Road Machinery Diesel Engine Series
Road Machinery WP4.6N Diesel Engine
The Weichai WP4.6N is a compact and lightweight 4.58-liter diesel engine designed for on-highway vehicles such as cargo trucks, dump trucks, sanitation trucks, mixer trucks, and truck-mounted cranes. It meets Euro V and Euro VI emission standards and uses an electronically controlled high-pressure common rail system for precise fuel delivery and improved efficiency. With NVH-optimized design for low noise and vibration, extended component lifespan, and reduced fuel consumption through improved drivetrain efficiency, the WP4.6N delivers a blend of reliability, comfort, and economical operation for commercial fleets.
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 |
| WP4.6N | WP4.6NQ220E61 | 4.58 | 4-108×125 | 4 | 162/2300 | 800/1200-1800 | CR+EGR+DOC+DPF+SCR |
| WP4.6NQ220E61A | 162/2300 | 850/1300-1600 |
FAQ- ENGINE
Weichai is your all-around engine solution for commercial purposes. It will offer a quick understanding of the brand, product, and industry.