Product Details

Product Overview

This high-quality piston ring set is specifically engineered for Komatsu 6D105 diesel engines, providing a direct replacement for OEM part numbers 6137-31-2040 and 6136-31-2030. Designed for heavy-duty performance in construction and mining machinery, this product ensures reliable compression and oil control. We are a global supplier with extensive distribution networks serving North America, Europe, Asia-Pacific, the Middle East, and South America, ensuring fast and reliable delivery to major industrial hubs.

Key Features & Benefits

• Premium Durability: Manufactured from high-grade alloy cast iron for exceptional wear resistance and long service life in demanding applications.
• Optimized Engine Performance: Precision-machined ring profiles ensure optimal cylinder sealing, reducing blow-by and maximizing horsepower.
• Superior Oil Control: Advanced oil ring design minimizes oil consumption and reduces carbon buildup, extending engine overhaul intervals.
• Corrosion Resistance: Phosphate or chrome surface treatment provides excellent protection against corrosion and scuffing during break-in.
• OEM Standard Fitment: Manufactured to meet or exceed original Komatsu specifications for a perfect, hassle-free installation.

Technical Specifications

OEM Cross-Reference

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

• 6137-31-2040
• 6136-31-2030

These numbers correspond to the standard ring set for the 6D105 engine platform. Please verify your engine code to ensure compatibility.

Compatibility

This product is designed for use in Komatsu machinery equipped with the 6D105 diesel engine. Common applications include:

• Komatsu PC200-6 / PC200-7 Excavators
• Komatsu D65-12 / D65-15 Bulldozers
• Komatsu WA300-3 Wheel Loaders
• Other industrial equipment utilizing the 6D105 engine platform

Note: Always cross-reference your engine serial number with the part numbers listed above before ordering.

Global Supply & Distribution

We operate a robust global logistics network to serve B2B clients worldwide. Our key capabilities include:

• Worldwide Shipping: Reliable air and sea freight options to all major ports, including Rotterdam, Singapore, Dubai, Houston, and Shanghai.
• Major Markets Served: North America, Europe, Southeast Asia, Middle East, Africa, and Oceania.
• Fast Delivery: Standard lead times of 5-7 business days for air freight; 15-25 days for sea freight to major industrial centers.
• Export Expertise: Experienced in international trade documentation, customs clearance, and compliance with local regulations.

Quality Assurance

We are committed to delivering parts that meet rigorous industry standards:

• Manufacturing Standards: Produced under ISO 9001 certified facilities with strict dimensional tolerances.
• Testing: Every batch undergoes hardness testing, tensile strength analysis, and visual inspection for surface defects.
• Warranty: All products come with a standard 6-month warranty against manufacturing defects (excluding installation errors or normal wear).

FAQ

Q1: Is this piston ring set compatible with the Komatsu 6D125 engine?

A: No. The 6137-31-2040 and 6136-31-2030 part numbers are specifically designed for the 6D105 engine model. The 6D125 uses different ring dimensions and profiles. Please verify your engine model before purchasing.

Q2: What is the recommended installation procedure for these rings?

A: We recommend professional installation by a qualified diesel mechanic. Key steps include: clean the piston grooves thoroughly, ensure ring gaps are staggered at 120 degrees, and lubricate rings with engine oil before assembly. Always use a ring compressor tool to avoid breakage. Torque specifications should follow the Komatsu service manual for the 6D105 engine.

Q3: How can I confirm the correct ring size for my engine rebuild?

A: The standard ring set (part number 6137-31-2040) is for standard bore cylinders. If your engine requires oversize rings due to cylinder wear, you will need a different part number (e.g., 6137-31-2041 for 0.50mm oversize). We recommend measuring your cylinder bore diameter with a micrometer before ordering to confirm if a standard or oversize set is needed.

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 .