Product Information 723-43-13400 Main Hydraulic Control Valve for Komatsu WA470-6, WA470-6A, WA480-6 Wheel Loaders 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