Product Details

Product Overview

This is a premium quality, aftermarket engine piston designed for a range of Komatsu excavator models. Manufactured to meet or exceed OEM specifications, this piston is a direct replacement for part number 6137-32-2110 and is compatible with Komatsu S4D105-5A, S6D105-1, and 6D105 engine families. Ideal for heavy-duty applications, this component supports global B2B supply chains, serving markets across North America, Europe, Southeast Asia, and the Middle East.

Key Features & Benefits

• High Durability: Constructed from high-strength aluminum alloy to withstand extreme combustion pressures and thermal loads.
• Precision Engineering: CNC-machined for exact tolerances, ensuring a perfect fit and optimal compression.
• Enhanced Performance: Reduces friction and improves fuel efficiency, extending engine life.
• Direct Fitment: Drop-in replacement with no modifications required, saving installation time and labor costs.
• Rigorous Testing: Undergoes strict quality control, including dimensional inspection and material hardness tests.

Technical Specifications

OEM Cross-Reference

This piston is a direct replacement for the following OEM numbers:

• 6137-32-2110 (Original Komatsu Part Number)
• 6137-32-2111 (Alternative fitment variant)
• Cross-references to 6137-31-2100 (older series, verify compatibility)

Note: Always confirm your engine serial number for exact match.

Compatibility

This piston is specifically designed for Komatsu excavator models powered by the 6D105 engine series:

• Komatsu PC100-1 (Hydraulic Excavator)
• Komatsu PC100-2 (Hydraulic Excavator)
• Komatsu PC120-2 (Hydraulic Excavator)
• Komatsu PW100-1 (Wheeled Excavator)

Engine applications: S4D105-5A, S4D105-5B, S6D105-1, and 6D105.

Global Supply & Distribution

• Worldwide Shipping: We ship to major ports worldwide including Rotterdam, Los Angeles, Shanghai, Dubai, and Singapore.
• Key Markets: North America, Western Europe, Southeast Asia, Middle East, and Oceania.
• Fast Delivery: Orders processed within 24 hours; express shipping available for urgent requirements.
• Trade Compliance: Full export documentation provided; compliant with international trade regulations.

Quality Assurance

• Certifications: ISO 9001:2015 certified manufacturing facility.
• Warranty: 12-month warranty against manufacturing defects under normal operating conditions.
• Testing: 100% dimensional inspection, hardness testing, and surface finish verification before shipment.

FAQ

Q1: Is this piston a direct replacement for the OEM part 6137-32-2110 on my Komatsu PC120-2?

Yes, this piston is manufactured as a direct aftermarket replacement for OEM part 6137-32-2110. It is designed to fit the S6D105-1 engine found in the PC120-2 excavator without any modifications. We recommend verifying your engine serial number for absolute compatibility.

Q2: What is the recommended installation procedure for this piston?

Ensure the cylinder bore is clean and within specification. Lubricate the piston and rings with engine oil before installation. Use a ring compressor to fit the piston into the bore. Torque the connecting rod bolts to the manufacturer’s specification (typically 80-90 Nm for this engine series). Always replace the piston rings and circlips with new ones during installation.

Q3: How can I maximize the service life of this piston?

Use high-quality engine oil with the correct viscosity (SAE 15W-40 or 20W-50 recommended for Komatsu 6D105 engines). Ensure the cooling system is functioning correctly to prevent overheating. Perform regular air filter maintenance to prevent abrasive dust from entering the combustion chamber. Follow the OEM maintenance schedule for piston inspections every 5000 operating hours.

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 .