Product Details

Product Overview

This high-quality Mitsubishi L200 Piston Ring Set (Part Number: Mn137979) is a direct replacement for the 4D56 diesel engine. Designed for B2B procurement, we offer global shipping with fast delivery to major ports and industrial centers across North America, Europe, Asia-Pacific, and the Middle East. Our inventory supports wholesale orders for distributors, repair shops, and fleet maintenance operations.

Key Features & Benefits

• OEM Specification: Manufactured to meet or exceed original Mitsubishi standards for precise fitment and reliable performance.
• Durable Material: Constructed from high-grade cast iron with advanced wear-resistant coatings to extend engine life.
• Enhanced Compression: Optimized ring profile ensures superior cylinder sealing, reducing blow-by and improving fuel efficiency.
• Low Friction Design: Reduces internal drag, lowering operating temperatures and minimizing component wear.
• Rigorous Testing: Each set undergoes dimensional and material hardness checks to guarantee consistency and reliability.

Technical Specifications

OEM Cross-Reference

This piston ring set is a direct replacement for the following OEM part numbers:

• Mn137979 (Mitsubishi)
• MD343457 (Alternative Mitsubishi OEM)
• ME223748 (Alternative Mitsubishi OEM)

Note: Always verify the original part number on your vehicle before purchasing.

Compatibility

This piston ring set is specifically designed for the Mitsubishi 4D56 diesel engine, commonly found in:

• Mitsubishi L200 / Triton (2005-2015)
• Mitsubishi Pajero / Montero Sport (4D56 variants)
• Mitsubishi Delica / Starwagon (4D56 equipped models)

Global Supply & Distribution

We serve a worldwide network of B2B clients with reliable logistics and competitive pricing. Our supply chain covers:

• North America: Fast delivery to Los Angeles, Houston, New York, and Toronto.
• Europe: Stock ready for Rotterdam, Hamburg, and Felixstowe.
• Asia-Pacific: Direct shipments to Singapore, Tokyo, and Sydney.
• Middle East & Africa: Efficient routes to Dubai, Jeddah, and Lagos.

We offer flexible shipping options (FOB/CIF/DDP) and can consolidate orders for bulk purchases. All export documentation and customs clearance support are provided.

Quality Assurance

• Standards: Manufactured in ISO 9001:2015 certified facilities.
• Warranty: 12-month warranty against manufacturing defects.
• Testing: 100% inspected for dimensional accuracy, hardness, and surface finish before dispatch.

FAQ

Q: Is the Mn137979 piston ring set compatible with the Mitsubishi 4D56 engine?
A: Yes, this set is engineered specifically for the 4D56 engine used in L200 and other Mitsubishi models. It matches OEM dimensions and material specifications for a direct fit.

Q: Do I need to replace all rings during an engine rebuild?
A: It is highly recommended to replace all rings (top, second, and oil control) as a set to ensure even wear and optimal compression. Reusing old rings can lead to oil consumption and reduced performance.

Q: What is the recommended installation procedure?
A: Installation should be performed by a qualified mechanic. Ensure the cylinder bores are properly honed and cleaned. Follow the engine manufacturer’s torque and gap specifications for each ring. We recommend using assembly lubricant during installation.

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 .