Komatsu 6D105 Piston Ring Set 6137-31-2040 6136-31-2030 | Diesel Engine Parts

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.