Prime Line 7-07148 Carburetor Kit without Needle and Seat Replacement for Model Walbro D10-WAT, D4-WAT, D2-WAT, D1-WAT, D1-WA, D1-WT, D10-WA Includes Gaskets and Diaphragms Does Not Include Needle & Seat Fits Models WA/WT250-510, 350-512, 350-516, 350-521, 350-522, 350-530, 350-532, 350-533, 350-534, 350-535, 350-536, 350-541, 350-542, 350-548, 350-558