WP4.1 Series · 4.088 L · No emission certification / China Non-Road Stage IV
Forklift Loader Engine WP4.1
Models: WP4.1G100A0 · WP4.1G98E310 · WP4.1G100E301 · WP4.1G140E301 · WP4.1G100E440 · WP4.1G125E440
For 3.5 t to 7 t forklift loaders
72–103 kW / 98–140 Ps
Power range (kW / Ps)
540 N·m / 1600–1800 rpm
Max torque speed (N·m / rpm)
At a glance
The WP4.1 comes from an original Weichai diesel engine supplier and is built as an Inline unit, with 4.088 L displacement. Rated output spans 72–103 kW (98–140 Ps). Peak torque reaches 540 N·m. It is supplied to meet No emission certification emission requirements. Typical duty is forklift loader service.
Product Overview
The WP4.1 series suits hydraulic and hydrostatic transmission forklift loaders. The high-emission products meet China Non-Road Stage IV requirements, while the low-emission mechanical pump products meet overseas needs for simple servicing and strong fuel tolerance.
Product Advantages
- Performance. High power, high torque at low speed and a large torque reserve.
- Economy. High combustion efficiency and low fuel consumption; a lower rated speed can be optioned, with the common speed range optimised towards the economy zone.
- Comfort. Vehicle-level NVH custom development for low noise and low vibration.
- Commonality. Small changes are needed for the emissions upgrade, mature components are used throughout, and maintenance and repair are easy.
Specifications
| Power range (kW / Ps) | 72-103/98-140 |
| Max torque speed (N·m / r/min) | 540/1600-1800 |
| Emission standard | No emission certification / China Non-Road Stage IV |
| Fuel | Diesel |
| Engine type | Inline |
| Number of cylinders | 4 |
| Valves | 8 |
| Displacement (L) | 4.088 |
| Aspiration | turbocharged |
| Vehicle application | 3.5-4 t forklift loader |
| Engine dimensions (L×W×H) (mm) | 892×683×873 |
| Weight (G.W.) (kg) | 400 |
Note: product parameters and images are for reference only and are subject to change without notice.
Model Line-up
| Model | Rated power / speed | Max torque / speed | Displacement | Emission standard | Technology route | Application | Valves | Aspiration |
|---|---|---|---|---|---|---|---|---|
| WP4.1G100A0 | 73/2200 | 450/1400-1600 | 4.088 | No emission certification | mechanical pump | 3.5-4 t forklift loader | 2 | turbocharged |
| Model | Rated power / speed | Max torque / speed | Displacement | Emission standard | Technology route | Application | Valves | Aspiration |
|---|---|---|---|---|---|---|---|---|
| WP4.1G98E310 | 72/2300 | 460/1400-1600 | 4.088 | No emission certification | CR | 3.5-4 t forklift loader | 2 | turbocharged |
| WP4.1G100E301 | 73.5/2300 | 400/1400-1600 | 4.088 | No emission certification | CR | 3.5-4 t forklift loader | 2 | turbocharged |
| WP4.1G140E301 | 103/2300 | 520/1600-1800 | 4.088 | No emission certification | CR | 4-4.5 t forklift loader | 2 | Turbocharged, intercooled |
| Model | Rated power / speed | Max torque / speed | Displacement | Emission standard | Technology route | Application | Valves | Aspiration |
|---|---|---|---|---|---|---|---|---|
| WP4.1G100E440 | 74/2200 | 420/1400-1600 | 4.088 | China Non-Road Stage IV | EGR | 3.5-4 t forklift loader | 2 | Turbocharged, intercooled |
| WP4.1G125E440 | 92/2200 | 500/1400-1600 | 4.088 | China Non-Road Stage IV | EGR | 4-4.5 t forklift loader | 2 | Turbocharged, intercooled |
Request a Quote
Send the model designation (for example WP4.1G100A0), the required quantity and your destination port.
Technical details
The Weichai WP4.1 is built on a Inline configuration with 4 cylinders and 8 valves per cylinder architecture. Displacement is 4.088 L. Intake is turbocharged. It is offered for diesel operation. For installation planning, the unit has overall dimensions of 892×683×873 and a dry weight of 400 kg.
Typical applications
The Weichai WP4.1 is specified for forklift loader duty. Confirmed applications include the following, and we can advise on suitability for your machine:
- 3.5-4 t forklift loader
WP4.1 frequently asked questions
What is the power range of the Weichai WP4.1?
The WP4.1 covers 72–103 kW (98–140 Ps). Confirm the exact sub-model code before ordering, because output varies across the model line-up.
What peak torque does the WP4.1 deliver?
Maximum torque reaches 540 N·m. Torque is developed from 1600-1800 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 WP4.1 meet?
This unit is offered to No emission certification. Tell us your destination market and we will confirm the certification route before shipment.
Is the WP4.1 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 WP4.1 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 WP4.1?
The WP4.1 is built on a Inline, 4 cylinders, 4.088 L of displacement layout. Send us your machine model if you need confirmation that this layout fits your installation.