Wheel Loader Komatsu WA500-6 WA900-8 Hydraulic Main Control Valve Part Numbers 723-44-12101 723-44-13900 Procurement Guidelines Verify OEM Part Number: Confirm valve assembly compatibility with complete blade and ripper spool sections. Quality Documentation: New or remanufactured valves must include hydraulic bench test reports covering pressure, flow, and internal leakage for each section. Remanufacturing Standards: Ensure spools are either new or honed and repaired. All O