Product Overview

This is a premium replacement piston set engineered for Mitsubishi 4D56 series diesel engines. Designed for durability and performance, this critical engine component is manufactured to meet or exceed original specifications. We supply B2B clients globally, with established logistics to major markets including North America, Europe, the Asia-Pacific region, and the Middle East, ensuring reliable delivery for your workshop or distribution needs.

Key Features & Benefits

• High-Quality Construction: Manufactured from premium-grade aluminum alloy for optimal strength-to-weight ratio and excellent thermal conductivity.
• Precision Engineering: CNC-machined to exact OEM tolerances, ensuring perfect fitment and smooth operation within the cylinder bore.
• Enhanced Durability: Features advanced skirt coating and robust ring grooves to reduce friction, minimize wear, and extend service life under high-compression diesel conditions.
• Performance Reliability: Maintains correct compression ratios and combustion chamber integrity for consistent engine power, fuel efficiency, and reduced emissions.
• Global Compliance: Produced for the international aftermarket, suitable for use in various climatic and operational conditions worldwide.

Technical Specifications

OEM Cross-Reference

This piston set directly replaces the following OEM part numbers:

• Mitsubishi: MD304838, MD304859

Note: Always verify the specific part number from your original engine or parts catalog for exact compatibility.

Compatibility

This piston is designed for the Mitsubishi 4D56 series of 2.5L turbo diesel engines. Common vehicle applications include, but are not limited to:

• Mitsubishi: Pajero/Montero, L200/Triton, L300, Delica
• Other Applications: Various industrial and generator sets utilizing the 4D56 engine platform.

Compatible with engine variants including 4D56, 4D56T (turbo), 4D56U, and 4D56DIT (direct injection turbo). Typical model years range from the late 1980s through the 2000s, depending on the market.

Global Supply & Distribution

We are a specialist supplier to the global automotive trade. Our operations are optimized for international B2B commerce:

• Worldwide Shipping: We export to all major markets via air and sea freight. Key destinations include the USA, Canada, Germany, UK, Australia, UAE, and Southeast Asia.
• Fast Delivery Network: Consolidated shipments to major ports (e.g., Los Angeles, Rotterdam, Singapore, Sydney) and direct logistics to industrial centers ensure timely delivery.
• Export Expertise: All documentation (commercial invoice, packing list, certificate of origin) is prepared professionally for smooth customs clearance in your country.
• Trade Compliance: Products are shipped in compliance with international trade regulations.

Quality Assurance

We partner with ISO-certified manufacturers to guarantee product integrity. Every piston undergoes rigorous quality control checks, including dimensional verification and visual inspection, to ensure it meets strict performance standards. This part is backed by a standard warranty, providing confidence for your business and end-users. Specific warranty terms are provided with your commercial invoice.

FAQ

Q1: Is this piston a direct replacement for my 4D56 engine, or will I need to modify the cylinder block?
A1: This is a direct OEM replacement piston. It is manufactured to the original specifications and dimensions. No modifications to the cylinder block are required, provided it is within standard wear limits. We always recommend measuring the cylinder bore and checking clearances during engine rebuild.

Q2: Does this piston set include piston rings, pins, and clips?
A2: This listing is for the piston itself. Piston rings, wrist pins, and circlips are typically sold separately. Please confirm the complete kit contents with our sales team or refer to the product images/description for what is included to ensure you order all necessary components for your rebuild.

Q3: Are these pistons suitable for performance upgrades or increased boost in turbocharged applications?
A3: These are high-quality standard replacement pistons designed to restore the engine to its original factory performance specifications. For significant performance upgrades, increased boost pressure, or altered compression ratios, we recommend consulting with a specialist in performance diesel engine components to select a piston designed for those specific stresses.

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 .