Product Overview

This premium bearing set is engineered for the Mitsubishi 4M51 diesel engine, providing a critical replacement solution for industrial and heavy equipment applications. We specialize in the global supply of high-performance engine components, serving major markets across North America, Europe, Asia-Pacific, and the Middle East with reliable shipping and export compliance.

Key Features & Benefits

• Precision Engineering: Manufactured to exact OEM specifications for a perfect fit and optimal oil clearance, ensuring proper lubrication and engine longevity.
• Enhanced Durability: Constructed from high-grade materials designed to withstand extreme pressures and temperatures within the 4M51 engine block.
• Optimal Performance: Maintains crankshaft alignment and reduces friction, contributing to consistent engine power output and fuel efficiency.
• Complete Set Solution: Includes both main bearings and connecting rod bearings for a comprehensive engine overhaul, saving procurement time.
• Global Reliability: Backed by extensive export experience, ensuring parts meet the demands of diverse operating environments and international quality expectations.

Technical Specifications

OEM Cross-Reference

This part is a direct replacement for the original Mitsubishi component. The primary reference number is:

• Mitsubishi: ME990017

Always verify the part number against your engine’s service manual or existing components before purchase.

Compatibility

This bearing set is specifically designed for the Mitsubishi 4M51 diesel engine. This engine is commonly found in a range of Mitsubishi heavy machinery, including:

• Mitsubishi Excavators
• Mitsubishi Wheel Loaders
• Mitsubishi Forklifts
• Various industrial generator sets and power units

Compatibility spans models utilizing the 4M51 engine block. Please confirm your engine serial number for absolute fitment assurance.

Global Supply & Distribution

We are a trusted partner in the global heavy equipment aftermarket. Our logistics network ensures efficient delivery to key industrial regions worldwide.

• Worldwide Shipping: We export to all major markets, including North America (USA, Canada), Europe (UK, Germany, Netherlands), Asia-Pacific (Australia, Japan, Singapore), and the Middle East (UAE, Saudi Arabia).
• Fast Delivery: Consolidated shipments to major ports and logistics hubs for faster clearance and reduced inland transit times.
• Export Expertise: All documentation (commercial invoice, packing list, certificate of origin) is prepared to comply with international trade regulations for smooth customs processing.

Quality Assurance

Every component is sourced from certified manufacturers committed to excellence.

• Manufacturing Standards: Produced using advanced metallurgy and precision machining processes that meet or exceed original performance specifications.
• Rigorous Testing: Bearings undergo dimensional accuracy checks, surface finish analysis, and material hardness testing to ensure reliability under load.
• Warranty: Backed by a standard warranty against manufacturing defects. Contact our support team for specific warranty terms applicable to your region.

FAQ

Q1: Is this a complete set for a full engine rebuild?
A1: Yes, this ME990017 set includes both the main bearings (which support the crankshaft in the engine block) and the connecting rod bearings (which connect the rods to the crankshaft). It provides the necessary bearings for a complete bottom-end overhaul of the 4M51 engine.

Q2: How do I know if I need Standard (STD) size bearings?
A2: Standard size bearings are used when the engine crankshaft journals have not been machined or reground. If your crankshaft has been refurbished (e.g., ground 0.25mm undersize), you will require corresponding undersize bearings. Always measure the crankshaft journals with a micrometer before ordering or consult your machine’s service history.

Q3: What is the recommended installation procedure?
A3: Professional installation is critical. Always clean all engine components thoroughly, use proper lubrication during assembly, and torque all fasteners to the manufacturer’s specified values in the correct sequence. Incorrect installation can lead to premature bearing failure and severe engine damage.

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 .