Komatsu Excavator S4D105/S6D105 Engine Piston Set OEM 6137-32-2110 for PC100/PC120

Product Details

Product Overview

This high-quality engine piston set is specifically engineered for Komatsu excavator models powered by the S4D105, S4D105-5A, 6D105, S6D105, and S6D105-1 diesel engines. Designed to OEM specification 6137-32-2110, this piston ensures a perfect fit for Komatsu PC100-1, PC100-2, PC120-2, and PW100-1 excavators. As a critical component for engine rebuilds and overhauls, this piston is manufactured to restore original engine performance, compression, and fuel efficiency. We offer global shipping to major industrial markets including North America, Europe, Asia-Pacific, and the Middle East, ensuring fast delivery to ports and industrial centers worldwide.

Key Features & Benefits

• OEM Standard Compliance: Manufactured to meet or exceed original Komatsu specifications (6137-32-2110) for guaranteed fitment and performance.
• Superior Durability: Constructed from high-strength aluminum alloy with reinforced ring grooves to withstand extreme combustion pressures and temperatures.
• Enhanced Engine Efficiency: Precision-machined skirt profile and pin bore reduce friction, improving fuel economy and reducing emissions.
• Extended Service Life: Advanced heat treatment process ensures dimensional stability and resistance to thermal fatigue, prolonging engine life.
• Complete Set: Each order includes a full set of pistons required for a complete engine overhaul, ensuring balanced compression across all cylinders.

Technical Specifications

OEM Cross-Reference

This piston set is a direct replacement for the following OEM and alternative part numbers:

• Komatsu OEM: 6137-32-2110
• Alternative Part Numbers: 6735-41-2110, 6137-32-2120 (verify compatibility)
• Cross-Reference Engines: Suitable for S4D105-5A and S6D105-1 variants

Compatibility

This piston set is compatible with the following Komatsu excavator models and engine applications:

• Excavator Models: Komatsu PC100-1, PC100-2, PC120-2, PW100-1
• Engine Models: S4D105, S4D105-5A, 6D105, S6D105, S6D105-1
• Year Range: 1980s–1990s (verify specific model year)
• Application: Engine overhaul, rebuild, or replacement

Global Supply & Distribution

We provide reliable worldwide shipping to support B2B customers in all major markets:

• North America: Fast delivery to ports like Los Angeles, Houston, and New York.
• Europe: Direct shipping to Rotterdam, Hamburg, and Antwerp.
• Asia-Pacific: Efficient logistics to Singapore, Shanghai, and Tokyo.
• Middle East & Africa: Delivery to Dubai, Jeddah, and Durban.
• Export Experience: We comply with international trade regulations and offer flexible shipping options (FOB, CIF, EXW).

Quality Assurance

• Manufacturing Standards: ISO 9001 certified production facility with strict quality control processes.
• Testing: Each piston undergoes dimensional inspection, material hardness testing, and surface finish verification.
• Warranty: 12-month warranty against manufacturing defects from the date of shipment.
• Certifications: Compliant with OEM specifications and industry standards for heavy-duty diesel engines.

FAQ

Q1: Is this piston set a direct fit for my Komatsu PC120-2 excavator?
A: Yes, this piston set (OEM 6137-32-2110) is designed to directly replace the original pistons in Komatsu PC120-2 excavators equipped with the S6D105 engine. We recommend verifying your engine serial number to ensure compatibility with the S4D105 or S6D105 series.

Q2: What is the recommended installation procedure for these pistons?
A: Installation should be performed by a qualified diesel mechanic. Key steps include: clean the cylinder bore thoroughly, lubricate the piston and rings with clean engine oil, use a ring compressor to install the piston assembly, and torque the connecting rod bolts to Komatsu specifications. Always consult the service manual for your specific engine model.

Q3: How do I maintain these pistons for optimal performance?
A: Regular maintenance includes using high-quality engine oil and filters, monitoring compression levels during tune-ups, and inspecting pistons during major overhauls. Avoid prolonged idling and ensure the cooling system is functioning properly to prevent overheating, which can damage piston rings and skirts.