Swing Motor Reducer Assembly for Komatsu PC1250-7 PC1250-8 Excavator 21N-26-00120 21N-26-00070 Product Verification & Compatibility Verify OEM part numbers and confirm assembly compatibility with models, including swing motor, reducer, and parking brake components. Quality Assurance Requirements Request bench test reports for pressure, rotating torque, and internal leakage for both new and remanufactured units For remanufactured assemblies, verify replacement of pistons,