
Product Overview
This is a genuine-quality fuel injection pump plunger designed for Caterpillar 3306 diesel engines. As a leading supplier in the global heavy machinery aftermarket, we provide reliable engine components to major industrial markets worldwide, including North America, Europe, Asia-Pacific, and the Middle East. This critical part is essential for maintaining optimal fuel pressure and injection timing in demanding applications.
Key Features & Benefits
- Precision Engineering: Manufactured to exact OEM specifications for a perfect fit and reliable performance, ensuring proper fuel metering and engine efficiency.
- Superior Durability: Constructed from high-grade materials to withstand extreme pressures and resist wear, contributing to a longer service life for the entire fuel system.
- Optimal Engine Performance: Restores factory-level fuel delivery, promoting complete combustion, stable engine operation, and reduced emissions.
- Direct Replacement: Designed as a direct, bolt-on replacement for the original component, minimizing downtime during maintenance and repair.
Technical Specifications
| Specification | Detail |
|---|---|
| Primary Part Number | 6N7527 |
| Alternative Part Number | 1W6541 |
| OEM / Brand | For Caterpillar® |
| Engine Model | 3306 |
| Product Name | Fuel Injection Pump Plunger (Element) |
| Condition | Genuine-Quality / New |
| Place of Origin | Japan |
| Minimum Order Quantity (MOQ) | 1 Piece |
OEM Cross-Reference
This fuel pump plunger corresponds directly to the following OEM part numbers:
- Caterpillar®: 6N7527
- Caterpillar®: 1W6541
It is a direct replacement for these original parts in the specified applications.
Compatibility
This pump plunger is engineered for use with the Caterpillar 3306 diesel engine. This engine is commonly found in a range of heavy-duty equipment, including:
- Excavators
- Heavy-Duty Trucks
- Generator Sets
- Industrial and Construction Machinery
Always verify your engine’s specific model and existing part number before purchase to ensure correct fitment.
Global Supply & Distribution
We specialize in the international export of heavy equipment parts. Our logistics network ensures efficient shipping to key global markets:
- Worldwide Shipping: We ship to all major industrial regions, including North America (USA, Canada, Mexico), Europe (UK, Germany, Netherlands), Asia-Pacific (Australia, Singapore, Japan), and the Middle East (UAE, Saudi Arabia).
- Fast Delivery: Expedited shipping options are available to major ports and logistics hubs to minimize your equipment downtime.
- Export Expertise: All documentation is handled professionally for smooth customs clearance and compliance with international trade regulations.
Quality Assurance
We are committed to supplying parts that meet the highest standards of performance and reliability.
- Manufacturing Standard: Produced using precision tooling and high-quality materials, adhering to strict dimensional and material specifications.
- Warranty: Backed by a 6-month warranty from the date of purchase, covering defects in material and workmanship.
- Support: Comprehensive after-warranty support is available, including video technical support to assist with installation and troubleshooting.
FAQ
Q: How do I confirm this part is compatible with my specific Caterpillar 3306 engine?
A: The best method is to cross-reference the part number currently installed in your machine. This plunger replaces Caterpillar numbers 6N7527 and 1W6541. You can also verify your engine’s serial number and model against the compatibility list above.
Q: What are the signs that my fuel pump plunger needs replacement?
A: Common symptoms include hard starting, loss of engine power, rough idle, excessive black or white smoke from the exhaust, and inconsistent engine RPM. A loss of fuel pressure is a key indicator of plunger or fuel pump wear.
Q: Is technical support available for installation?
A> Yes. We provide video technical support to guide qualified technicians through the installation process. We recommend that installation and calibration be performed by a certified mechanic familiar with diesel fuel injection systems, as precise adjustment is critical for performance.
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 .