Product Details
Product Overview
This high-quality remanufactured common rail diesel fuel injection pump, cross-referenced as OEM numbers 317-8021, 3178021, 10R-7660, 10R7660, and 2641A312, is specifically engineered for Caterpillar C6.6 and 320D excavator engines. Designed as a direct replacement for worn or failed units, this pump restores original engine performance and fuel efficiency. We offer global shipping with fast 3-7 day delivery to major industrial centers, serving markets across North America, Europe, Asia-Pacific, the Middle East, and Africa. Our extensive export experience ensures smooth international trade compliance for B2B buyers worldwide.
Key Features & Benefits
- Precision Remanufacturing: 100% professionally tested to meet or exceed OE specifications, ensuring reliable fuel delivery and consistent engine power.
- Enhanced Durability: Built with standard-sized, high-strength components to withstand the rigorous demands of heavy-duty excavator applications.
- Direct Fit Replacement: Engineered as a direct bolt-on replacement for the original pump, minimizing downtime and simplifying installation.
- Optimized Performance: Restores proper fuel injection timing and pressure, improving combustion efficiency and reducing emissions.
- Reliable Warranty: Backed by a 6-month warranty, providing peace of mind for your fleet maintenance operations.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Type | Fuel Injection Pump |
| Condition | Remanufactured |
| OEM Number(s) | 317-8021, 3178021, 10R-7660, 10R7660, 2641A312 |
| Engine Application | Caterpillar C6.6, 320D |
| Size | Standard Size |
| Quality | 100% Professional Tested |
| Packing | Neutral Package (Single item) |
| Package Dimensions | 45 x 45 x 45 cm |
| Gross Weight | 20.000 kg |
| Warranty | 6 Months |
| Delivery Time | 3-7 Days |
| Payment Terms | T/T, Western Union, PayPal |
OEM Cross-Reference
This fuel injection pump is a direct replacement for the following original equipment manufacturer (OEM) part numbers:
- Caterpillar: 317-8021, 3178021, 10R-7660, 10R7660
- Alternative: 2641A312
Please verify your existing part number against this list to ensure compatibility before ordering.
Compatibility
This pump is specifically designed for use in the following engine and vehicle models:
- Engine: Caterpillar C6.6 Diesel Engine
- Vehicle/Equipment: Caterpillar 320D Excavator
- Application: Common Rail Fuel Injection System
Note: Always confirm compatibility with your specific engine serial number and equipment model year. This pump is intended for diesel engines only.
Global Supply & Distribution
We are a dedicated supplier to the global heavy machinery aftermarket, offering efficient logistics to support B2B customers worldwide.
- Worldwide Shipping: Fast and reliable shipping to all continents, including North America, South America, Europe, Asia-Pacific, the Middle East, and Africa.
- Major Ports: Expedited delivery to major ports and industrial hubs like Houston, Rotterdam, Singapore, and Dubai.
- Export Expertise: Experienced in international trade documentation and customs clearance for smooth transactions.
- Inventory Ready: Stock available for immediate dispatch, with a standard delivery time of 3-7 business days.
Quality Assurance
Our commitment to quality ensures that every component performs reliably in the field.
- Testing: Each pump undergoes a rigorous 100% professional test to verify fuel pressure, flow rate, and timing accuracy.
- Standards: Remanufactured using precision-machined components to meet strict OE tolerances.
- Warranty: All units are backed by a standard 6-month warranty against manufacturing defects.
- Packaging: Securely packed in neutral industrial packaging to prevent damage during transit.
FAQ
Q: Is this pump a direct bolt-on replacement for my Caterpillar 320D?
A: Yes, this remanufactured pump (OEM 317-8021 / 10R-7660) is designed as a direct replacement for the original unit on the C6.6 engine found in the 320D excavator. It requires no modifications for installation. However, we always recommend comparing the physical pump and your engine’s serial number for absolute certainty.
Q: What is included in the remanufacturing process?
A: The remanufacturing process involves complete disassembly, cleaning, and inspection of all core components. Worn parts like seals, bearings, and plungers are replaced with new, OE-quality parts. The pump is then reassembled and calibrated on a test bench to ensure it meets factory specifications for fuel pressure and delivery.
Q: Do you offer technical support for installation or troubleshooting?
A: While we do not provide on-site installation services, our team can offer general technical guidance and answer questions about compatibility. We recommend that installation be performed by a qualified diesel mechanic familiar with Caterpillar common rail systems to ensure proper setup and avoid 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 .
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
Caterpillar C6.6 320D Remanufactured Common Rail Diesel Fuel Injection Pump 317-8021 10R-7660
Send one clear inquiry and we will reply with quotation, lead time, and fitment confirmation.
- OEM number is included automatically when available.
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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.