Product Overview

This high-quality MW Series plunger, identified by OEM number 2418455139 (also known as 2455-139 / 2455139 / 2 418 455 139), is a precision-engineered component designed for the fuel injection systems of various diesel engines. Manufactured to strict OE standards, it ensures optimal fuel metering and injection pressure for improved engine performance and fuel efficiency. Ideal for the global aftermarket, this part is available for fast worldwide shipping, serving major markets including North America, Europe, Southeast Asia, the Middle East, and South America.

Key Features & Benefits

• Precision Engineering: Manufactured with tight tolerances to ensure a perfect seal and consistent fuel delivery, reducing wear on the pump assembly.
• Durable Material: Constructed from high-grade alloy steel with a hardened surface for exceptional resistance to wear, corrosion, and cavitation, extending service life.
• Direct OE Replacement: Exact match to the original Bosch specification (2 418 455 139), guaranteeing a seamless fit and reliable operation without modifications.
• Enhanced Performance: Restores original pump efficiency, improves cold starting, and reduces fuel consumption and emissions.
• Rigorous Testing: Each plunger undergoes strict quality control checks for dimensional accuracy, surface finish, and pressure integrity before shipment.

Technical Specifications

OEM Cross-Reference

This plunger is a direct replacement for the following OE and reference numbers:

• Bosch: 2 418 455 139, 2418455139
• Alternative Part Numbers: 2455-139, 2455139, 2455/139

Compatibility

This MW Series plunger is designed for use in Bosch in-line fuel injection pumps (PES/PE/VE types) commonly found in:

• Engine Applications: Industrial diesel engines, agricultural tractors, construction machinery, and generator sets.
• Vehicle Models: Commonly used in older generation trucks, buses, and off-highway equipment. (Specific fitment verification with your pump model is recommended).

Global Supply & Distribution

• Worldwide Shipping: We ship via DHL, FedEx, EMS, TNT, and UPS to all major global destinations.
• Major Markets Served: North America, Europe (EU/UK), Asia-Pacific, Middle East (UAE, Saudi Arabia), Africa, and South America.
• Fast Delivery: Stock orders are processed and dispatched within 3-7 working days. Express shipping to major ports and industrial hubs is available.
• Export Experience: We are experienced in international trade, ensuring proper documentation and customs compliance for smooth global transactions.

Quality Assurance

• Manufacturing Standards: Produced in an ISO-certified facility in Shandong, China, following strict quality control processes.
• Testing: Each plunger is inspected for dimensional accuracy, surface hardness, and hydraulic performance to ensure it meets OE specifications.
• Warranty: Backed by a 6-month warranty against manufacturing defects. Our 24/7 customer service team is ready to assist with any technical inquiries.

FAQ

Q: How do I verify if this plunger (2418455139) is compatible with my injection pump?

A: First, check the model number on your injection pump’s nameplate. This MW series plunger is typically used in Bosch PES/PE pumps. The most accurate method is to cross-reference your existing plunger’s part number (e.g., 2455-139) with our listing. If you are unsure, please provide the pump model number (e.g., PES6A95D) and the engine model to our support team for verification.

Q: What is the installation procedure for this plunger?

A: Installation requires mechanical precision. The plunger and barrel are a matched set and must be installed together. Ensure the work area is extremely clean. Lubricate with clean diesel fuel before insertion. The plunger must slide freely without binding. We recommend installation by a qualified diesel injection technician to avoid damage to the pump or engine.

Q: What maintenance is required for the fuel injection pump after replacing the plunger?

A: After replacing the plunger, it is crucial to prime the fuel system to remove all air. Check and replace the fuel filter if necessary. Inspect the delivery valve and the pump’s internal components for wear. After installation, the pump’s static timing must be checked and adjusted according to the engine manufacturer’s specifications to ensure correct injection timing and optimal 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 .