New replacement Impeller compatible with Sierra 18-3306, Jabsco 13554-0001P, Johnson 09-812B, 812, 09-812B-1 Indmar Part# S685007 or 685007 Yamaha 6TA-12457-00 Fits Volvo CEF500124 , 3588914 , 3584350 , 21213664 , 3593660, 21213664 3841696 Impeller measures 1 15/16" wide, 2.25" diameter. 12 spline, 12 fins Fits almost all Indmar engine make and models. Fits in all Malibu Boats with Indmar engine 1996 to current production. Also fits engines equipped with the Johnson F6B raw water pump. Services All Indmar Monsoon Models. 320HP, 325HP, 330HP, 335HP, 340HP & 350HP All Indmar Hammerhead Models. Callaway 365, 380HP & 383-400HP All Indmar Carbureted, LCR, & 8.1L Engines All Supra, Moomba, Mastercraft & Tige's with Indmar Engines Known engine manufactures that use the 09-812B impeller: Alaska Diesel, Ameco Peninsula, Flagship, Indmar, Marine Power, Volvo Penta, Yamaha, Yanmar Fits most Volvo Penta carbureted and fuel injected gas engines 3.0L, 4.3L, 5.0L, 5.7L, 8.1L from 2005 to present.-m