ORIGINAL WALBRO D22-WAT DIAPHRAGM AND GASKET KIT FOR CARBURETTOR MODELS: WT-424-1,WT-592-1,WT-620-1,WT-621-1, WT-626-1,WT-630-1,WT-631-1,WT-640-1,WT-643-1, WT-644-1,WT-645-1,WT-646-1,WT-648-1,WT-649-1, WT-669-1,WT-670-1,WT-773-1,WT-775-1, WT-866-1,WT-924-1,WT-925-1,WT-973-1 Original part number : R123182 Original part number : D22-WAT CZ