
Product Overview
This high-precision Fuel Injector Copper Sleeve (Part Number: 2291490) is engineered as a direct replacement for Caterpillar C-9 diesel engines. As a leading global supplier of heavy-duty engine components, we specialize in providing reliable parts to major markets worldwide, including North America, Europe, the Middle East, and Asia-Pacific. This component is essential for maintaining optimal fuel injection pressure and preventing leaks, ensuring your machinery operates at peak efficiency.
Key Features & Benefits
- Premium Copper Alloy Construction: Manufactured from high-grade copper for superior thermal conductivity, corrosion resistance, and excellent sealing properties under extreme engine temperatures.
- Precision OEM Dimensions: Engineered to exact OEM size and specifications (2291490) for a perfect, drop-in fitment, eliminating installation issues and ensuring proper injector alignment.
- Enhanced Durability & Performance: Designed to withstand high-pressure fuel cycles, reducing the risk of fuel washdown into the crankcase and prolonging overall engine life.
- Cost-Effective Solution: Offers a reliable, high-quality alternative to genuine parts, providing significant value without compromising on performance or fit.
- Supports Critical Machinery: A vital component for maintaining the reliability of excavators, trucks, loaders, and other heavy equipment powered by the C-9 engine.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number | 2291490 |
| Type | Fuel Injector Copper Sleeve |
| Compatible Engine Model | Caterpillar C-9 |
| Engine Type | Diesel |
| Material | Copper Alloy |
| Size | OEM Standard Size |
| Weight (Approx.) | 1 kg |
| Place of Origin | Guangdong / Guizhou, China |
OEM Cross-Reference
This part is manufactured to the exact specifications of the following OEM part number:
- Caterpillar®: 2291490
Note: Always verify part number compatibility with your specific engine serial number before purchase.
Compatibility
This fuel injector copper sleeve is designed specifically for the Caterpillar C-9 diesel engine. It is a critical component found in a wide range of Caterpillar-powered machinery, including but not limited to:
- Excavators (e.g., various models fitted with C-9 engine)
- Trucks & On-Highway Vehicles
- Forklifts
- Bulldozers
- Buses
- Wheel Loaders & Skid Steer Loaders
- Industrial & Generator Sets
Global Supply & Distribution
We are a certified exporter with extensive experience in international B2B trade and logistics compliance. Our robust supply chain ensures reliable delivery to key industrial regions globally.
- Worldwide Shipping: We ship to all major markets, including North America (USA, Canada, Mexico), Europe (UK, Germany, Netherlands, Poland), the Middle East (UAE, Saudi Arabia), Asia-Pacific (Australia, Singapore, Japan), and South America.
- Fast Delivery Network: Efficient logistics partnerships enable prompt delivery to major ports and inland freight hubs. Standard and expedited shipping options are available.
- Export-Ready Packaging: All parts are securely packaged to prevent damage during long-distance ocean or air freight transport.
- Trade Compliance: All documentation (commercial invoice, packing list, certificate of origin) is provided to ensure smooth customs clearance.
Quality Assurance
We are committed to supplying components that meet the demanding standards of the heavy equipment industry.
- Manufacturing Standards: Produced in ISO-certified facilities using precision machining and quality-controlled materials.
- Comprehensive Warranty: Backed by a 6-month warranty against manufacturing defects.
- Rigorous Testing: Each batch undergoes stringent quality checks. A Machinery Test Report is available upon request.
- Pre-Shipment Inspection: Video outgoing-inspection services are provided to give buyers confidence in product quality before shipment.
FAQ
Q1: How do I know if my Caterpillar C-9 engine needs a new injector copper sleeve?
A1: Common signs include visible fuel leaks around the injector base, fuel contamination in the engine oil (fuel washdown), difficulty starting, or loss of engine power. A compression or leak-down test can help diagnose a failed sleeve. Always consult your engine service manual.
Q2: Is special tooling required for the installation of this sleeve?
A2: Yes, proper installation is critical. Installing a fuel injector copper sleeve typically requires specific driver tools and a sealing compound as specified by the engine manufacturer. Incorrect installation can lead to immediate failure. We recommend the procedure be performed by a qualified technician using the correct Caterpillar service tools.
Q3: Do you provide technical support or installation guidelines with the part?
A3> While we supply the OEM-quality component, installation procedures are proprietary to the engine manufacturer (Caterpillar). We recommend referencing the official Caterpillar C-9 engine service manual (SENR, SEBP, or SEHS series) for the complete, step-by-step installation and torque specifications to ensure a proper, lasting repair.
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 .