Komatsu 6D140 Piston Ring Set 6211-31-2031 6212-31-2040 Engine Overhaul Repair Parts

Product Details

Product Overview

This is a high-quality Piston Ring Set designed for the Komatsu 6D140 diesel engine. As a direct replacement for OEM part numbers 6211-31-2031 and 6212-31-2040, this set is essential for engine overhaul and repair. We provide global shipping to major industrial markets, including North America, Europe, Asia-Pacific, the Middle East, and South America, ensuring fast and reliable delivery to your workshop or project site.

Key Features & Benefits

• Superior Durability: Manufactured from high-grade alloy cast iron, providing excellent wear resistance and long service life under heavy loads.
• Optimal Oil Control: Precision-engineered ring profile ensures proper oil scraping and compression sealing, reducing blow-by and oil consumption.
• Heat Resistance: Designed to withstand the extreme temperatures and pressures within the 6D140 combustion chamber.
• Direct Fitment: Precision machined to OEM specifications for a hassle-free installation without modification.
• Cost-Effective Repair: A critical component for a reliable engine rebuild, offering excellent value compared to OEM parts.

Technical Specifications

OEM Cross-Reference

This piston ring set directly replaces the following OEM part numbers:

• Komatsu: 6211-31-2031
• Komatsu: 6212-31-2040

Note: Always verify your engine’s serial number and existing part number to ensure correct fitment.

Compatibility

• Engine Model: Komatsu 6D140
• Typical Applications: Komatsu heavy equipment such as bulldozers (D155, D275), excavators (PC400, PC650), and dump trucks (HD465).

Global Supply & Distribution

We are a dedicated supplier of aftermarket engine parts with a robust global logistics network. Our services include:

• Worldwide Shipping: Reliable delivery to North America, Europe, Asia-Pacific, Middle East, Africa, and South America.
• Fast Delivery: Efficient processing and shipping to major ports and industrial centers.
• Export Expertise: Experienced in international trade documentation and customs clearance for smooth transactions.
• Bulk Orders: Competitive pricing available for wholesale and fleet maintenance requirements.

Quality Assurance

We are committed to providing high-quality replacement parts. Our quality assurance includes:

• Manufacturing Standards: Parts are produced in ISO 9001 certified facilities.
• Testing: Each batch undergoes dimensional and material testing to ensure compliance with OEM specifications.
• Warranty: This product is backed by a standard 12-month warranty against manufacturing defects.

FAQ

Q1: Will this piston ring set fit my Komatsu 6D140 engine?
A1: Yes, this set is specifically designed for the 6D140 engine. However, we recommend checking the existing part number on your old rings (6211-31-2031 or 6212-31-2040) to confirm compatibility with your specific engine variant and piston type.

Q2: What is included in this piston ring set?
A2: The set includes a complete set of rings for one cylinder: typically a top compression ring, second compression ring, and an oil control ring assembly. You will need to purchase a set for each cylinder in your 6-cylinder engine (6 sets total).

Q3: Do I need to replace the piston or cylinder liner when replacing the rings?
A3: While not always necessary, it is highly recommended to inspect the piston grooves and cylinder liner for wear. For a comprehensive overhaul, replacing the piston rings, liners, and pistons together ensures optimal performance and longevity. If the liner is glazed or worn, it should be honed or replaced.