Product Overview

This high-quality Diesel Plunger & Barrel Assembly A43 (OEM 131151-2720) is a precision fuel injection pump element designed for Mitsubishi 6D20 and 6D22 heavy-duty diesel engines. Manufactured to OE specifications, this component ensures optimal fuel metering and injection pressure for reliable engine performance. Ideal for replacement and repair applications, our product serves a global B2B market with consistent shipments to North America, Europe, Southeast Asia, the Middle East, and Africa.

Key Features & Benefits

• Precision Engineering: Manufactured with high-grade alloy steel to ensure tight tolerances and extended service life.
• Superior Durability: Hardened and ground surfaces provide excellent resistance to wear and corrosion from diesel fuel.
• Direct Fitment: Standard size design ensures a seamless replacement without modifications, reducing downtime.
• Enhanced Fuel Efficiency: Restores original injection timing and pressure, improving combustion and reducing fuel consumption.
• Cost-Effective Solution: Offers a reliable OEM-quality alternative at a competitive price point for fleet maintenance.

Technical Specifications

OEM Cross-Reference

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

• Mitsubishi: 131151-2720
• Alternative Part Number: A43

Note: Always verify compatibility with your specific injection pump model before ordering.

Compatibility

• Engine Models: Mitsubishi 6D20, 6D22
• Vehicle Applications: Mitsubishi Fuso trucks and heavy machinery (e.g., The Great, FM, FP series)
• Year Range: Primarily 1980s-1990s (verify engine serial number for exact fitment)

Global Supply & Distribution

We maintain a robust global logistics network to support B2B procurement needs. Our standard delivery time is 3-7 working days via major carriers including DHL, UPS, FedEx, EMS, and TNT.

Major Markets Served:

• North America: USA, Canada, Mexico
• Europe: Germany, UK, Netherlands, Poland, France
• Asia-Pacific: Japan, South Korea, Australia, Indonesia, Thailand
• Middle East: UAE, Saudi Arabia, Qatar
• Africa & South America: Nigeria, Kenya, South Africa, Brazil, Chile

We offer flexible payment terms (T/T, Western Union, PayPal, Trade Assurance) and can arrange fast drop-shipping to industrial ports and inland depots.

Quality Assurance

• Manufacturing Standards: Produced under strict ISO-compliant processes in our Chinese facility.
• Testing: Each unit is factory-tested for dimensional accuracy, surface hardness, and hydraulic pressure resistance before shipment.
• Warranty: Backed by a 6-month warranty against manufacturing defects.

FAQ

Q1: Is this plunger compatible with my Mitsubishi 6D22 engine’s injection pump?
Yes, the A43/131151-2720 is the standard element for 6D20 and 6D22 engines. However, we recommend checking the model number on your existing pump element to ensure it matches the “A43” marking. If you have a different variant (e.g., A41, A44), please contact us for verification.

Q2: What is the installation procedure for this plunger and barrel set?
Installation requires mechanical expertise. The old element must be removed from the injection pump housing. Clean the bore thoroughly, lubricate the new plunger with clean diesel fuel, and insert it carefully to avoid binding. Proper torque of the retaining nut is critical. We advise having a qualified diesel technician perform the replacement to prevent pump damage.

Q3: How do I extend the service life of this injection pump element?
Use high-quality diesel fuel with proper filtration. Contaminated fuel is the primary cause of premature wear. Regularly replace fuel filters and check for water in the separator. For stored equipment, use a fuel stabilizer to prevent corrosion inside the pump.

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 .