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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

Bulldozer Fan Motor 708-7H-00680

Fan Motor Assembly For Komatsu D375A-6

708-7H-00680 fan motor assembly

Place of Origin:

China

Brand Name:

CAVOYD

Model Number:

D375A-6 D375A-8 D475A-5

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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
Product Details
Product Name:
Bulldozer Fan Motor
Part No:
708-7H-00680 708-7H-00670 708-7H-00612
Applicable Model:
D375A-6 D375A-8 D475A-5
Condition:
New / Rebuilt
MOQ:
1 Set
Price:
Negotiable
Payment Terms:
Western Union, T/T, Assurance
Supply Ability:
300 Sets / Month
Delivery Time:
3-8 Working Days
Packaging Details:
Wooden Case / Cartonwith Foam Protection, Or As Required
Transportation Method:
DHL, UPS, FedEx, Sea Freight
Warranty:
6 Months
Highlight:

Bulldozer Fan Motor 708-7H-00680

,

Fan Motor Assembly For Komatsu D375A-6

,

708-7H-00680 fan motor assembly

Payment & Shipping Terms
Minimum Order Quantity
1 set
Price
Negotiable
Packaging Details
Dimension: L35×W35×H50 cm
Delivery Time
3-8 days
Payment Terms
T/T
Supply Ability
300pcs/day
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Product 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 bulldozer fan motor component view 1 Komatsu bulldozer fan motor component view 2 Komatsu bulldozer fan motor component view 3 Komatsu bulldozer fan motor component view 4 Komatsu bulldozer fan motor component view 5 Komatsu bulldozer fan motor component view 6 Komatsu bulldozer fan motor component view 7 Komatsu bulldozer fan motor component view 8 Komatsu bulldozer fan motor component view 9 Komatsu bulldozer fan motor component view 10 Komatsu bulldozer fan motor component view 11 Komatsu bulldozer fan motor component view 12
Tags：

fan motor assembly

radiator fan motor

hydraulic cooling fan motor

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Guangzhou Kawo Construction Machinery Co.,Ltd.
With 20 years of professional experience in construction machinery hydraulics, CAVOYD focuses on hydraulic spare parts supply and remanufacturing for excavators, bulldozers and loaders. We mainly supply hydraulic pumps, control valves, swing assemblies, travel assemblies, fan pumps and fan motors. Our parts fit Caterpillar, Komatsu, Volvo, Hitachi, Kobelco, Sany, Doosan and other mainstream brands. We provide high-quality new parts and precision remanufactured parts, serving global clients wit
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