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542-7626 CAT E374 / 395GC Fan Motor Auxiliary Motor Overhaul Repair Parts
Complete overhaul kit including Cylinder Block, Valve Plate, Piston (Slipper), Retainer Plate, Swashplate, and Seal Kit for CAT 374GC/395GC mining excavator fan motors.
Component Parts List
Cylinder Block (Pump Barrel)
Valve Plate
Piston, Nine-hole (Piston Bore)
Piston Slipper (Copper Slipper)
Swashplate (Cam Plate)
Main Shaft
Bearings (Large & Small)
Complete Repair Kit
Application Overview
The 374GC / 395GC are large mining excavators that use a hydraulically driven cooling fan. The fan motor is a hydraulic motor supplied by the engine-mounted fan pump, driving the radiator cooling fan with auto-regulated speed based on coolant/hydraulic oil temperature, providing fuel savings and reduced noise. The fan motor on these platforms is typically a piston-type hydraulic motor (Gp-Piston).
Common Faults & Troubleshooting
Fan not rotating / abnormal speed: Measure fan motor inlet pressure/flow. If pressure is normal but fan doesn't turn, indicates internal motor wear. If pressure/flow is insufficient, check fan pump, filter, and oil circuit.
Variable-speed failure: Faulty solenoid valve or abnormal electronic control signal.
Abnormal noise / squealing: Worn bearing, air ingestion (cavitation), or contaminated oil.
Oil leakage: Aged shaft oil seal or worn O-rings.
High oil temperature: Severe motor internal leakage generating heat.
Repair & Purchasing Recommendations
Light wear: Replace oil seal + seal kit
Severe scoring: Replace rotating group parts or motor assembly
Fill with hydraulic oil before starting after reassembly
Confirm sub-model (374GC/395GC) and original old part number when ordering
Product Images
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Trading Company,Manufacturer
Year Established:
2017
Total Annual:
$1 Million -US$5 Million
Employee Number:
80~100
Ecer Certification：
Verified Supplier
Guangzhou Kawo Construction Machinery Co., Ltd.
Company Profile
Professional Excavator Hydraulic Products Manufacturer & Service Provider
Founded in 2017, Guangzhou Kawo Construction Machinery Co., Ltd. is a professional manufacturer and service provider specializing in excavator hydraulic produ... Guangzhou Kawo Construction Machinery Co., Ltd.
Company Profile
Professional Excavator Hydraulic Products Manufacturer & Service Provider
Founded in 2017, Guangzhou Kawo Construction Machinery Co., Ltd. is a professional manufacturer and service provider specializing in excavator hydraulic produ...
