Product Details
Product Overview
This high-performance, remanufactured Common Rail Fuel Injector is engineered as a direct replacement for Caterpillar 3512B and 3516B industrial and marine diesel engines. Sourced from a leading supplier in Shandong, China, we specialize in the global distribution of critical engine components, serving major markets across North America, Europe, the Middle East, and Asia-Pacific. This injector is essential for maintaining optimal fuel efficiency, power output, and emissions control in demanding applications.
Key Features & Benefits
- Premium Remanufactured Quality: Each injector undergoes a complete remanufacturing process to restore OEM specifications, ensuring reliable performance and extended service life at a fraction of the cost of a new unit.
- Precision Engineered for Durability: Manufactured from high-grade steel components to withstand extreme pressures and temperatures within the common rail fuel system.
- Guaranteed Fit and Function: Designed as a 1:1 replacement, ensuring seamless integration with your Cat 3512B/3516B engine without modifications.
- Optimized Fuel Delivery: Ensures precise atomization of diesel fuel for complete combustion, maximizing engine power and minimizing harmful emissions.
- Cost-Effective Maintenance Solution: Ideal for repair and overhaul projects, providing a reliable alternative to help reduce downtime and operational costs.
Technical Specifications
| Specification | Detail |
|---|---|
| Primary Part Number | 250-1308 |
| Alternative Part Number | 10R-1280 |
| OE / OEM Number | 2501308 |
| Product Type | Common Rail Fuel Injector |
| Condition | Remanufactured |
| Primary Material | Steel |
| Application | Diesel Fuel Injection System |
| Warranty | 3 Months |
| Packing | Neutral / WX Packing |
| Minimum Order Quantity (MOQ) | 6 Pieces |
| Package Dimensions (Single) | 32 x 17 x 7 cm |
| Package Weight (Single) | 3.500 kg |
OEM Cross-Reference
This injector is a direct cross-reference for the following OEM part numbers:
- Caterpillar: 250-1308, 10R-1280
- OE Number: 2501308
Compatibility
This fuel injector is specifically designed for the following Caterpillar engine models, commonly found in heavy-duty mining equipment, power generation sets, and large marine vessels:
- Caterpillar 3512B Diesel Engine
- Caterpillar 3516B Diesel Engine
Note: Always verify your engine’s serial number and existing part numbers before purchase to ensure 100% compatibility.
Global Supply & Distribution
We are a trusted B2B exporter with extensive experience in international logistics and trade compliance. Our streamlined supply chain ensures efficient delivery to key industrial hubs worldwide.
- Worldwide Shipping: We ship to all major markets, including North America (USA, Canada), Europe (UK, Germany, Netherlands), the Middle East (UAE, Saudi Arabia), Asia-Pacific (Australia, Singapore), and South America.
- Fast Port-to-Port Delivery: Optimized logistics for fast delivery to major seaports and airports near industrial centers.
- Export-Ready Packaging: All parts are packed securely in neutral or standard export cartons (WX Packing) to ensure safe transit and simplify customs clearance.
Quality Assurance
Our commitment to quality ensures you receive a reliable component for critical engine systems.
- Rigorous Remanufacturing Process: Each injector is disassembled, cleaned, inspected, and rebuilt with new seals and critical wear components where necessary.
- Performance Testing: Units are tested to verify flow rates, spray patterns, and leak-down performance against original specifications.
- Backed by Warranty: This product is covered by a 3-month warranty from the date of delivery, supporting your operational confidence.
FAQ
Q1: Is this injector a direct “plug-and-play” replacement for my Caterpillar engine?
A1: Yes. This remanufactured injector is engineered to the exact specifications of the original Caterpillar part (250-1308 / 10R-1280). It is designed for direct installation into the 3512B and 3516B engines without requiring any modifications to the engine block or fuel rail.
Q2: What does “remanufactured” mean, and how does it differ from “new” or “used”?
A2: Remanufactured means a used core has been completely disassembled, professionally cleaned, and rebuilt to original OEM performance standards. Worn or non-spec components are replaced with new parts. This process restores like-new performance and reliability, offering a more sustainable and cost-effective solution compared to a new OEM injector, while providing far greater assurance than an untested used part.
Q3: What is the recommended maintenance when installing this injector?
A3: For optimal performance and longevity, we strongly recommend:
- Always replace the injector sealing washer(s) and any O-rings with new, genuine parts during installation.
- Ensure the fuel system is clean. Consider replacing the fuel filter(s) and priming the system to prevent contamination.
- After installation, it is good practice to perform an injector leak-off test or have a technician run a diagnostic to verify proper operation and balance across all cylinders.
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
Remanufactured Fuel Injector 250-1308 / 10R-1280 for Caterpillar 3512B & 3516B Engines
Send one clear inquiry and we will reply with quotation, lead time, and fitment confirmation.
- OEM number is included automatically when available.
- Add quantity, destination, and packing needs for a faster quote.
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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.