Product Overview

This PW2 PW5 Diesel Fuel Pump Plunger and Barrel Element is a high-precision replacement part designed for MW series fuel injection pumps in diesel engines. Manufactured in Shandong, China, this component is essential for restoring optimal fuel delivery and engine performance. We supply to B2B clients globally, including North America, Europe, Asia-Pacific, the Middle East, and South America, offering fast shipping to major ports and industrial hubs.

Key Features & Benefits

• Precision Engineering: Manufactured from high-speed steel for exceptional wear resistance and dimensional stability under high-pressure conditions.
• 100% Professional Tested: Each plunger and barrel assembly is rigorously tested to ensure perfect sealing and consistent fuel metering.
• Direct Replacement: Designed as a direct OE replacement for PW2 and PW5 pump elements, ensuring seamless fitment and reliable operation.
• Enhanced Durability: High-quality materials and precise machining reduce friction and extend service life, minimizing downtime.
• Restored Engine Performance: Replaces worn components to restore fuel injection pressure, improve combustion efficiency, and reduce emissions.

Technical Specifications

OEM Cross-Reference

This plunger and barrel assembly is a direct replacement for the following OEM numbers:

• PW2 – Standard plunger element for MW series pumps
• PW5 – Standard plunger element for MW series pumps

Note: This part is designed as a universal replacement for these common element sizes. Please verify your pump model and plunger dimensions before ordering.

Compatibility

This plunger and barrel element is designed for use in:

• Fuel Injection Pumps: MW Series (Bosch-style in-line pumps)
• Engine Applications: Various diesel engines used in agricultural tractors, construction machinery, generators, and marine equipment.
• Vehicle Fitment: General diesel car and light-duty truck applications using MW-type injection pumps.

Please confirm your pump’s plunger diameter (PW2 or PW5) and series (MW) to ensure compatibility.

Global Supply & Distribution

We are a professional supplier of diesel engine parts with a robust global logistics network.

• Worldwide Shipping: We ship to all major regions including North America, South America, Europe, Africa, Asia-Pacific, and the Middle East.
• Fast Delivery: Standard delivery time is 3-7 days, with express options available for urgent orders.
• Major Ports Served: Our parts are shipped efficiently to major ports and industrial centers, including Los Angeles, Rotterdam, Dubai, Shanghai, and Singapore.
• Export Experience: We have extensive experience in international trade, ensuring all documentation and customs compliance are handled professionally.

Quality Assurance

• Manufacturing Standards: Produced in a facility with rigorous quality control processes using high-speed steel for superior wear resistance.
• Testing: Each unit undergoes a professional test to verify sealing, dimensional accuracy, and performance standards.
• Warranty: All products are backed by a 1-year warranty against manufacturing defects.

FAQ

Q: How do I know if my pump uses a PW2 or PW5 plunger element?
A: The identification is typically stamped on the side of the plunger or listed in your pump’s service manual. PW2 and PW5 refer to the plunger diameter (likely 2mm and 5mm increments in the MW series). You should measure the diameter of your existing plunger with a micrometer to confirm the correct size.

Q: Is professional installation required?
A: Yes. Replacing plunger and barrel elements is a high-precision task that requires cleanroom conditions and specialized tools. We strongly recommend installation by a qualified diesel injection technician to prevent contamination and ensure proper timing and fuel delivery.

Q: What maintenance is required after installing new plunger elements?
A: After installation, the injection pump should be re-calibrated on a test bench to ensure balanced fuel delivery across all cylinders. Use clean, high-quality diesel fuel and replace the fuel filter to protect the new components from contamination. Regular inspection of the fuel system is recommended.

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 .