Sierra International 18-3207 Marine Impeller Repair Kit for Mercury/Mariner Outboard Motor Sierra Impeller Kit Meets or exceeds the original equipment quality Sierra part number: 18-3207 Interchangeable with the following: GLM 12250, Mallory 9-48300, Mercury 47-89983Q1, 47-89983T2 Fit specific, check part numbers to ensure proper fit