Impeller Key, Yamaha/Mercury

Impeller Key. For Yamaha Outboard and Mercury Marine. Fits: Mercury Models 40A, 40B, 40C. Fits: Yamaha C40 (1990-97). Premium Quality For Longer Life. Meets or exceeds manufacturer's recommended specifications. Backed by Sierra's limited lifetime warranty. Fits: Mercury Models 40A, 40B, 40C Fits: Yamaha C40 (1990-97) Premium Quality For Longer Life Meets or exceeds manufacturer's recommended specifications Backed by Sierra's limited lifetime warranty