Piston 6D110 Combustion Chamber 66mm 6138-32-2120 6138-32-2320 6138-32-2040 for Komatsu Engine Parts

Product Details

Product Overview

This high-quality piston assembly is specifically engineered for the Komatsu 6D110 diesel engine, featuring a precision-machined combustion chamber with a diameter of 66mm. This component is a direct replacement for a critical set of OEM part numbers: 6138-32-2120, 6138-32-2320, and 6138-32-2040.

Designed to restore original engine performance, this piston is a vital component for the combustion process. It is commonly utilized in heavy-duty machinery such as excavators, bulldozers, and loaders where the 6D110 engine is the prime mover. This part ensures a reliable seal within the cylinder, optimizing compression and fuel efficiency for demanding work cycles.

As a direct OEM-size replacement, this piston guarantees a precise fit within the engine block without the need for modifications, making it an ideal choice for scheduled overhauls or emergency repairs in the field.

Key Features & Benefits

• Precision Combustion Chamber: The 66mm combustion bowl is machined to exact OEM specifications, ensuring optimal fuel-air mixing and efficient power generation.
• OEM Cross-Reference Fit: Directly replaces part numbers 6138-32-2120, 6138-32-2320, and 6138-32-2040, providing high confidence in fitment for 6D110 engines.
• Durable Construction: Manufactured from high-strength alloy materials to withstand extreme temperatures and pressures within the diesel combustion cycle, reducing wear and extending service life.
• Reduced Downtime: As an OEM-size component, it simplifies the installation process, allowing for quicker engine rebuilds and minimizing equipment downtime on job sites.
• Versatile Application: Suitable for a wide range of Komatsu machinery including excavators, loaders, bulldozers, and other industrial equipment powered by the 6D110 engine.

Technical Specifications

OEM Cross-Reference

This piston is a direct replacement for the following genuine Komatsu part numbers. Please verify your existing part number against this list before ordering.

• 6138-32-2120
• 6138-32-2320
• 6138-32-2040

Note: While these are the primary cross-references, this piston may also be compatible with other variants of the 6D110 engine. Always confirm the combustion chamber diameter (66mm) and engine model for a perfect match.

Compatibility

This piston is specifically designed for the Komatsu 6D110 diesel engine. It is commonly used for the following applications:

• Excavators
• Bulldozers
• Loaders
• Forklifts
• Trucks
• Buses
• Other Industrial Machinery

Global Supply & Distribution

We maintain a robust global supply chain to ensure fast and reliable delivery to our B2B partners worldwide. Our strategic location in Guangdong, China, provides excellent access to major international shipping ports.

We serve key markets including North America, Europe, Asia-Pacific, the Middle East, Africa, and South America. We have extensive experience exporting to industrial hubs and can handle logistics for urgent orders, ensuring your equipment gets back to work with minimal delay.

Our export documentation and packaging are compliant with international trade standards, providing a seamless purchasing experience for importers, distributors, and fleet managers.

Quality Assurance

Every piston undergoes rigorous quality control procedures to meet high industry standards. We provide a Machinery Test Report and a Video Outgoing Inspection to verify the product’s specifications and finish before shipment.

This product is backed by a 6-month warranty against manufacturing defects, giving you confidence in your investment. Our manufacturing processes focus on dimensional accuracy and material integrity to ensure the piston performs reliably under the harsh conditions of heavy equipment operation.

FAQ

Q1: How can I confirm this piston fits my specific Komatsu engine?
A: First, verify your engine model is a 6D110. Second, locate the part number on your existing piston, typically stamped on the piston crown or skirt. If the number is 6138-32-2120, 6138-32-2320, or 6138-32-2040, this part is a direct match. Also, measure the combustion chamber diameter; it should be 66mm.

Q2: Does this piston come with piston rings, and what is the installation procedure?
A: This listing is for the piston assembly only (including the combustion chamber). Piston rings are typically sold separately. During installation, ensure the piston is clean and lubricated with engine oil. Use a piston ring compressor to install the assembly into the cylinder bore, taking care to align the ring gaps correctly (not in line with the piston pin or thrust faces). Always refer to the Komatsu service manual for specific torque values and clearance specifications.

Q3: What is the recommended maintenance for this piston to maximize its lifespan?
A: The longevity of the piston is directly linked to the health of the entire fuel and air intake system. Ensure the fuel injectors are functioning correctly to avoid uneven combustion. Regularly replace air and fuel filters to prevent abrasive particles from entering the cylinder. Maintain proper engine oil levels and change intervals. During operation, avoid sustained over-revving or excessive load conditions, which can cause thermal stress and premature wear.