Sierra 18-1156 Forward Gear BearingThe Sierra 18-1156 Forward Gear Bearing is for use with Mercruiser Sterndrives, Mercury Marine, Chrysler/Force/US Marine, and Honda Outboards.Interchangeable with: Chrysler/Force/US Marine; 31-30894A1; GLM; 21820; Honda Outboard; 91051-ZW1-003; Mallory; 9-75118; Mercruiser Stern Drive; 31-30894A1; Mercury Marine; 31-30894A1;