DeWalt N566148 Trigger Valve Assembly Genuine OEM DeWalt part Replaces old part number 647956-00 Fits models: D51236K Type 1, D51238K Type 1, D51238K Type 2, D51238K Type 3, D51256K Type 1, D51256K Type 2, D51256K Type 3, D51257K Type 1, D51257K Type 2, D51275K Type 1, D51275K Type 2, D51275K Type 3, D51276K Type 1, D51276K Type 2, D51321 Type 1, D51321 Type 2, D51420K Type 1, D51422K Type 1, D51422K Type 2, D51422K Type 3, D51430 Type 1, D51430 Type 2, D51430 Type 3, D51431 Type 1, D51431 Type 2, D51431 Type 3, D51822 Type 4, D51822 Type 5, D51825 Type 1, D51844 Type 4, D51844 Type 5, D51850 Type 1, D51855 Type 1 Please note: Consult your machine's manual before ordering to ensure correct replacement parts