Genuine-fit thermostat part number 6251-61-2610 (6251612610) designed for Komatsu SAA6D125E engines—compatible with PC400LC-8, PC400LCSE-8R, PC450LC-8, PC490LC-10, PC490LC-11, and PC490LCI-11 excavators.

Description

Thermostat 6251-61-2610 – Premium Replacement for Komatsu Engines and Equipment

High-performance aftermarket thermostat engineered for precise coolant temperature regulation in Komatsu SAA6D125E diesel engines and a wide range of Komatsu equipment. Precision-manufactured for drop-in compatibility and consistent thermal management in demanding construction and mining environments.

Technical Specifications

Fits Part Numbers: 6251-61-2610, 6251612610
Condition: New, aftermarket replacement
Function: Engine coolant thermostat for temperature regulation

Verified Equipment Compatibility

Fits Komatsu Engines:

• SAA6D125E, SAA6D125E-5, SAA6D125E-5A, SAA6D125E-5A-02, SAA6D125E-5B, SAA6D125E-5B-02, SAA6D125E-5BA
• SAA6D125E-5BR-W, SAA6D125E-5C, SAA6D125E-5C-02, SAA6D125E-5CR, SAA6D125E-5CR-W
• SAA6D125E-5D, SAA6D125E-5D-01, SAA6D125E-5DR, SAA6D125E-5E, SAA6D125E-5E-01
• SAA6D125E-5F, SAA6D125E-5F-02, SAA6D125E-5FR, SAA6D125E-5-FR
• SAA6D125E-5G, SAA6D125E-5G-02, SAA6D125E-5HR, SAA6D125E-5J
• SAA6D125E-6A, SAA6D125E-6B, SAA6D125E-6C
• SAA6D125E-7, SAA6D125E-7A, SAA6D125E-7B, SAA6D125E-7C, SAA6D125E-7D, SAA6D125E-7E

Fits Komatsu Excavators:

• PC400LC-8, PC400LCSE-8R, PC450LC-8
• PC490LC-10, PC490LC-11, PC490LCI-11

Fits Komatsu Loaders:

• WA470-6, WA470-7, WA470-8
• WA480-6, WA480-8

Fits Komatsu Articulated Dump Trucks:

• HM300-2

Why Choose This Thermostat

The thermostat is a critical component of your engine’s cooling system, regulating coolant flow to maintain optimal operating temperature for efficient combustion and long engine life. This replacement unit delivers:

• Reliable temperature regulation – Precise coolant control for optimal engine thermal management
• Exact-fit installation – Direct replacement with correct opening temperature and housing configuration
• Durable construction – Built to withstand continuous thermal cycling in heavy-duty diesel engines
• Cost-effective solution – Premium aftermarket quality at a fraction of dealer pricing

Package Contents

1 × Thermostat (6251-61-2610)

Essential for engine maintenance, thermostat replacement, and preventive service. Keep your Komatsu SAA6D125E engines and PC/WA-series equipment running at optimal temperature on every job site.

Explore more from our collection.