Product Details
Product Overview
This high-performance Common Rail Injector (Part Numbers: 0445120066 / 4290986) is a premium-grade direct replacement designed for heavy-duty excavator diesel engines. Manufactured to meet or exceed OEM specifications, this injector ensures optimal fuel atomization, improved combustion efficiency, and reduced emissions for demanding work environments. We offer global shipping to major industrial centers including North America, Europe, Southeast Asia, the Middle East, and Australia, ensuring rapid delivery to support your fleet maintenance and repair operations.
Key Features & Benefits
- Precision Engineering: Manufactured from high-grade steel with precision-machined internal components for consistent fuel delivery and reliable engine performance.
- Enhanced Durability: Built to withstand the high pressures and extreme temperatures of modern common rail diesel systems, extending service life compared to standard replacements.
- Improved Efficiency: Optimized spray pattern ensures complete fuel combustion, leading to better fuel economy and reduced carbon build-up.
- Direct Fitment: Universal design for diesel engines, ensuring easy installation without modifications. Ideal for both repair and replacement applications.
- Rigorous Testing: Each injector undergoes strict quality control and pressure testing to guarantee performance and reliability out of the box.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number | 0445120066 / 4290986 |
| Type | Common Rail Injector |
| Fuel Type | Diesel |
| Material | High-Grade Steel |
| Condition | New |
| Weight (per unit) | 1.8 kg |
| Application | Diesel Engine Injection Pump System |
| Quality Standard | High-Performance / OEM Replacement |
| Warranty | 4 Months |
| Minimum Order Quantity (MOQ) | 6 Pcs |
| Packaging Size (per batch) | 29.5 x 11.5 x 7 cm |
| Gross Weight (per batch) | 2.000 kg |
OEM Cross-Reference
This injector is a direct replacement for the following OEM and reference numbers. Please verify your engine’s specific requirements before ordering.
- Primary Part Numbers: 0445120066, 4290986
- Alternative/Cross-Reference: This injector is widely used in Bosch common rail systems. Please consult your engine manual for exact compatibility.
Compatibility
- Engine Type: Diesel engines utilizing common rail injection systems.
- Application: Designed for excavators and heavy construction equipment. Also suitable for other diesel engine vehicles (trucks, generators, agricultural machinery) using the same injector specification.
- Note: Universal fitment for diesel engines. We recommend professional installation to ensure correct calibration and performance.
Global Supply & Distribution
We are a trusted supplier to the global B2B market, providing efficient logistics solutions for international buyers.
- Worldwide Shipping: We ship to all major continents including North America, South America, Europe, Asia-Pacific, Africa, and the Middle East.
- Fast Delivery: Orders are processed and dispatched quickly to major ports and industrial hubs (e.g., Los Angeles, Rotterdam, Shanghai, Dubai, Singapore).
- Export Experience: We have extensive experience in international trade, ensuring compliant documentation and secure packaging for long-distance transit.
- Bulk Orders: Competitive pricing and volume discounts available for MOQ of 6 pcs and above. Contact us for custom shipping arrangements.
Quality Assurance
- Manufacturing Standards: Produced in a facility adhering to strict quality control processes, ensuring consistency and reliability.
- Warranty: Backed by a 4-month warranty against manufacturing defects.
- Testing: Each injector is tested for fuel pressure, spray pattern, and leak integrity before shipment to ensure peak performance.
FAQ
Q1: Is this injector a direct replacement for my excavator’s original injector?
A: Yes, this injector (0445120066 / 4290986) is designed as a direct OEM replacement. It is a universal fit for common rail diesel engines. However, we strongly advise verifying your engine model and original injector part number to ensure 100% compatibility before purchasing.
Q2: Do I need to program or calibrate the injector after installation?
A: While this injector is a mechanical/electrical replacement, we recommend professional installation. For optimal performance and to avoid engine damage, the injector should be installed by a qualified technician who can properly torque and, if required by your engine control system, perform any necessary calibration or coding.
Q3: What is the recommended maintenance for this injector?
A: To maximize the lifespan of your new injector, ensure your fuel system is clean. Regularly replace your fuel filters as per your engine manufacturer’s schedule. Using high-quality diesel fuel and avoiding contamination will also help maintain injector performance and prevent premature wear.
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
Send Product Inquiry
Use this form to ask for fitment, MOQ, delivery time, packing, and shipping support for this product.
- 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.
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Quick Inquiry
Bosch-Style Common Rail Injector 0445120066 / 4290986 for Excavator Diesel Engine
Send one clear inquiry and we will reply with quotation, lead time, and fitment confirmation.
- OEM number is included automatically when available.
- Add quantity, destination, and packing needs for a faster quote.
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Inquiry Desk
Send Inquiry
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.