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Komatsu D375A-6 D375A-8 D475A-5 Bulldozer Fan Motor 708-7H-00680 708-7H-00670 708-7H-00612
Komatsu D375A-6 D375A-8 D475A-5 Bulldozer Fan Motor 708-7H-00680 708-7H-00670 708-7H-00612
Komatsu D375A-6 D375A-8 D475A-5 Bulldozer Fan Motor 708-7H-00680 708-7H-00670 708-7H-00612
Komatsu D375A-6 D375A-8 D475A-5 Bulldozer Fan Motor 708-7H-00680 708-7H-00670 708-7H-00612
Komatsu D375A-6 D375A-8 D475A-5 Bulldozer Fan Motor 708-7H-00680 708-7H-00670 708-7H-00612
Komatsu D375A-6 D375A-8 D475A-5 Bulldozer Fan Motor 708-7H-00680 708-7H-00670 708-7H-00612
Komatsu D375A-6 D375A-8 D475A-5 Bulldozer Fan Motor 708-7H-00680 708-7H-00670 708-7H-00612
Komatsu D375A-6 D375A-8 D475A-5 Bulldozer Fan Motor 708-7H-00680 708-7H-00670 708-7H-00612
Komatsu D375A-6 D375A-8 D475A-5 Bulldozer Fan Motor 708-7H-00680 708-7H-00670 708-7H-00612
Komatsu D375A-6 D375A-8 D475A-5 Bulldozer Fan Motor 708-7H-00680 708-7H-00670 708-7H-00612
Specifications
Part No :
708-7H-00680 708-7H-00670 708-7H-00612
Price :
Negotiable
MOQ :
1 Set
Product Name :
Bulldozer Fan Motor
Brand Name :
CAVOYD
Warranty :
6 Months
Payment Terms :
T/T
Delivery Time :
3-8 Working Days
Supply Ability :
300 Sets / Month
Applicable Model :
D375A-6 D375A-8 D475A-5
Transportation Method :
DHL, UPS, FedEx, Sea Freight
MOQ :
1 set
Packaging Details :
Wooden Case / Cartonwith Foam Protection, or as Required
Place of Origin :
China
Model Number :
D375A-6 D375A-8 D475A-5
Condition :
New / Rebuilt
Description
Bulldozer Komatsu D375A-6 D375A-8 D475A-5 Bulldozer Fan Motor Auxiliary Motor Cooling (Radiator) Fan Motor 708-7H-00680 708-7H-00670 708-7H-00612
The D375A-6 is a Komatsu mining-class large bulldozer that uses a hydraulically driven radiator cooling fan — the fan pump (piston pump) supplies oil, and the fan motor (hydraulic motor) drives the cooling fan. The fan speed is automatically and variably regulated based on coolant and hydraulic oil temperature, saving fuel, reducing noise and ensuring adequate cooling.
The D375A-6 fan pump is a piston pump (708-1S-00390 / 00951), and the fan motor is commonly equipped with a solenoid valve to enable variable-speed control.
Common Faults & Troubleshooting
  • Fan not rotating / abnormal speed: Measure the fan motor inlet pressure/flow — if pressure is normal but the fan does not turn, it indicates internal motor wear; if pressure or flow is insufficient, check the fan pump, filter and oil circuit.
  • Variable-speed failure (constant high/low speed): Faulty solenoid valve or abnormal electronic control signal — the D375A-6 has an electronically controlled variable-speed fan; check the solenoid and wiring first.
  • Abnormal noise / squealing: Worn motor bearing, air ingestion in system (cavitation), contaminated oil.
  • Oil leakage: Aged shaft oil seal, worn end-cover O-rings.
  • High oil temperature: Severe motor internal leakage generates heat, accelerating wear.
Repair & Purchasing Recommendations
  • Light wear: Replace the oil seal + seal kit, clean the interior, inspect/repair the solenoid valve.
  • Severe scoring: Replace the rotating group parts or the fan motor assembly.
  • After reassembly, always fill with hydraulic oil before starting; running dry will burn out the motor.
  • When ordering, confirm the specific D375A-6 sub-model (-6 / -6R) and the original old part number.
D375A-6 D375A-8 Fan Motor Part No.: 708-7H-00680 / 708-7H-00650
D475A-5 Fan Motor Part No.: 708-7H-00612
Product Images
Komatsu D375A-6 D375A-8 D475A-5 Bulldozer Fan Motor 708-7H-00680 708-7H-00670 708-7H-00612 Komatsu D375A-6 D375A-8 D475A-5 Bulldozer Fan Motor 708-7H-00680 708-7H-00670 708-7H-00612 Komatsu D375A-6 D375A-8 D475A-5 Bulldozer Fan Motor 708-7H-00680 708-7H-00670 708-7H-00612 Komatsu D375A-6 D375A-8 D475A-5 Bulldozer Fan Motor 708-7H-00680 708-7H-00670 708-7H-00612 Komatsu D375A-6 D375A-8 D475A-5 Bulldozer Fan Motor 708-7H-00680 708-7H-00670 708-7H-00612 Komatsu D375A-6 D375A-8 D475A-5 Bulldozer Fan Motor 708-7H-00680 708-7H-00670 708-7H-00612 Komatsu D375A-6 D375A-8 D475A-5 Bulldozer Fan Motor 708-7H-00680 708-7H-00670 708-7H-00612 Komatsu D375A-6 D375A-8 D475A-5 Bulldozer Fan Motor 708-7H-00680 708-7H-00670 708-7H-00612 Komatsu D375A-6 D375A-8 D475A-5 Bulldozer Fan Motor 708-7H-00680 708-7H-00670 708-7H-00612 Komatsu D375A-6 D375A-8 D475A-5 Bulldozer Fan Motor 708-7H-00680 708-7H-00670 708-7H-00612 Komatsu D375A-6 D375A-8 D475A-5 Bulldozer Fan Motor 708-7H-00680 708-7H-00670 708-7H-00612 Komatsu D375A-6 D375A-8 D475A-5 Bulldozer Fan Motor 708-7H-00680 708-7H-00670 708-7H-00612
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Komatsu D375A-6 D375A-8 D475A-5 Bulldozer Fan Motor 708-7H-00680 708-7H-00670 708-7H-00612

