WP4.1 series is a new generation of high power density engine independently developed by Weichai, with compact structure and excellent economy; Power coverage of 60-105kW, suitable for 50-88kW generator sets.

Power Rating

Units: USMetric
Maximum Power 129 hp96 kW
Minimum Power 121 hp60 kW
Maximum Torque / Speed / N·m / r/min

Emission Standards

Emissions China non-road Stage Ⅲ


Series WP4.1
Fuel Diesel
EngineType Inline 4-cylinder, four-stroke engine
Cylinder Number 4
Valve Number 2
Bore 105 mm
Stroke 118 mm
Displacement 4.088 L
Aspiration Turbocharged and aftercooled
Compression Ratio 17.5:1
Combustion System Electronically controlled high pressure common rail

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

Length 892 mm
Width 683 mm
Height 873 mm
Weight - Net Dry (Basic Operating Engine Without Optional Attachments) 400 kg

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