Lower Gear Housing, Mercruiser

Lower Gear Housing. For Mercruiser Stern Drive. For: R Style. Replaces Mercruiser Stern Drive 1623-3489A1, 1623-3646A1, 1623-3646A4, 1623-4110A3, 1623-5356A4, and GLM 17000. Premium Quality For Longer Life. Meets or exceeds manufacturer's recommended specifications. Backed by Sierra's limited lifetime warranty. For: R Style Replaces Mercruiser Stern Drive 1623-3489A1, 1623-3646A1, 1623-3646A4, 1623-4110A3, 1623-5356A4, and GLM 17000 Premium Quality For Longer Life Meets or exceeds manufacturer's recommended specifications Backed by Sierra's limited lifetime warranty