Swing Motor Reducer Assembly for Komatsu PC400-7 PC450-7 PC400-8 PC450-8 Excavator Procurement Guidelines Verify OEM part numbers: 706-7K-01040, 706-7K-01070, 208-26-00211 Confirm assembly compatibility with PC400-7 models, including swing motor, reducer, and parking brake components Request bench test reports for pressure, rotating torque, and internal leakage for both new and remanufactured units For remanufactured assemblies, verify replacement of pistons, valve plates,