Sierra’s 18-7121 O-Ring is designed for use with OMC, Mercury, and Mercruiser outboards and stern drives. It features a 3.100″ I.D. and a 0.135″ width. Includes one o-ring per package. It is interchangeable with Mallory 9-76651, GLM 82350, Mercury Marine 25-35029, OMC Stern Drive 308621, and Mercruiser Stern Drive 25-35029, 27-882613, and 802231. Each Sierra product meets or exceeds the original equipment part it replaces.
Designed for use with OMC, Mercury, and Mercruiser outboards and stern drives
Dimensions: 3.100″ I.D. x 0.135″ Width
Includes one o-ring per package
Interchangeable with Mallory 9-76651, GLM 82350, Mercury Marine 25-35029, OMC Stern Drive 308621, and Mercruiser Stern Drive 25-35029, 27-882613, and 802231
Each Sierra product meets or exceeds the original equipment part it replaces
