Product Details
Product Overview
This premium Diesel Fuel Injection Common Rail Injector, identified by part numbers 0445120367 and 5283840, is a direct, high-performance replacement for the Weichai WP10 engine series. Manufactured to strict OE specifications, this injector ensures precise fuel delivery, optimal combustion efficiency, and reduced emissions. We serve a global network of B2B clients, including heavy equipment dealers, fleet operators, and engine rebuilders across North America, Europe, Asia-Pacific, the Middle East, and Africa, providing reliable components for the most demanding industrial applications.
Key Features & Benefits
- Precision Engineering: Delivers exact fuel metering for the Weichai WP10 common rail system, maximizing engine power and fuel economy.
- Durable Construction: Manufactured from high-grade steel to withstand extreme pressure and temperature cycles within the combustion chamber.
- Direct Fitment: Designed as a drop-in replacement for OEM units, minimizing installation time and reducing downtime for your fleet.
- Enhanced Performance: Restores original engine performance, reducing smoke and improving throttle response in heavy-duty trucks and machinery.
- Rigorous Testing: Each unit is pressure and spray pattern tested to ensure consistent operation and long service life.
Technical Specifications
| Specification | Details |
|---|---|
| Part Number | 0445120367 / 5283840 |
| OEM Number(s) | 0445120008 |
| Type | Common Rail Injector |
| Fuel Type | Diesel |
| Material | High-Strength Steel |
| Application | Weichai WP10 Engine |
| Condition | New |
| Weight | 1.8 kg per unit |
| Package Size | 29.5 x 11.5 x 7 cm |
OEM Cross-Reference
This injector is a direct replacement for the following OEM and reference numbers:
- Primary Numbers: 0445120367, 5283840
- Cross-Reference: 0445120008
Compatibility
- Engine Model: Weichai WP10
- Application: Heavy-duty diesel engines used in trucks, construction equipment (loaders, bulldozers), and industrial machinery.
- System Type: Common Rail Direct Injection
Global Supply & Distribution
- Worldwide Shipping: We offer reliable logistics to major ports and industrial centers globally, including Rotterdam, Los Angeles, Shanghai, Dubai, and Singapore.
- Major Markets Served: North America, Europe, South America, Asia-Pacific, Middle East, and Africa.
- Fast Delivery: Stock items are dispatched within 24-48 hours, with express shipping options available for urgent requirements.
- Export Expertise: Our team has extensive experience in international trade, ensuring smooth customs clearance and compliance with local regulations.
Quality Assurance
- Manufacturing Standards: Produced in ISO 9001 certified facilities, adhering to strict quality control processes.
- Testing: Every injector undergoes comprehensive testing for flow rate, spray pattern, and pressure integrity before shipment.
- Warranty: Backed by a 4-month warranty against manufacturing defects, ensuring your investment is protected.
FAQ
Q: Is this injector a direct fit for my Weichai WP10 engine, or do modifications need to be made?
A: Yes, this injector (0445120367) is designed as a direct, bolt-in replacement for the Weichai WP10 common rail system. No modifications to the fuel rail, wiring harness, or ECU are required for installation.
Q: What is the recommended installation procedure for this injector?
A: We recommend following the Weichai service manual. Key steps include: 1) Depressurizing the fuel system. 2) Carefully removing the old injector and cleaning the mounting bore. 3) Replacing the copper sealing washer. 4) Torquing the new injector to the manufacturer’s specifications (typically 70-80 Nm). 5) Priming the system and checking for leaks.
Q: How can I ensure the long-term performance of this common rail injector?
A: Longevity depends on fuel quality and system cleanliness. Always use high-quality diesel fuel and replace the fuel filter regularly. We also recommend using a fuel additive to lubricate the injector components. If you experience starting issues or rough idling, have the injector tested by a professional to confirm it is not clogged or worn.
Our advantages

1.An authorized wholesaler of Isuzu genuine parts, Hino genuine parts, Mitsubishi genuine parts and Mahle parts.
2. We are not only supply genuine parts, but also high quality OEM parts, which are made in China or made in Japan.
3. More than 10 years of experience in machinery parts, professional supply of diesel engine parts.
4. Fast delivery, the fastest can be shipped in one day ,more than 500,000 of different types parts in stock.
5. Scientific ERP system, easy and fast to locate the parts that customer needs.
6. Professional technician checks the parts before delivery, to make sure the parts are correct, usable and defect-free.
Exhibition

Packing&Shipping

1. Our shipment is by air/sea/express (DHL/FEDEX/TNT/UPS/EMS).
2. Once we get confirmation of payment, we will ship products in 2 days.
3. Our packaging is standard export wooden box or others as your requirement.
4. We’ll check and test the products before shipping , and givethe pictures to our customers to confirm.

FAQ
Q1. What is your company major products?
A: Our main products are Liner kit, Piston, Rings, Liner, Gasket kit, Bearing, Injection pump, Nozzle, Water pump, Oil pump,Crankshaft, Turbocharger,Filter, etc.
Q2.What is the MOQ?
A: Normally we can supply any quantity if we have in stock.
Q3. What is your payment term ?
A: We accept Western Union, T/T, Paypal.
Q4. What is the packing ?
A: Carton or wooden case , If you want to put your logo on the packing , We will do it after get your authorization letter.
Q5. When can you deliver products after payment ?
A: By Express ,usually might take 3-4 days ;By Air , Usually take 7-9 days ; By Sea ,usually take 1-2 months .
Q6. What can you do to complete order perfectly ?
A: In the beginning , We will communicate with clients in details to understand what they need .
Before packing , We will check the products and send photos to clients .After confirmation ,
We will packing products well to avoid damage . Once we get tracking number ,
We will send it to customer and keep contact in with clients .
FAQ
Common Product Inquiry Questions
How can I confirm this part matches my engine or injector model?
Send the OEM number, engine model, application, or clear product photos. We will help verify the suitable part before quotation.
Can I ask for packing, shipping, and delivery details together?
Yes. You can combine product confirmation, quantity, destination, packing request, and shipment method in one inquiry so the quotation is more complete.
Why is price not displayed on the page?
This catalog is built for B2B inquiry. Final pricing depends on the confirmed part number, quantity, stock situation, and shipping destination.
What information helps you quote faster?
Please include the OEM number, engine model, quantity, destination country, and any packing or shipping preference. This usually speeds up matching and quotation.
Inquiry Desk
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- Simple inquiry flow with direct sales follow-up.
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Quick Inquiry
Weichai WP10 Diesel Common Rail Injector 0445120367 5283840 – High-Performance Replacement
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Inquiry Desk
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Quick contact for this product. OEM number is attached automatically.
- Simple inquiry flow with direct sales follow-up.
- Send OEM number, quantity, or destination in the optional message if available.
- Every submission is stored in WordPress and sent to your admin email.