Hydraulic Swing Motor and Swing Drive Assembly for E374 & E395GC Excavators
Part Numbers: 547-9727, 591-0774, 656-9431
Hydraulic Swing Motor Assembly compatible with CAT E374 and E395 excavators. This comprehensive assembly includes swing motor, reducer, and parking brake components.
Procurement Guidelines
Verify OEM part number and confirm assembly compatibility with CAT E374 & E395, including swing motor, reducer, and parking brake components
Require bench test reports for pressure, swing torque, and internal leakage for both new and remanufactured assemblies
For remanufactured units, ensure replacement of pistons, valve plate, planetary gears, bearings, and all oil seals
Inspect housing for cracks and verify intact oil seals upon arrival; protect ports to prevent contamination
Secure assembly during transportation to prevent impact damage to output shaft and precision gear components
Clean hydraulic pipelines before installation, replace hydraulic filters, and properly bleed air from system
Test swing speed, swing torque, and parking brake function after installation; check for start-stop impact and oil leakage
Product Images
Front view showing gear components and mounting points
Side view displaying gear teeth and housing details