Product Overview

This high-precision cylinder liner is engineered for the reliable repair and overhaul of Mitsubishi 4D55 and 4D56 series diesel engines. As a trusted global supplier, we ship directly from our manufacturing hub in Guangdong, China, to B2B clients and distributors worldwide, serving key markets in North America, Europe, the Middle East, Asia-Pacific, and Africa. This part is essential for restoring engine compression and longevity in a wide range of industrial and vehicular applications.

Key Features & Benefits

• Precision Engineering: Manufactured to exact OEM dimensions (OEM Size) for a perfect fit and optimal engine performance, ensuring correct piston clearance and oil control.
• Superior Durability: Made from high-grade cast iron alloy, offering excellent wear resistance, heat dissipation, and longevity under demanding diesel engine conditions.
• Enhanced Performance: Restores cylinder bore integrity, maximizing compression, reducing blow-by, and improving fuel efficiency and power output.
• Rigorous Quality Control: Each liner undergoes stringent machinery testing and video outgoing-inspection to guarantee dimensional accuracy and surface finish before shipment.
• Global Compliance Ready: Packaged for international export in protective plastic bags, boxes, and cartons, ensuring parts arrive in perfect condition.

Technical Specifications

OEM Cross-Reference

This cylinder liner is a direct replacement for the following OEM part numbers:

• Mitsubishi: MD168963, MD050430

Note: OEM service is available for bulk orders. Contact our sales team for custom manufacturing inquiries.

Compatibility

This cylinder liner is designed for Mitsubishi 4D55 and 4D56 series diesel engines. These engines are commonly found in a broad spectrum of machinery, including:

• Construction Equipment: Excavators, loaders, compactors.
• Industrial & Agricultural Machinery: Tractors, forklifts, irrigation pumps.
• Power Generation: Diesel generators (Gensets).
• Marine Applications: Small marine auxiliary engines.
• Material Handling: Various industrial vehicles.

Global Supply & Distribution

We specialize in the international B2B supply of critical engine components. Our established logistics network ensures efficient delivery to major industrial hubs and ports globally.

• Worldwide Shipping: We export to all major continents, including North America (USA, Canada, Mexico), Europe (UK, Germany, Poland), the Middle East (UAE, Saudi Arabia), Asia-Pacific (Australia, Singapore, Japan), and South America.
• Fast Delivery: Consolidated sea freight and air freight options available for timely delivery to your nearest port or directly to your warehouse.
• Export Expertise: Over a decade of experience in international trade, with full compliance documentation (Commercial Invoice, Packing List, Certificate of Origin) for smooth customs clearance.

Quality Assurance

Our commitment to quality ensures you receive reliable parts that meet professional repair standards.

• Manufacturing Standards: Produced in a certified facility using advanced CNC machining and honing processes for precise tolerances and superior surface finish.
• Comprehensive Warranty: Backed by a 6-month warranty against manufacturing defects from the date of purchase.
• Testing & Inspection: Every batch is subject to a Machinery Test Report, and random units undergo video-recorded outgoing inspection to verify critical dimensions, hardness, and visual quality.

FAQ

Q1: Is this cylinder liner a direct fit for my Mitsubishi 4D56T turbo engine?
A1: Yes. This liner is fully compatible with the naturally aspirated 4D55, 4D56, and the turbocharged 4D56T engine variants. It is manufactured to the exact OEM specification to ensure proper fitment in all these models.

Q2: What preparation is required before installing this new liner?
A2: For optimal performance, the engine block cylinder bore must be professionally machined (bored/honed) to the correct size and finish to match the new liner’s outer diameter (OD). The liner itself should be clean and free of debris. Always follow the engine manufacturer’s specific installation procedures regarding press-fit tolerances and sealing.

Q3: Do you offer technical support or compatibility verification for specific machinery models?
A3: Absolutely. Our technical sales team can assist with compatibility checks for your specific equipment model and serial number. Please have your engine details or old part number ready when you contact us to ensure you receive the correct component for your repair project.

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 .