600-645-7400 Cooling fan Komatsu bulldozer spare parts

600-645-7400 Cooling fan Komatsu bulldozer spare parts

The Komatsu 600-645-7400 cooling fan is a core component of the Komatsu bulldozer’s cooling system. Designed and manufactured strictly according to Komatsu’s original equipment manufacturer (OEM) standards, it is suitable for the high-temperature, heavy-load, and high-vibration operating environments of Komatsu bulldozers. It quickly dissipates heat from the engine and hydraulic system, stably controlling oil and water temperatures. It is a highly reliable cooling accessory for Komatsu bulldozer maintenance, repair, and fault replacement.

The 600-645-7400 cooling fan performs the core function of cooling the engine and hydraulic system. It uses high-strength engineering plastics or alloy blades with high dynamic balance precision, ensuring smooth operation, large airflow, and low noise. It maintains efficient cooling even under continuous operation. The fan blades are impact-resistant, anti-aging, and high-temperature resistant, effectively preventing deformation, cracking, and blade breakage. The fan base and mounting holes perfectly match Komatsu’s original dimensions, ensuring precise and secure assembly without vibration. The clearance between the fan base and the fan shroud and radiator is standard, maintaining cooling efficiency and preventing engine overheating, power loss, and shutdown caused by poor cooling.

This product uses original factory-matched structure and materials, is vibration-resistant and corrosion-resistant, suitable for harsh working conditions such as mining, earthmoving, and infrastructure construction, and will not loosen or produce abnormal noise even after long-term use. It perfectly matches the cooling system of Komatsu bulldozers, requiring no modification or adjustment; it’s ready to use immediately after installation, significantly reducing maintenance downtime and lowering equipment failure rates and operating costs.

Core Technical Parameters

Applicable Models: Komatsu series bulldozers

Product Model: 600-645-7400

Material: High-strength, high-temperature resistant blades / High-strength brackets

Operating Temperature: -30℃～120℃

Dynamic Balancing Standard: Original factory-grade high-precision dynamic balancing

Installation: Precise hole positioning, direct installation without modification

Protection: Vibration-resistant, dustproof, and oil-proof

Core Advantages

Original factory standard compatibility, direct installation without modification; high-efficiency large air volume, stable heat dissipation; good dynamic balance, quiet operation; vibration-resistant and aging-resistant, longer lifespan; reduces high-temperature failures and minimizes downtime losses.

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600-645-7400 Fan, Cooling

6245-61-8110 Plate
01435-01025 Bolt
07040-11409 Plug
07005-01412 Seal, Washer

6245-11-6401 Housing Assembly
• Housing, Thermostat

07046-44516 • Plug
07046-45016 • Plug
6240-11-6470 Gasket

01010-81095 Bolt
600-421-6630 Thermostat
6162-13-6440 Seal, Oil

07042-A0108 Plug

6240-61-1103 Pump Assembly, Water
6240-61-1130 • Body Assembly
6240-61-1111 • Body
07043-70211 •• Plug
6240-61-1250 •• Pipe
07043-70312 •• Plug
6162-63-1515 • Seal
06340-06305 • Bearing, Ball
06030-06205 • Bearing, Ball
6240-61-1470 • Spacer
6240-61-1440 • Ring, Snap
07012-D0022 • Seal, Oil
6240-61-1312 • Shaft
6240-61-1210 • Impeller
6240-61-1410 • Gear, Drive
6240-61-1150 • Cover
07000-G2140 • O-ring
07000-G2012 • O-ring
01010-81030 • Bolt

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