Product Overview

This professional-grade Common Rail Injector Repair Kit, designed specifically for Caterpillar C7 and C9 diesel engines, is a high-quality replacement solution for fuel injection system maintenance and overhaul. Manufactured in Shandong, China, this kit is engineered for global distribution, serving major markets across North America, Europe, Asia-Pacific, the Middle East, and South America. It is an essential component for workshops, service centers, and fleet operators seeking reliable, cost-effective injector repair solutions.

Key Features & Benefits

• Superior Material Quality: Constructed from premium stainless steel, offering exceptional corrosion resistance and long-term durability under high-pressure fuel injection conditions.
• Precision Engineering: Manufactured to meet or exceed OEM specifications, ensuring a perfect fit and reliable performance for C7 and C9 engine injectors.
• Enhanced Fuel Efficiency: Designed to restore injector spray patterns, improving combustion efficiency and reducing fuel consumption.
• Cost-Effective Solution: Provides a professional-grade repair option at a fraction of the cost of a complete injector replacement, maximizing your return on investment.
• Rigorous Quality Control: Each kit undergoes strict testing to ensure dimensional accuracy and sealing integrity, backed by a 4-month warranty for peace of mind.

Technical Specifications

OEM Cross-Reference

This repair kit is designed as a direct replacement for the following OEM and reference numbers:

• OEM Number: C7C9repairkir
• Part Number: 6406003-C7C9

Note: This kit is a specialized repair component for Caterpillar C7 and C9 common rail injectors. For specific OEM injector model numbers, please verify compatibility with your injector’s serial number or consult your service manual.

Compatibility

• Engine Models: Caterpillar C7, Caterpillar C9
• Vehicle Applications: Diesel engines in heavy-duty trucks, construction equipment, agricultural machinery, and industrial power units.
• Year Ranges: Compatible with C7 and C9 engines manufactured from the early 2000s onward, including ACERT technology variants.

Global Supply & Distribution

We provide efficient worldwide shipping with direct delivery to major ports and industrial centers, including Los Angeles, Rotterdam, Shanghai, Dubai, and Singapore. Our international trade compliance ensures smooth customs clearance across all major markets. We serve a diverse client base in North America, Europe, Asia-Pacific, the Middle East, Africa, and South America.

• Shipping: Express (DHL, FedEx, UPS), Air Freight, and Sea Freight options available.
• Lead Time: Fast dispatch from stock; typically 2-5 business days for order processing.
• Export Experience: Extensive experience in international B2B transactions, supporting bulk orders and distribution partnerships.

Quality Assurance

• Manufacturing Standards: Produced in ISO-certified facilities in Shandong, China, with strict adherence to industry quality benchmarks.
• Warranty: 4-month warranty against manufacturing defects in materials and workmanship.
• Testing: Each batch is sampled and tested for dimensional accuracy, material integrity, and pressure sealing performance before shipment.

FAQ

Q1: Is this repair kit compatible with all Caterpillar C7 and C9 injectors?
A: This kit is designed for common rail injectors used in C7 and C9 engines. However, due to variations in injector designs across different production years (e.g., HEUI vs. common rail), we strongly recommend verifying your injector’s specific model number and cross-referencing it with part number 6406003-C7C9 before purchase.

Q2: What is included in the repair kit, and what additional parts might be needed?
A: The kit typically includes essential internal components such as seals, O-rings, gaskets, and small hardware for injector overhaul. It does not include the injector body, nozzle, or solenoid valve. For a complete repair, you may also need new fuel return lines and high-pressure seals, depending on the condition of your injector.

Q3: What is the recommended installation procedure for this kit?
A: Installation should be performed by a qualified diesel technician using proper tools, including a torque wrench and injector puller. The work area must be exceptionally clean to prevent contamination. After installation, it is critical to prime the fuel system and check for leaks before starting the engine. Follow the manufacturer’s service manual for your specific C7 or C9 engine for detailed procedures.

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 .