Product Overview

This high-performance Common Rail Fuel Injector (Part No. 422-1144 / 20R4180) is engineered for precision fuel delivery in heavy-duty diesel engines. Designed as a direct replacement for OEM components, it ensures optimal combustion, reduced emissions, and restored engine power. We specialize in the global supply of critical diesel engine parts, serving major industrial markets across North America, Europe, the Middle East, and Asia-Pacific with reliable logistics and expert support for B2B clients.

Key Features & Benefits

• Precision Engineered: Manufactured to exact OEM specifications for perfect fitment and seamless integration into the common rail fuel system.
• Enhanced Durability: Constructed from high-grade steel components to withstand extreme pressures and ensure long service life under demanding operating conditions.
• Optimal Performance: Delivers precise fuel atomization for improved combustion efficiency, resulting in better fuel economy, increased power output, and lower emissions.
• Reliable Replacement: A cost-effective solution for repair and maintenance, restoring engine performance to factory standards without the OEM price premium.
• Global Compliance Ready: Supplied in neutral or WX export packaging, ensuring smooth customs clearance and international shipping to any destination.

Technical Specifications

OEM Cross-Reference

This injector is a direct cross-reference for the following OEM part numbers:

• 422-1144
• 20R4180
• 4221144 (OE Number)

Compatibility

This Common Rail Injector is designed for specific heavy-duty diesel engine families, commonly found in excavators, mining equipment, and large industrial power units.

• Compatible Engine Models: 3606, 3608, 3612, 3616.
• Application: Used within the common rail fuel injection system of these engines to replace faulty or worn injectors.

Global Supply & Distribution

We are a trusted partner for heavy equipment fleets and parts distributors worldwide. Our streamlined export process ensures timely delivery to major industrial hubs and ports.

• Worldwide Shipping: We ship to all major markets, including North America (USA, Canada), Europe (UK, Germany, Netherlands), the Middle East (UAE, Saudi Arabia), and Asia-Pacific (Australia, Singapore).
• Fast Logistics: Efficient dispatch from our warehouse in Shandong, China, with reliable air and sea freight options for bulk orders to key global ports.
• Export Expertise: Extensive experience in international B2B trade, with all documentation (commercial invoice, packing list, certificate of origin) prepared for compliant customs clearance.

Quality Assurance

Every injector is manufactured to meet stringent quality standards, ensuring reliability and performance you can count on.

• Manufacturing Standards: Produced using precision CNC machinery and advanced calibration techniques to match OEM performance specifications.
• Rigorous Testing: Each unit undergoes functional testing to verify spray pattern, flow rate, and leak integrity before packaging.
• Warranty: Backed by a 4-month warranty from the date of delivery, covering defects in materials and workmanship.

FAQ

Q: Is this injector a direct fit for my 3612 engine without modification?
A: Yes. This injector is manufactured as a direct OEM replacement for the 422-1144 / 20R4180 part. It is designed for a perfect fit and function within the common rail system of compatible engines like the 3612, requiring no modifications for installation.

Q: What is included in the packaging, and is it suitable for international resale?
A: Each injector is supplied in individual, protective neutral or WX export packaging. This packaging contains no manufacturer branding, making it ideal for international distributors, workshops, and resellers who wish to use their own branding or sell as a generic high-quality replacement part.

Q: What precautions should be taken during installation?
A: For optimal performance and longevity, we recommend professional installation. The common rail system is high-pressure and requires clean conditions. Always use new sealing washers or O-rings, ensure the injector seat is clean and undamaged, and follow the engine manufacturer’s specified torque procedure during installation to prevent leaks or damage.

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 .