Product Overview

This high-precision Fuel Injection Pump Plunger & Barrel Element (Part No. 6N7527) is a critical component for the fuel delivery system of Caterpillar D333C and 3306 diesel engines. Manufactured to strict OEM specifications, this plunger and barrel set ensures optimal fuel metering, high injection pressure, and efficient combustion. Sourced from a specialized facility in Shandong, China, we serve a global B2B clientele, providing reliable replacement parts for heavy machinery and industrial applications across North America, Europe, Asia-Pacific, and the Middle East.

Key Features & Benefits

• OEM Quality Fitment: Direct replacement for Caterpillar part number 6N7527, ensuring seamless integration without modifications.
• Superior Durability: Manufactured from high-speed steel with advanced hardening processes to resist wear and extend service life under high-pressure conditions.
• Precision Engineering: Features ultra-fine surface finishing and precise geometric tolerances for consistent fuel delivery and reduced fuel consumption.
• 100% Professional Testing: Every unit undergoes rigorous pressure and leakage testing to guarantee performance and reliability out of the box.
• Cost-Effective Solution: Provides a high-performance alternative to expensive OEM parts without compromising on quality or engine output.

Technical Specifications

OEM Cross-Reference

This plunger and barrel element is a direct cross-reference for the following OEM numbers:

• Caterpillar: 6N7527
• Alternative Markings: O1G1, 6N7527 Barrel

Note: Always verify the OEM number on your existing part before ordering to ensure compatibility.

Compatibility

• Engine Models: Caterpillar D333C, Caterpillar 3306
• Application: Diesel engine fuel injection pump systems
• Vehicle/Machine Type: Industrial engines, heavy-duty trucks, generator sets, and construction machinery utilizing these engine platforms.

Global Supply & Distribution

We specialize in the global distribution of diesel engine components. Our logistics network ensures fast and reliable delivery to major industrial hubs worldwide:

• North America: Los Angeles, Houston, Chicago, Toronto, Vancouver.
• Europe: Rotterdam, Hamburg, Antwerp, Felixstowe.
• Asia-Pacific: Singapore, Shanghai, Tokyo, Sydney, Busan.
• Middle East & Africa: Dubai, Jebel Ali, Jeddah, Durban.

We offer flexible shipping options including FOB, CIF, and DDP terms to meet your specific procurement needs. Our export team manages all customs documentation for a hassle-free transaction.

Quality Assurance

• Manufacturing Standard: Produced in ISO 9001 certified facilities with strict process controls.
• Testing: Each plunger and barrel set is tested for dimensional accuracy, surface hardness, and hydraulic seal integrity.
• Warranty: Backed by a 4-month warranty against manufacturing defects.
• Packaging: Individually packaged in protective foam to prevent damage during transit.

FAQ

Q1: Will this 6N7527 plunger fit my Caterpillar 3306 engine injection pump?
A: Yes, this part is specifically designed for the fuel injection pump on the Caterpillar 3306 engine. However, we recommend checking the existing part number on your plunger. If it reads “6N7527” or “O1G1”, this is the correct match. If your pump uses a different number, please contact us for cross-reference verification.

Q2: What is the installation process for this plunger and barrel element?
A: Installation requires precise mechanical knowledge of fuel injection systems. The plunger and barrel must be installed as a matched set. Ensure the fuel pump housing is clean, lubricate the new element with clean diesel fuel, and seat it carefully to avoid jamming. We recommend professional installation by a certified diesel mechanic to prevent damage to the pump or engine.

Q3: How can I maximize the lifespan of this fuel pump element?
A: To ensure longevity, always use clean, high-quality diesel fuel and replace your fuel filters according to the engine manufacturer’s schedule. Water and contaminants in the fuel are the primary causes of plunger wear. Regular maintenance of the fuel system will help the 6N7527 element maintain peak performance for thousands of operating hours.

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 .