Product Overview

This is a new, high-performance Common Rail Fuel Injector engineered as a direct replacement for Caterpillar C4.4 and C6.6 industrial and marine diesel engines. Designed for global distribution, we supply this critical component to major markets including North America, Europe, the Middle East, and Asia-Pacific, ensuring reliable performance for construction, power generation, and heavy machinery applications worldwide.

Key Features & Benefits

• Precision Engineered: Manufactured from high-speed steel for exceptional durability and resistance to high-pressure fuel erosion, ensuring a long service life.
• 100% Professional Tested: Each injector undergoes rigorous bench testing to verify spray pattern, flow rate, and leak integrity, guaranteeing performance that matches OEM specifications.
• Optimized for Performance: Delivers precise fuel metering and atomization for optimal combustion efficiency, improving engine power, reducing emissions, and enhancing fuel economy.
• Reliable Replacement: A direct-fit solution designed to restore engine performance, making it ideal for both repair shops and fleet maintenance operations.
• Global Compliance Ready: Packaged and documented for seamless international shipping and customs clearance to all major industrial regions.

Technical Specifications

OEM Cross-Reference

This injector is a direct interchange for the following OEM and alternative part numbers:

• CAT / Caterpillar: 320-0677, 320-0655, 326-0680
• Common Reference Numbers: 2645A747, 2645A746

Always verify the part number from your original component or engine serial number for perfect compatibility.

Compatibility

This fuel injector is specifically designed for use with the following Caterpillar engine models:

• Engine Model: Caterpillar C4.4 Diesel Engine
• Engine Model: Caterpillar C6.6 Diesel Engine

Typical Applications: These engines are commonly found in a wide range of Caterpillar machinery, including but not limited to skid steer loaders, compact track loaders, small excavators, generator sets, and industrial power units.

Global Supply & Distribution

We are a specialist supplier to the global heavy equipment aftermarket. Our logistics network ensures efficient delivery to key industrial hubs:

• Worldwide Shipping: We export to all major markets, including North America (USA, Canada, Mexico), Europe (UK, Germany, Netherlands), the Middle East (UAE, Saudi Arabia), and Asia-Pacific (Australia, Singapore).
• Fast Port Delivery: Consolidated shipments ensure cost-effective and rapid delivery to major ports such as Los Angeles, Rotterdam, Jebel Ali, and Sydney.
• Export Expertise: All documentation (commercial invoice, packing list, certificate of origin) is prepared to international standards for smooth customs clearance.
• B2B Focus: We support wholesalers, distributors, and large fleet operators with volume pricing and dedicated logistics solutions.

Quality Assurance

• Manufacturing Standards: Produced in a certified facility using precision CNC machinery and advanced quality control systems.
• Comprehensive Warranty: Backed by an 8-month warranty from the date of purchase, covering defects in materials and workmanship.
• Testing Protocol: Every unit is subjected to a final performance test that simulates real-world operating pressures to validate its sealing and injection characteristics before shipment.

FAQ

Q: Is this injector a direct fit for my CAT C4.4 engine, or will it require modification?
A: This is a direct, bolt-on replacement part. It is engineered to the exact physical and performance specifications of the original OEM injector (320-0677). No modifications are required for proper installation.

Q: What precautions should be taken during installation to ensure optimal performance?
A: For best results, always clean the injector seat in the cylinder head thoroughly before installation. Use new sealing washers or O-rings. It is also highly recommended to have the injector coding programmed into the Engine Control Module (ECM) by a qualified technician to ensure perfect calibration and engine performance.

Q: Do you provide technical support or compatibility verification for specific machine serial numbers?
A: Yes. While this injector is designed for the C4.4 and C6.6 engine platforms, we recommend providing your equipment model and serial number prior to purchase. Our technical team can assist in verifying the exact part number compatibility for your specific application to ensure a correct fit.

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 .