Weichai Road Machinery Engines
Reliable Weichai Diesel Engines for Road Construction Machinery
Weichai offers the whole series of construction machinery engines, with displacement ranging from 2.3L to 17L and power ranging from 49.312HP to 758.44HP. As a heavy duty diesel engine range, these construction engines meet the latest emission standard required for off-highway vehicles and machinery. Weichai diesel engines are equipped with an electronically controlled high-pressure common rail and suit loaders, excavators, bulldozers, forklifts, cranes, rollers, graders, small multi-purpose machinery, aerial work platforms, sanitation equipment, wide-body dump trucks and large road building machinery.
What Is an Off Road Machinery Engine?
An off road machinery engine is a heavy-duty diesel power unit built to run equipment such as rollers, graders and loaders through long shifts on rough, dusty worksites. Weichai road machinery engines pair high-pressure common rail fuel injection with exhaust after-treatment (DOC, DPF and SCR) and cooled exhaust gas recirculation, so the machine holds steady output under load while meeting the latest emission norms. Weichai India, a Weichai company based in Hinjawadi, Pune, offers this range as part of its wider off-road engine range.
Weichai Road Machinery Engine Models at a Glance
This range includes eight Weichai diesel engine models, from the 2.289L WP2.3N to the 11.596L WP12. Rated power across the range runs from 88 kW to 338 kW.
| Model | Displacement (L) | Rated Power | Max Torque |
|---|---|---|---|
| WP2.3N | 2.289 | 88–96 kW @ 3200 rpm | 320–380 N.m |
| WP3N | 2.97 | 103–125 kW @ 2800–3000 rpm | 380–520 N.m |
| WP4.1N | 4.088 | 125–140 kW @ 2600 rpm | 600–680 N.m |
| WP4.6N | 4.58 | 162 kW @ 2300 rpm | 800–850 N.m |
| WP7 | 7.47 | 199–220 kW @ 2100 rpm | 1000–1300 N.m |
| WP9H | 8.8 | 247–257 kW @ 1900 rpm | 1600–1700 N.m |
| WP10H | 9.5 | 276–294 kW @ 1900 rpm | 1800–1900 N.m |
| WP12 | 11.596 | 294–338 kW @ 1900 rpm | 2000–2200 N.m |
Why Choose Weichai Engines for Construction Machinery?
Every Weichai construction machinery engine combines proven combustion and emission technology:
1. Advanced combustion design with a high-pressure common rail system for precise fuel control.
2. A specially designed turbocharger and advanced electronic control for responsive power.
3. Integrated after-treatment with cooled EGR to meet the latest emission norms.
4. A wide size range, so you can match a compact machine or a heavy machinery engine requirement from 2.289L to 11.596L.
For tougher duty cycles, Weichai also supplies heavy diesel engines for mining and agriculture.
Frequently Asked Questions
1. Which Weichai engines are available for road machinery?
Weichai offers eight diesel engine models for road machinery, from the WP2.3N at 2.289L to the WP12 at 11.596L, with rated power from 88 kW to 338 kW.
2. What is a construction machinery diesel engine?
A construction machinery diesel engine is a heavy-duty power unit built for loaders, excavators, rollers, graders and similar equipment. Weichai diesel models use high-pressure common rail injection, a turbocharger and electronic control for precise, efficient output.
3. What emission technology do Weichai diesel engines use?
They use a high-pressure common rail system, a specially designed turbocharger, integrated DOC, DPF and SCR after-treatment, and cooled exhaust gas recirculation to meet the latest emission norms.
4. How do I choose construction equipment engines for my machine?
Start with the rated power and torque your machine needs, then choose the displacement class that fits, so you end up with the right construction engine. Compare the models above or download a brochure from any engine page, and our team can help you match the right one.
5. Where can I get full specifications for Weichai engines?
Each Weichai engine page lists displacement, bore and stroke, rated power and torque, and offers a brochure download and enquiry form.
