Product Overview

This high-precision Diesel Fuel Injection Pump Plunger and Barrel Assembly (Part Number: 134173-3020 / S30) is a critical component for MW series fuel injection pumps used in heavy-duty diesel engines. Manufactured to strict OE standards, this plunger element ensures optimal fuel metering and pressure generation for efficient combustion. We are a leading global supplier, serving major markets across North America, Europe, South America, the Middle East, and Southeast Asia, offering reliable shipping from any Chinese port.

Key Features & Benefits

• Premium Material: Constructed from High-Speed Steel for exceptional wear resistance and longevity under high-pressure conditions.
• Precision Engineering: Manufactured with tight tolerances to ensure accurate fuel delivery, improving engine performance and reducing emissions.
• 100% Professional Tested: Every unit undergoes rigorous quality inspection to guarantee reliable operation and a leak-free seal.
• Direct Fit Replacement: Designed as a direct OE replacement for the MW series pump, simplifying installation and minimizing downtime.
• Reliable Supply: With a monthly supply capacity of 5,000 pieces, we can meet both small orders and large bulk requirements.

Technical Specifications

OEM Cross-Reference

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

• OEM Number: 134173-3020
• Alternative Number: S30

Please verify your specific pump model (MW series) to ensure compatibility.

Compatibility

• Pump Model: MW Series Fuel Injection Pump
• Engine Type: Suitable for various diesel engines utilizing the MW pump platform in agricultural, industrial, and construction machinery.
• Vehicle Fitment: Designed for diesel cars and light-duty diesel applications.

Global Supply & Distribution

We offer comprehensive global logistics solutions to support your business operations:

• Shipping Ports: Flexible dispatch from any major Chinese port (e.g., Qingdao, Shanghai, Ningbo).
• Delivery Time: Fast processing with delivery in 3-7 days for in-stock items.
• Major Markets: We actively supply to North America, Europe, Asia-Pacific, the Middle East, Africa, and South America.
• Packaging: Industrial standard packaging (polyester bag + paper carton) to ensure safe transit, with custom packaging available upon request.
• Payment Options: We accept T/T, Western Union, and PayPal for transaction flexibility.

Quality Assurance

• Manufacturing Standards: Produced in Shandong, China, under strict quality control processes.
• Testing: Each unit undergoes 100% professional testing for dimensional accuracy and functional performance.
• Warranty: Backed by a 1-year warranty against manufacturing defects.

FAQ

Q: How can I confirm this plunger fits my specific injection pump?
A: Please verify your pump’s model number. This plunger is specifically designed for the MW series fuel injection pump. The primary reference numbers are 134173-3020 and S30. Cross-reference these numbers with your existing part to ensure a correct fit.

Q: What is the recommended installation procedure for this plunger and barrel set?
A: Installation should be performed by a qualified diesel technician. It is critical to ensure absolute cleanliness during installation, as any contamination can cause premature wear or pump failure. Follow the pump manufacturer’s service manual for correct torque specifications and timing procedures.

Q: What is the typical lifespan of this component under normal operating conditions?
A: The lifespan depends on fuel quality, operating environment, and maintenance. However, due to the use of high-speed steel and precision manufacturing, this plunger and barrel set offers excellent durability. Regular fuel filter changes and using clean, high-quality diesel fuel will maximize its service life.

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 .