Sierra 18-7478 Quad Ring

Sierra O-Ring Special Order est. 10 Days For use on Mercruiser I/O and Mercury/Mariner Outboard Engines O.E. # 25-54029 Dimensions:  I.D. 2.425, Width .103"

Sierra 18-0275 O-Ring - Special Order est. 10 Days Interchangeable with: Yamaha Outboard 93210-97M55-00

Sierra 18-7961 O-Ring Sierra replacement O-Ring for use on Mercury Marine engines. I.D.: 3.650" Width: 0.135" Interchangeable with: Mallory 9-76569 Mercury Marine 25-47254

Sierra 18-7151 O-Ring I.D.: 3.000" or 76.2mm Width: 0.135" or 3.4mm Interchangeable with: GLM 82340 Mallory 9-76540 Mercruiser Stern Drive 25-39572 25-20081 Mercury...

Sierra 18-7181 O-Ring I.D.: 50.500 mm Width: 3.000 mm Interchangeable with: GLM 45060 Volvo Penta 925091 975672