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708-7W-00021 708-7W-00020 Cooling Fan Motor Bulldozer Komatsu D275 Fan Motor
708-7W-00021 708-7W-00020 Cooling Fan Motor Bulldozer Komatsu D275 Fan Motor
708-7W-00021 708-7W-00020 Cooling Fan Motor Bulldozer Komatsu D275 Fan Motor
708-7W-00021 708-7W-00020 Cooling Fan Motor Bulldozer Komatsu D275 Fan Motor
708-7W-00021 708-7W-00020 Cooling Fan Motor Bulldozer Komatsu D275 Fan Motor
708-7W-00021 708-7W-00020 Cooling Fan Motor Bulldozer Komatsu D275 Fan Motor
708-7W-00021 708-7W-00020 Cooling Fan Motor Bulldozer Komatsu D275 Fan Motor
708-7W-00021 708-7W-00020 Cooling Fan Motor Bulldozer Komatsu D275 Fan Motor
Specifications
MOQ :
1 set
Part No :
708-7W-00021、708-7W-00020
Warranty :
6 Months
Price :
Negotiable
Place of Origin :
China
Payment Terms :
Western Union, T/T, Assurance
Packaging Details :
Wooden Case / Cartonwith Foam Protection, or as Required
Supply Ability :
100pcs/day
Model Number :
D275A-5D、D275-5
Product Name :
Hydraulic fan motor
Delivery Time :
3-7 Weekdays
Certification :
ISO90001
Brand Name :
CAVOYD
Condition :
New / Rebuilt
Transportation Method :
DHL, UPS, FedEx, Sea Freight
Description
708-7W-00021 708-7W-00020 Bulldozer Komatsu D275 Bulldozer Fan Motor Auxiliary Motor Cooling (Radiator) Fan Motor
Core Function

Drives the cooling fan to dissipate heat from the engine and hydraulic system. It automatically reduces speed at idle or low temperature to save fuel and reduce noise, and increases speed under high temperature or heavy load to ensure adequate cooling.

Common Faults & Troubleshooting
  • Fan not rotating / abnormal speed: First determine whether the fault is in the pump or the motor—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.
  • Abnormal noise / squealing: Worn internal motor bearing, cavitation (air entrained in system), contaminated oil.
  • Unstable fan speed / jitter: Abnormal electronic control signal, seized motor displacement mechanism, air in oil circuit.
  • Oil leakage: Aged shaft oil seal, worn end-cover O-rings.
  • High oil temperature chain reaction: Severe motor internal leakage generates heat, which in turn accelerates wear.
Repair & Purchasing Recommendations
  • Light wear: Replace the oil seal + seal kit and clean the interior.
  • Severe scoring (cylinder block, valve plate, piston): Replace the rotating group parts or the complete motor assembly.
  • After reassembly, always fill the pump/motor with hydraulic oil before starting; running it dry will burn out the motor.
708-7W-00021 708-7W-00020 Cooling Fan Motor Bulldozer Komatsu D275 Fan Motor
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708-7W-00021 708-7W-00020 Cooling Fan Motor Bulldozer Komatsu D275 Fan Motor

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Product Detail
MOQ :
1 set
Part No :
708-7W-00021、708-7W-00020
Warranty :
6 Months
Price :
Negotiable
Place of Origin :
China
Payment Terms :
Western Union, T/T, Assurance
Contact Supplier
708-7W-00021 708-7W-00020 Cooling Fan Motor Bulldozer Komatsu D275 Fan Motor
708-7W-00021 708-7W-00020 Cooling Fan Motor Bulldozer Komatsu D275 Fan Motor
708-7W-00021 708-7W-00020 Cooling Fan Motor Bulldozer Komatsu D275 Fan Motor
708-7W-00021 708-7W-00020 Cooling Fan Motor Bulldozer Komatsu D275 Fan Motor

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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