Product Overview

This high-precision Diesel Injection Pump Plunger (Part Number: 108-2104) is a critical component engineered specifically for Caterpillar 3306 and 3406 engine series. Manufactured to strict OEM specifications, this plunger element ensures optimal fuel delivery, combustion efficiency, and extended engine life. As a trusted supplier based in Shandong, China, we serve a global B2B clientele with fast, reliable shipping to major markets in North America, Europe, Asia-Pacific, and the Middle East.

Key Features & Benefits

• Premium Material: Constructed from high-speed steel (HSS) for exceptional wear resistance and durability under high-pressure injection conditions.
• Precision Engineering: Standard size with tight tolerances ensures a perfect seal and consistent fuel metering, reducing fuel consumption and emissions.
• 100% Professional Testing: Every unit undergoes rigorous quality checks to guarantee performance, reliability, and a leak-free fit.
• Direct Replacement: Designed for easy installation as a direct OEM replacement (OE No. 108-2104 / 1082104), minimizing downtime for repair or overhaul.
• Cost-Effective Solution: Factory-direct pricing provides a competitive advantage for wholesalers, distributors, and fleet maintenance operations.

Technical Specifications

OEM Cross-Reference

This plunger element is a direct replacement for the following OEM part numbers:

• Caterpillar OEM: 108-2104, 1082104

Compatibility

This injection pump plunger is specifically designed for use in the following Caterpillar engine models:

• Caterpillar 3306 (Diesel Engine)
• Caterpillar 3406 (Diesel Engine)

Application: Suitable for diesel fuel injection pumps used in heavy machinery, industrial generators, and on-highway trucks powered by these Cat engines. Please verify your existing pump plunger part number to confirm fitment.

Global Supply & Distribution

We are an experienced exporter with a robust global logistics network. Our capabilities include:

• Worldwide Shipping: Reliable delivery via sea, air, and express courier (DHL, FedEx, UPS, TNT).
• Major Markets Served: North America (USA, Canada, Mexico), Europe (Germany, UK, Netherlands, France), Asia-Pacific (Australia, Japan, Singapore), Middle East (UAE, Saudi Arabia, Qatar), Africa, and South America.
• Fast Lead Times: Standard stock items ship within 3-7 business days to major ports like Los Angeles, Rotterdam, Dubai, and Shanghai.
• Trade Compliance: We adhere to international trade standards and can provide necessary export documentation for customs clearance.

Quality Assurance

Our manufacturing process is dedicated to delivering reliable, long-lasting components:

• Standards: Produced in ISO-compliant facilities using advanced CNC machining and heat treatment processes.
• Testing: Each plunger is 100% professionally tested for dimensional accuracy, surface finish, and pressure integrity before packaging.
• Warranty: Backed by a 1-year warranty against manufacturing defects in material and workmanship.

FAQ

Q1: Is this plunger a direct replacement for my Caterpillar 3306 injection pump?

Yes, this part (108-2104) is a standard-size, direct replacement plunger element designed for Caterpillar 3306 and 3406 engines. It matches the OEM specifications for a precise fit. We recommend confirming your pump model and existing part number before ordering to ensure compatibility.

Q2: What is the recommended installation procedure for this pump plunger?

Installation should be performed by a qualified diesel technician. The plunger and barrel assembly must be kept scrupulously clean. Apply a small amount of clean diesel fuel or assembly lubricant during installation. Ensure the plunger aligns correctly with the pump camshaft and barrel. Incorrect installation can lead to pump seizure or poor performance.

Q3: How can I ensure a long service life from this plunger element?

Use high-quality, clean diesel fuel and maintain your fuel filtration system rigorously. Contaminants are the primary cause of plunger wear. Adhere to the engine manufacturer’s recommended service intervals for the fuel injection pump, and always replace the plunger and barrel as a matched set.

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 .