The Sierra 18-7459 O-Ring is designed for Mercruiser. It provides the sealing surface required at the specified joint to help prevent leakage after disassembly and reassembly.
ID:Â 2.234" or 56.7mm
Width:Â 0.139" or 3.5mm
Fits:Â MCM 575 SCi, 600SC, 800SC
Need help with fitment? Contact us with your engine model and serial number and we'll help check suitability.
What is Sierra 18-7459?
Sierra 18-7459 is an aftermarket o-ring for Mercruiser applications.
Which part numbers cross-reference Sierra 18-7459?
This listing cross-references Mercruiser 25-20826, Mercury 25-20826, GLM 82280 and Mercruiser 20826. See the Cross References & Alternative Products section above for linked alternatives where available.
How can I check whether Sierra 18-7459 fits my Mercruiser application?
Contact us with your engine model and serial number and we'll help check suitability.
Australian Dollars
