Product Details

Product Overview

We are a leading supplier of premium diesel engine components for the global aftermarket. This high-quality piston ring set is specifically designed for the Mitsubishi K4D diesel engine, offering a direct replacement for OEM part numbers MM406600 and MM433050. Our products are exported worldwide, serving major markets in North America, Europe, Southeast Asia, and the Middle East, ensuring reliable performance for agricultural, industrial, and construction machinery.

Key Features & Benefits

• Premium Material: Manufactured from high-grade ductile iron and alloy steel for exceptional wear resistance and longevity.
• Precision Engineering: CNC-machined to exact OEM specifications (MM406600 / MM433050) for a perfect fit and optimal compression sealing.
• Enhanced Performance: Advanced ring profile reduces oil consumption and blow-by, maximizing engine efficiency and power output.
• Rigorous Testing: 100% inspected for tension, gap clearance, and surface finish to ensure consistent quality and reliability.
• Cost-Effective Solution: Aftermarket quality that meets or exceeds OEM standards at a competitive price point for B2B buyers.

Technical Specifications

OEM Cross-Reference

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

• Mitsubishi: MM406600, MM433050
• Alternative: Contact us for additional cross-references if your specific OEM number is not listed.

Compatibility

• Engine: Mitsubishi K4D (4-cylinder diesel engine)
• Common Applications: Forklifts, agricultural tractors, generator sets, and industrial machinery powered by the K4D engine.
• Year Range: Compatible with all production years of the K4D engine.

Global Supply & Distribution

We offer reliable worldwide shipping with fast delivery to major ports and industrial centers, including:

• North America: Los Angeles, Houston, New York, Toronto
• Europe: Rotterdam, Hamburg, Antwerp, Felixstowe
• Asia-Pacific: Shanghai, Singapore, Tokyo, Busan
• Middle East & Africa: Dubai, Jeddah, Durban
• Latin America: Santos, Callao, Manzanillo

With extensive export experience and full customs compliance, we ensure your order arrives safely and on time. Volume discounts and wholesale pricing are available for B2B customers and distributors.

Quality Assurance

• Certifications: ISO 9001:2015 certified manufacturing facility.
• Warranty: 12-month warranty against manufacturing defects.
• Testing: Each batch undergoes hardness, dimensional accuracy, and surface finish testing to guarantee performance.
• Standards: Produced in accordance with JIS (Japanese Industrial Standards) for diesel engine components.

FAQ

Q1: Is this piston ring set a direct fit for my Mitsubishi K4D engine?
Yes, this set is designed as a direct replacement for the Mitsubishi K4D engine. It matches the OEM specifications of part numbers MM406600 and MM433050. Always verify your engine model and existing part numbers to ensure compatibility.

Q2: Do you offer oversized piston rings for engine rebuilds?
Yes, we can supply oversized rings (e.g., 0.25mm, 0.50mm, 0.75mm, 1.00mm) upon request. Please contact our sales team with your specific requirements before placing an order.

Q3: What is the recommended installation procedure for these rings?
Professional installation is recommended. Ensure the cylinder bore is clean, deglazed, and within service limits. Install rings with the correct orientation (markings facing up) and stagger the ring gaps 120 degrees apart. Lubricate with engine oil during assembly. Refer to the Mitsubishi K4D service manual for detailed torque specifications and procedures.

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 .