WP4.6N series is a new generation of high power density engine independently developed by Weichai, with compact structure and excellent economy; Power coverage of 110-148kW, adapted to 90-132kW generator sets.

Power Rating

Units: USMetric
Maximum Power 181 hp135 kW
Minimum Power 147 hp110 kW
Maximum Torque / Speed / N·m / r/min

Emission Standards

Emissions China non-road Stage Ⅲ


Series WP4.6N
Fuel Diesel
EngineType Inline 4-cylinder, four-stroke engine
Cylinder Number 4
Valve Number 4
Bore 108 mm
Stroke 125 mm
Displacement 4.58 L
Aspiration Turbocharged and aftercooled
Compression Ratio 16.9:1
Combustion System Electronically controlled high pressure common rail

Engine Dimensions (Approximate. Final dimensions dependent on selected options)

Length 1220 mm
Width 800 mm
Height 1060 mm
Weight - Net Dry (Basic Operating Engine Without Optional Attachments) 480 kg

Remarks: Product parameters and pictures are for reference only; subject to change without notice.