The WP12 engine is one of the most widely used power units in HOWO heavy-duty trucks, especially in dump trucks, tractor trucks, and mining vehicles. Due to its strong power output and durability, WP12 engines are extremely popular in Africa, the Middle East, and South America.
However, choosing the right WP12 HOWO engine parts is critical to maintaining performance, fuel efficiency, and engine lifespan. In this guide, we’ll cover the common WP12 spare parts, frequent problems, and how to buy reliable parts from trusted suppliers.
What Is the WP12 Engine Used in HOWO Trucks?
The WP12 diesel engine is commonly installed in:
- HOWO dump trucks (highway & mining use)
- HOWO tractor trucks
- HOWO TX7 and HOWO MAX models
- Heavy-duty construction and transport vehicles
With power outputs typically ranging from 380HP to 480HP, the WP12 engine is designed for heavy loads and tough working conditions.
Common WP12 HOWO Engine Spare Parts List
Below are the most frequently replaced WP12 HOWO engine parts in daily operation and maintenance:
Fuel System Parts
- High-pressure fuel injector
- Fuel injection pump
- Common rail components
Engine Overhaul Parts
- Pistons & piston rings
- Cylinder liners
- Engine overhaul repair kits
- Cylinder head gaskets
Lubrication & Cooling Parts
- Oil pump
- Water pump
- Thermostat
- Oil cooler
Air Intake & Exhaust Parts
- Turbocharger
- Intake valves & exhaust valves
- Manifolds
These WP12 spare parts directly affect engine efficiency and reliability, so quality selection is essential.
Common Problems of WP12 HOWO Engines
Even though WP12 engines are known for durability, improper maintenance or poor-quality parts may cause issues such as:
1. Overheating
Often caused by:
- Faulty water pump
- Blocked radiator
- Low-quality thermostat
2. Oil Leakage
Common reasons include:
- Worn cylinder head gasket
- Low-grade sealing materials
- Incorrect installation
3. Fuel System Failure
- Injector blockage
- Poor fuel quality
- Non-genuine fuel pump components
Using genuine or high-quality OEM WP12 HOWO engine parts can significantly reduce these failures.
How to Identify Genuine WP12 HOWO Engine Parts
Due to high market demand, fake or low-quality WP12 parts are common. Here’s how to identify reliable ones:
- ✅ Clear part numbers and consistent markings
- ✅ Proper packaging with manufacturer information
- ✅ Accurate weight and material finish
- ✅ Stable performance and longer service life
Avoid extremely low-priced parts, as they often lead to higher repair costs in the long run.
Genuine vs OEM WP12 HOWO Engine Parts: Which Should You Choose?
- Genuine parts: Best compatibility and durability, higher price
- OEM parts: Cost-effective, suitable for most markets
- Aftermarket parts: Lowest price, but quality varies greatly
For most overseas buyers, OEM WP12 HOWO engine spare parts offer the best balance between performance and cost.
Where to Buy Reliable WP12 HOWO Engine Parts?
Choosing the right supplier is just as important as choosing the right parts. A reliable supplier should offer:
- Stable quality control
- Complete WP12 parts range
- Competitive wholesale pricing
- Fast export logistics
👉 If you are looking for a professional HOWO engine parts supplier, you can explore our full range of HOWO truck spare parts, including WP12 engine components, with technical support and fast quotation.
Final Thoughts
WP12 engines remain a core power solution for HOWO trucks worldwide. Selecting the correct WP12 HOWO engine spare parts not only improves performance but also reduces downtime and operating costs.
📩 Contact us today for:
- WP12 HOWO engine parts price list
- Technical confirmation
- OEM & wholesale cooperation
We are ready to support your business with high-quality HOWO spare parts and professional export service.