
Product Overview
This is a genuine Caterpillar fuel injector pump, a critical component for the precise fuel delivery and optimal performance of C9.3 and E336e industrial and marine engines. We specialize in the global supply of genuine and high-quality aftermarket engine parts, serving major markets across North America, Europe, the Middle East, Asia-Pacific, and Africa. This part is essential for maintaining engine efficiency, power output, and emissions compliance.
Key Features & Benefits
- Genuine Quality: Manufactured to Caterpillar’s exacting OEM specifications, ensuring perfect fit, function, and reliability.
- Precision Fuel Metering: Delivers accurate fuel pressure and volume for optimal combustion, maximizing engine power and fuel economy.
- Enhanced Durability: Built with high-grade materials to withstand the high-pressure demands and harsh operating conditions of industrial engines.
- Restores Engine Performance: Directly addresses issues related to power loss, rough idling, poor acceleration, and excessive smoke.
- Reliable Supply: Sourced through authorized channels, guaranteeing authenticity and availability for your maintenance schedules.
Technical Specifications
| Specification | Detail |
|---|---|
| Primary Part Number | 511-7975 |
| Alternative Part Number | 5117975 |
| Engine Model | Caterpillar C9.3, E336e |
| Component Type | Fuel Injector Pump (Fuel Transfer Pump) |
| Compatibility | Industrial & Marine Engine Applications |
| Condition | New, Genuine OEM |
OEM Cross-Reference
This genuine Caterpillar part is supplied under the following OEM numbers. It is a direct replacement for these part numbers.
- Caterpillar: 511-7975, 5117975
Compatibility
This fuel injector pump is designed for use with the following Caterpillar engine models, commonly found in generator sets, industrial pumps, marine propulsion, and other heavy equipment.
- Engine Models: Caterpillar C9.3, E336e
- Application: Industrial Engines, Marine Auxiliary & Propulsion Engines
- Note: Always verify your engine’s serial number and existing part number before purchase to ensure correct fitment.
Global Supply & Distribution
We are a trusted global supplier for heavy equipment parts distributors, fleet operators, and marine service companies. Our logistics network ensures reliable delivery to key industrial hubs worldwide.
- Worldwide Shipping: We export to all major markets, including the USA, Canada, UK, Germany, UAE, Saudi Arabia, Singapore, Australia, and South Africa.
- Fast Port Delivery: Efficient shipping to major ports like Rotterdam, Los Angeles, Singapore, Jebel Ali, and Hamburg.
- Export Compliance: All shipments are handled with complete commercial invoices, packing lists, and compliance with international trade regulations for a smooth customs clearance process.
- Bulk Order Support: Dedicated support for container loads (FCL) and large wholesale orders with competitive landed costs.
Quality Assurance
We guarantee the authenticity and performance of every part we supply.
- OEM Standard: 100% genuine Caterpillar part, meeting all original factory specifications.
- Certification: Supplied with relevant documentation to verify authenticity.
- Warranty: Backed by a standard warranty against manufacturing defects. Please contact us for specific warranty terms.
- Inspection: All parts undergo visual and dimensional inspection prior to shipment to ensure they are free from damage.
FAQ
Q1: How can I confirm this pump is compatible with my specific C9.3 engine?
A1: The most reliable method is to cross-reference the part number currently installed on your engine. Match it with our listed OEM numbers (511-7975 or 5117975). Providing your engine’s serial number to our technical team can also ensure a perfect match.
Q2: What are the common symptoms of a failing fuel injector pump on a C9.3 engine?
A2: Key indicators include difficulty starting, loss of engine power, irregular engine speed or surging, increased fuel consumption, and excessive black or white exhaust smoke. Replacing a faulty pump with this genuine unit restores proper fuel pressure and engine performance.
Q3: Do you provide technical support for installation?
A3> While we supply the genuine component, installation should be performed by a qualified diesel technician familiar with Caterpillar fuel systems. We can provide general guidance and, upon request, source official Caterpillar service documentation for professional workshops.
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 .