Product Overview

This is a genuine-quality Piston Ring Assembly designed for Komatsu 4D94 series diesel engines. As a leading supplier of heavy-duty engine components, we provide reliable spare parts for the global construction, industrial, and power generation sectors. This part is manufactured to exact OEM specifications, ensuring a perfect fit and optimal engine performance for your Komatsu machinery.

Key Features & Benefits

• Precision Engineered: Manufactured to strict OEM tolerances for a perfect seal and correct cylinder wall contact, ensuring proper compression and oil control.
• Enhanced Durability: Made from high-grade materials to withstand the high temperatures and pressures within a diesel combustion chamber, promoting long service life.
• Optimal Performance: Restores engine compression, reduces oil consumption, and minimizes blow-by gases, leading to improved fuel efficiency and power output.
• Complete Assembly: Sold as a full set for one cylinder, simplifying the ordering process and ensuring all necessary components are included for a proper rebuild.
• Global Compliance: Packaged and documented for seamless international shipping and customs clearance.

Technical Specifications

OEM Cross-Reference

This piston ring assembly corresponds directly to the following OEM part number:

• Komatsu: 6142-32-2020

Note: Always verify the part number from your old component or engine service manual before ordering to ensure compatibility.

Compatibility

This Piston Ring Assembly is specifically designed for Komatsu engines using the 4D94 engine block. These engines are commonly found in a wide range of Komatsu equipment, including:

• Application: Construction Machinery, Industrial Power Units, Agricultural Equipment, Generator Sets (Gensets), Marine Auxiliary Engines, Material Handling Equipment.
• Primary Use: Ideal for engine overhaul, rebuild, and maintenance projects to restore engine performance and reliability.

Global Supply & Distribution

We specialize in the export of heavy-duty engine parts to a worldwide network of distributors, workshops, and direct end-users. Our streamlined logistics ensure efficient delivery to major industrial hubs and ports globally.

• Major Markets Served: North America, European Union, United Kingdom, Asia-Pacific (Australia, Japan, Southeast Asia), Middle East, Africa, and South America.
• Shipping: We support all standard international shipping methods (Air, Sea, Express Courier) with full documentation (Commercial Invoice, Packing List, Certificate of Origin) for smooth customs processing.
• Export Expertise: With extensive experience in B2B international trade, we ensure all shipments comply with relevant export regulations and are prepared for efficient handling.

Quality Assurance

We are committed to supplying parts that meet the demanding requirements of the heavy machinery industry.

• Manufacturing Standard: Produced using advanced manufacturing techniques to replicate OEM design and material specifications.
• Warranty: Backed by a 6-month warranty against manufacturing defects from the date of purchase.
• Testing & Documentation: Critical parts are subject to quality checks. A machinery test report is available, and video outgoing-inspection can be provided upon request to verify product condition before shipment.

FAQ

Q1: How do I confirm this piston ring set will fit my specific Komatsu 4D94 engine?
A1: The primary identifier is the OEM part number 6142-32-2020. We strongly recommend matching this number with the one from your engine’s service parts catalog or from the original part being replaced. You can also provide your engine’s full model and serial number for our technical team to double-check compatibility.

Q2: Is this a single ring or a complete set per cylinder?
A2: This listing is for a complete Piston Ring Assembly (Assy) for one cylinder. It includes all the necessary rings (e.g., compression rings, oil control ring) required for rebuilding one piston.

Q3: What documentation is provided with the shipment for customs and quality verification?
A3: All international shipments include a professional Commercial Invoice, Packing List, and Certificate of Origin. A machinery test report is provided as standard. For additional quality assurance, a video outgoing-inspection can be arranged prior to shipment to visually confirm the parts and packaging.

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 .