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