The Sierra 18-7188-9 O-Ring is interchangeable with Mallory 9-76559, Mercruiser 25-805726, Mercury 25-805726, Volvo Penta 955983. It features an ID of 0.361″ (9.1mm) and a width of 0.064″ (1.6mm). Package includes five O-rings. Each Sierra product meets or exceeds the original equipment part it replaces.
I.D.: 0.361″ (9.1mm)
Width: 0.064″ (1.6mm)
Interchangeable with Mallory 9-76559, Mercruiser 25-805726, Mercury 25-805726, Volvo Penta 955983
Each package includes five O-rings
