6261-31-2130 Engine Piston Std For Komatsu 6d140 Saa6d140e-5 Excavator Pc650-8 Pc750-8 Wheel Loader

Product Details

Product Overview

This is a high-quality, brand new replacement engine piston, specifically designed for Komatsu heavy equipment. The piston carries the critical part number 6261-31-2130 (also referenced as 6261312130) and is manufactured to standard (STD) size specifications. It is a direct fit for the robust Komatsu 6D140 and SAA6D140E-5 diesel engines.

This piston is a core component for maintaining or restoring engine compression and power output. It is commonly used in demanding applications such as the Komatsu PC650-8 and PC750-8 excavators, as well as wheel loaders like the WA500. Designed for longevity, this piston is an ideal choice for B2B buyers seeking a reliable, drop-in replacement for engine overhauls and maintenance programs.

Key Features & Benefits

• Precision Fitment: Manufactured to OEM specifications (STD size) for a direct, hassle-free installation, reducing downtime during engine rebuilds.
• Superior Material Composition: Constructed from a high-strength aluminum alloy body with a steel insert, providing excellent thermal conductivity and resistance to high combustion pressures and wear.
• Complete Assembly: The piston comes with the piston body, clips, and pin retainers, ensuring you have all necessary components for a secure installation.
• 100% New Condition: Guaranteed brand new, not remanufactured, ensuring maximum service life and reliability from the first start-up.
• Verifiable Quality: Supported by a machinery test report and outgoing video inspection, confirming dimensional accuracy and quality control standards.

Technical Specifications

OEM Cross-Reference

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

• 6261-31-2130 (Primary OEM Number)
• 6261312130 (Alternate Format)

No other OEM cross-references are available in the provided product data. Please verify your engine’s serial number and existing piston part number for complete compatibility.

Compatibility

This piston is specifically designed for use in the following Komatsu equipment and engine configurations:

• Engine Models: Komatsu 6D140, SAA6D140E-5
• Excavators: Commonly used for Komatsu PC650-8, PC750-8, PC950-11
• Wheel Loaders: Komatsu WA500
• Other Applications: Dump trucks and rigid frame trucks such as the Komatsu HD325 and HM400 series

Note: Fitment is inferred from the provided application data. Always confirm compatibility by cross-referencing your engine’s serial number and the existing piston part number before purchase.

Global Supply & Distribution

We are an experienced exporter based in Guangdong, China, providing reliable supply chain solutions for the global B2B market. Our logistics network supports efficient worldwide shipping to major industrial centers, including:

• North America: Los Angeles, Houston, Chicago, Toronto
• Europe: Rotterdam, Hamburg, Antwerp, Felixstowe
• Asia-Pacific: Singapore, Busan, Tokyo, Sydney
• Middle East & Africa: Dubai, Jeddah, Durban

We offer fast, consolidated delivery options to major ports and can handle customs documentation and international trade compliance. Whether you need a single piece for a critical repair or bulk quantities for fleet maintenance, our supply chain is designed to meet your deadlines.

Quality Assurance

Every piston undergoes strict quality control procedures to ensure it meets or exceeds OEM performance standards. Our commitment to quality includes:

• Manufacturing Standards: Produced in ISO-certified facilities using precision casting and machining processes.
• Testing: A machinery test report is provided with each order to verify dimensional and material specifications.
• Inspection: Video outgoing inspection is available upon request, allowing you to visually verify the product before shipment.
• Warranty: Backed by a standard warranty period of 6 months to 1 year, providing peace of mind for your investment.

FAQ

Q: How can I verify that this piston (6261-31-2130) will fit my engine?
A: The best way to confirm fitment is to check the part number stamped on your existing piston. This product is specifically designed for the Komatsu 6D140 and SAA6D140E-5 engines. You should also measure the cylinder bore and piston diameter to ensure it matches the STD size specification. If your engine has been previously rebored to an oversize, this STD piston will not fit.

Q: What is included in the piston assembly?
A: The assembly includes the piston body itself, along with the necessary clips and pin retainers. Please note that piston rings and the wrist pin are typically sold separately. For a complete engine overhaul, you should order the piston rings (often sold as a set) and the wrist pin to ensure a perfect seal and connection to the connecting rod.

Q: What is the recommended installation procedure for this piston?
A: Installation should be performed by a qualified diesel mechanic. Key steps include: 1) Thoroughly cleaning the cylinder bore and piston. 2) Lubricating the piston and rings with clean engine oil. 3) Using a proper ring compressor to install the piston into the bore without damaging the rings. 4) Ensuring the piston is oriented correctly according to the engine’s service manual (usually indicated by an arrow or mark on the piston crown). 5) Torquing the connecting rod bolts to the manufacturer’s specifications.