Fits all GM model engines except MR/Alpha/Bravo with a "triangular" three-bolt coupler Meets or exceeds the original coupler quality Interchangeable with the following: GLM 11500, Mallory 9-72502, Mercruiser 76850A2, 38965A1, 38965A2, 22492A2, 32492A3 and 32492A5 Fit specific, check part numbers to ensure proper fit Compatible with vehicle type: marine-personal-craft