quick understanding of the brand, product, and industry.

Q. What is an on-road diesel engine?

It is a diesel engine designed for commercial road vehicles such as trucks and buses, providing strong power, fuel efficiency, and long service life for daily transport operations.

Q. Are Weichai on-road diesel engines fuel-efficient?

Yes, Weichai engines use optimized combustion, high-pressure common rail technology, and advanced ECU to deliver high mileage and lower fuel consumption.

Q. Do these engines perform well under heavy loads?

Yes, they offer high torque at low RPM, which ensures powerful pickup, smooth hill climbing, and stable performance even when fully loaded.

Q. Are Weichai diesel engines comfortable for drivers?

They feature strong NVH performance with low noise, low vibration, and better driving comfort during long-distance travel.

Q. What vehicles use Weichai on-road diesel engines?

They are widely used in cargo trucks, dump trucks, mixer trucks, intercity buses, and long-route coaches.
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