Product Overview

This W39 Diesel Injection Pump Plunger Element is a high-precision component engineered for optimal fuel delivery in diesel engines. Manufactured in Shandong, China, this A Series pump plunger is designed to meet OE specifications (OEM NO: W39) and is suitable for a wide range of diesel car applications. We offer global shipping with fast delivery (3-7 days) to major industrial markets including North America, Europe, Asia-Pacific, the Middle East, and South America, ensuring reliable supply for B2B clients worldwide.

Key Features & Benefits

• Precision Engineering: Manufactured from High Speed Steel for superior wear resistance and long service life under high-pressure conditions.
• 100% Professional Tested: Each unit undergoes rigorous quality checks to ensure dimensional accuracy and reliable fuel injection performance.
• Standard Size Fitment: Designed as a standard size A Series pump plunger, ensuring seamless replacement and compatibility with existing injection pumps.
• Enhanced Durability: Built to withstand the demands of diesel engine operation, reducing downtime and maintenance costs.
• Reliable Supply: MOQ of 6 pieces with flexible payment terms (TT, Western Union, PayPal) and fast 3-7 day delivery for urgent orders.

Technical Specifications

OEM Cross-Reference

This W39 Pump Plunger Element is a direct replacement for the following OEM numbers:

• OEM NO: W39
• Alternative Part Numbers: Please verify compatibility with your injection pump model. This A Series plunger is designed for standard applications and may replace similar W39-spec parts.

Compatibility

This pump plunger is designed for use in diesel injection systems, specifically for A Series pumps. Common applications include:

• Engine Models: Suitable for various diesel engines requiring a W39 plunger element.
• Vehicle Applications: Diesel cars and light-duty diesel vehicles.
• Year Ranges: Compatible with models from the 1990s to present, depending on injection pump type. Always verify fitment with your pump model.

Global Supply & Distribution

We provide worldwide shipping with a focus on fast, reliable delivery to major industrial centers. Our logistics network supports:

• North America: Fast delivery to ports like Los Angeles, New York, and Houston for distribution across the USA, Canada, and Mexico.
• Europe: Efficient shipping to Rotterdam, Hamburg, and other key ports serving the EU market.
• Asia-Pacific: Direct routes to Singapore, Tokyo, and Sydney for regional distribution.
• Middle East & Africa: Reliable service to Dubai, Jeddah, and major African ports.
• South America: Shipping to Santos, Buenos Aires, and other industrial hubs.
• Export Experience: We specialize in B2B trade with expertise in customs documentation and international compliance, ensuring smooth transactions for global buyers.

Quality Assurance

• Manufacturing Standards: Produced in ISO-compliant facilities in Shandong, China, with strict quality control processes.
• Testing: Each plunger is 100% professionally tested for dimensional accuracy, surface finish, and pressure tolerance to ensure reliable performance.
• Warranty: Backed by a 6-month warranty against manufacturing defects, providing peace of mind for your operations.
• Material Integrity: High Speed Steel construction ensures resistance to wear and thermal stress, extending service life in harsh diesel environments.

FAQ

Q1: Is this W39 pump plunger compatible with all diesel injection pumps?
A1: This W39 plunger is specifically designed for A Series injection pumps. While it is a standard size, we recommend verifying compatibility with your pump model by checking the OEM number (W39) and pump series. For non-standard or specialized pumps, please contact us with your pump details for confirmation.

Q2: What installation precautions should I take?
A2: Ensure the plunger is installed in a clean, debris-free environment. Proper lubrication during installation is recommended to prevent scoring. We advise professional installation by a qualified diesel technician to maintain precise fuel metering and avoid damage to the pump housing. Always follow the manufacturer’s service manual for torque settings and alignment.

Q3: How do I maintain this pump plunger for optimal performance?
A3: Regular maintenance of the fuel system is key. Use clean, high-quality diesel fuel and replace fuel filters as recommended. The High Speed Steel construction offers excellent durability, but periodic inspection of the plunger and barrel assembly for wear is advised, especially in high-mileage applications. If you notice fuel delivery issues or rough engine operation, check the plunger for scoring or pitting and replace if necessary.

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 .