Product Overview

This high-performance, remanufactured fuel injection pump (Part No. 384-0678 / 3840678) is engineered as a direct replacement for Caterpillar C9 diesel engines. Designed for durability and precise fuel delivery, it is an essential component for engine repair and performance restoration. We supply this critical part to a global network of distributors, heavy equipment repair shops, and fleet operators across North America, Europe, the Middle East, and Asia-Pacific, ensuring reliable performance in demanding industrial and construction applications.

Key Features & Benefits

• Premium Remanufactured Quality: Each pump undergoes a rigorous remanufacturing process to meet or exceed original performance specifications, ensuring reliable fuel pressure and injection timing.
• Corrosion-Resistant Construction: Manufactured with high-grade stainless steel components for enhanced durability and resistance to fuel corrosion, extending service life.
• Universal Fitment Design: Engineered for seamless integration as a direct replacement for the OEM part, minimizing installation time and complexity.
• Performance Restoration: Effectively restores engine power, fuel efficiency, and emission control by ensuring precise fuel metering to each cylinder.
• Cost-Effective Solution: Provides a reliable, high-quality alternative to purchasing a new OEM pump, offering significant savings without compromising on performance.

Technical Specifications

OEM Cross-Reference

This part is a direct interchange for the following OEM number:

• Caterpillar®: 3840678, 384-0678

Note: Always verify part number compatibility with your specific engine serial number before purchase.

Compatibility

This fuel injection pump is designed specifically for:

• Engine Model: Caterpillar C9 Diesel Engine.
• Typical Applications: Found in a wide range of Caterpillar machinery, including but not limited to medium-duty trucks, industrial power units, and construction equipment such as loaders, excavators, and generators that utilize the C9 powerplant.

Global Supply & Distribution

We are a specialized exporter of heavy-duty engine components with extensive experience in international logistics and trade compliance. Our supply chain is optimized for fast, reliable delivery to key global markets:

• Major Markets Served: North America (USA, Canada), European Union (Germany, UK, Poland, Netherlands), Asia-Pacific (Australia, Singapore, Japan), Middle East (UAE, Saudi Arabia), and South America.
• Efficient Logistics: We ship via air and sea freight to major ports and industrial hubs worldwide, including Los Angeles, Rotterdam, Hamburg, Singapore, and Jebel Ali. Door-to-door delivery options are available.
• B2B Expertise: We handle all export documentation, customs clearance, and compliance, ensuring a smooth transaction for wholesalers, distributors, and large-scale repair facilities.

Quality Assurance

Every pump is built to deliver OEM-level performance and reliability.

• Rigorous Remanufacturing Process: Each unit is completely disassembled, cleaned, inspected, and rebuilt with new seals, gaskets, and critical wear components as needed.
• Performance Testing: Post-remanufacturing, pumps are tested on calibrated benches to verify fuel delivery rates, pressure curves, and leak integrity meet strict specifications.
• Warranty Backed: This product is covered by a 3-month warranty from the date of delivery, covering defects in materials and workmanship.

FAQ

Q1: Is this a direct bolt-on replacement for my Caterpillar C9 engine?
A1: Yes. This 384-0678 pump is engineered as a direct OEM replacement. It is designed to match the original mounting points, fuel line connections, and drive coupling, ensuring a straightforward installation process for qualified technicians.

Q2: What does “remanufactured” mean, and how does it differ from “used”?
A2: Remanufactured means the core pump has been completely rebuilt to original operating specifications. Unlike a simple used part, it undergoes a comprehensive process including disassembly, cleaning, replacement of all wear items (seals, bearings, etc.), machining of critical surfaces, and final testing. This restores it to like-new performance and reliability.

Q3: Do you provide technical support for installation?
A3: While we recommend installation by a certified diesel technician familiar with Caterpillar C9 engines, we provide basic installation guidelines and part-specific documentation. For complex technical inquiries, our support team can assist with general fitment and specification questions.

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 .