
WP10.5H Series · 10.5 L · China Non-Road Stage IV
Tractor Engine WP10.5H
Models: WP10.5HG370E475 · WP10.5HG385E475
For 340-430 hp heavy wheel tractors covering deep ploughing, subsoiling, combined tillage, large-scale seeding and towed transport
272.5–336 kW / 340–430 Ps
Power range (kW / Ps)
2033 N·m / 1500 rpm
Max torque speed (N·m / rpm)



At a glance
The WP10.5H comes from an original Weichai diesel engine supplier and is built as an Inline unit, with 10.5 L displacement. Rated output spans 272.5–336 kW (340–430 Ps). Peak torque reaches 2033 N·m. It is supplied to meet China Non-Road Stage IV emission requirements. Typical duty is tractor service.
Product Overview
The WP10.5H is a large-displacement, high-power engine with strong low-speed torque, high reliability, low fuel consumption and strong adaptability; power covers 272-370.3 kW.
Product Advantages
- High reliability. Purpose-strengthened design of the block, crank-connecting rod mechanism and shaft train for agricultural duty, giving proven durability.
- Strong power. Developed specifically for agricultural duty with high output and ample torque reserve, meeting power demands across all working conditions for higher work efficiency.
- Efficient and economical. Electronically controlled high-pressure common-rail injection, a high-efficiency turbocharging system, low-friction design and high-efficiency, low-heat-rejection combustion deliver excellent fuel economy.
- Good comfort. Pilot-injection technology and high-precision meshing gear trains reduce engine vibration and noise for better comfort.
Specifications
| Power range (kW / Ps) | 272.5-336/340-430 |
| Max torque speed (N·m / r/min) | 2033/1500 |
| Emission standard | China Non-Road Stage IV |
| Fuel | Diesel |
| Engine type | Inline |
| Number of cylinders | 6 |
| Valves | 4 |
| Displacement (L) | 10.5 |
| Aspiration | Turbocharged, intercooled |
| Vehicle application | Tractor |
| Engine dimensions (L×W×H) (mm) | 1460×830×1579 |
| Weight (G.W.) (kg) | 1515 |
Note: product parameters and images are for reference only and are subject to change without notice.
Model Line-up
| Model | Rated power / speed (kW / rpm) | Max torque / speed (N·m / rpm) | Displacement (L) | Emission standard | Technology route | Application | Valves | Use | Type | Aspiration |
|---|---|---|---|---|---|---|---|---|---|---|
| WP10.5HG370E475 | 272.5/2100 | 1705/1500 | 10.5 | China Non-Road Stage IV | CR + DOC + DPF + SCR + ASC | Tractor | 4 | Tractor | Inline | Turbocharged, intercooled |
| WP10.5HG385E475 | 293/2100 | 1750/1500 | 10.5 | China Non-Road Stage IV | CR + DOC + DPF + SCR + ASC | Tractor | 4 | Tractor | Inline | Turbocharged, intercooled |
Request a Quote
Send the model designation (for example WP10.5HG370E475), the required quantity and your destination port.
Technical details
The Weichai WP10.5H is built on a Inline configuration with 6 cylinders and 4 valves per cylinder architecture. Displacement is 10.5 L. Intake is turbocharged, intercooled. It is offered for diesel operation. For installation planning, the unit has overall dimensions of 1460×830×1579 and a dry weight of 1515 kg.
Typical applications
The Weichai WP10.5H is specified for tractor duty. Confirmed applications include the following, and we can advise on suitability for your machine:
- Tractor
WP10.5H frequently asked questions
What is the power range of the Weichai WP10.5H?
The WP10.5H covers 272.5–336 kW (340–430 Ps). Confirm the exact sub-model code before ordering, because output varies across the model line-up.
What peak torque does the WP10.5H deliver?
Maximum torque reaches 2033 N·m. Torque is developed from 1500 r/min. This figure governs how the machine pulls away from low engine speed, so check it against your gearbox ratios and duty cycle.
Which emission standard does the WP10.5H meet?
This unit is offered to China Non-Road Stage IV. Tell us your destination market and we will confirm the certification route before shipment.
Is the WP10.5H a genuine Weichai engine?
Yes. Units are sourced through controlled supply channels to original factory specification and are supplied with export packing and documentation.
How is the WP10.5H shipped and how long does delivery take?
Engines are crated for export and consolidated at the port. Send your model designation, quantity and destination port for a firm quotation and lead time.
What is the configuration of the WP10.5H?
The WP10.5H is built on a Inline, 6 cylinders, 10.5 L of displacement layout. Send us your machine model if you need confirmation that this layout fits your installation.