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Product Detail
Part No :
708-7H-00680 708-7H-00670 708-7H-00612
Price :
Negotiable
MOQ :
1 Set
Product Name :
Bulldozer Fan Motor
Brand Name :
CAVOYD
Warranty :
6 Months
Contact Supplier
Komatsu D375A-6 D375A-8 D475A-5 Bulldozer Fan Motor 708-7H-00680 708-7H-00670 708-7H-00612
Komatsu D375A-6 D375A-8 D475A-5 Bulldozer Fan Motor 708-7H-00680 708-7H-00670 708-7H-00612
Komatsu D375A-6 D375A-8 D475A-5 Bulldozer Fan Motor 708-7H-00680 708-7H-00670 708-7H-00612
Komatsu D375A-6 D375A-8 D475A-5 Bulldozer Fan Motor 708-7H-00680 708-7H-00670 708-7H-00612
Komatsu D375A-6 D375A-8 D475A-5 Bulldozer Fan Motor 708-7H-00680 708-7H-00670 708-7H-00612

Guangzhou Kawo Construction Machinery Co.,Ltd.

Verified Supplier
1 Years
guangdong, guangzhou
Since 2017
Business Type :
Trading Company, Manufacturer
Main Products :
Construction Hydraulic Pump, Excavator Hydraulic Pump, Hydraulic Control Valve
Total Annual :
$1 Million -US$5 Million
Employee Number :
80~100
Certification Level :
Verified Supplier
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