Product Overview

This is a professionally remanufactured Fuel Injection Pump, referencing OEM numbers 3973228 and 6745-71-1170. Designed specifically for the Cummins QSC8.3L diesel engine, this pump is a direct replacement for applications in the Komatsu PC300-8 excavator. Our facility in Shandong, China, specializes in high-performance diesel injection components, serving a global B2B clientele across North America, Europe, Southeast Asia, and the Middle East. We ensure reliable supply chains and fast shipping to major industrial ports worldwide.

Key Features & Benefits

• Precision Remanufacturing: Restored to factory specifications using OEM-grade components for reliable fuel delivery and optimal engine performance.
• High-Performance Output: Ensures correct injection timing and pressure, maximizing fuel efficiency and reducing emissions for your QSC8.3L engine.
• Durability & Longevity: Built to withstand the high demands of heavy equipment operation, reducing downtime and maintenance costs.
• Direct Fitment: A true bolt-on replacement for the original pump, simplifying installation for your service team.
• Cost-Effective Solution: Provides OEM-quality performance at a fraction of the cost of a new unit, offering excellent value for fleet maintenance.

Technical Specifications

OEM Cross-Reference

This fuel injection pump is a direct cross-reference for the following OEM numbers:

• Cummins Part Number: 3973228
• Komatsu Part Number: 6745-71-1170

Compatibility

This pump is specifically designed for the following engine and equipment models:

• Engine: Cummins QSC8.3L Diesel Engine
• Excavator: Komatsu PC300-8
• Other Applications: May also be compatible with other heavy machinery utilizing the QSC8.3 engine platform. Please verify your specific engine model and existing part number before ordering.

Global Supply & Distribution

We are a dedicated supplier to the global aftermarket, offering efficient logistics to support your operations:

• Worldwide Shipping: We ship to all major continents, including North America, South America, Europe, Africa, and the Asia-Pacific region.
• Fast Delivery: Orders are processed quickly for shipment to major ports like Houston, Rotterdam, Shanghai, and Dubai.
• B2B Focus: We understand the needs of parts distributors, repair shops, and fleet managers, offering consistent stock and reliable lead times.
• Trade Compliance: Experienced in international export documentation and customs clearance.

Quality Assurance

• Manufacturing Standards: Our remanufacturing process follows strict quality control standards to ensure reliability and performance.
• Testing: Each pump is tested for fuel delivery, pressure, and timing accuracy before shipment.
• Warranty: This product is backed by a 3-month warranty against defects in materials and workmanship, giving you peace of mind for your repair.

FAQ

Q: Is this pump a direct replacement for the original part on my Komatsu PC300-8?
A: Yes, this pump is remanufactured to be a direct bolt-on replacement. It matches the OEM specifications for the Komatsu PC300-8 with a Cummins QSC8.3L engine. We recommend comparing your existing part number (3973228 or 6745-71-1170) to confirm fitment.

Q: What does “Remanufactured” mean for this fuel injection pump?
A: This pump has been fully disassembled, cleaned, and inspected. All worn or damaged internal components (such as plungers, barrels, and seals) have been replaced with new parts. It is then reassembled and tested to meet OEM performance standards, offering a reliable and cost-effective alternative to a new pump.

Q: What is the recommended procedure for installing this pump?
A: Installation should be performed by a qualified diesel technician. It is critical to ensure the engine is at Top Dead Center (TDC) on the compression stroke before installation. The injection timing must be set precisely according to the Cummins QSC8.3 service manual. We also recommend replacing the fuel filter and priming the fuel system after installation to prevent air locks. Incorrect installation can lead to poor engine performance or 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 .