The Sierra 18-21005 Gimbal Bearing replaces Mercruiser 879194A01, Mercruiser 30-862540A04, Mercruiser 30-862540A3 for Mercruiser applications. It supports the sterndrive input shaft through the transom assembly and allows smooth shaft rotation.
Greasable
Fits:Â All Bravos, Alpha One Gen II (1998 & Up)
Interchangeable with the following:
Need help with fitment? Contact us with your engine model and serial number and we'll help check suitability.
What is Sierra 18-21005?
Sierra 18-21005 is an aftermarket gimbal bearing for Mercruiser applications.
Which part numbers cross-reference Sierra 18-21005?
This listing cross-references Mercruiser 30-862540A3, Mercruiser 30-879194A01, Mercruiser 879194A01 and Mercruiser 30-862540A04. See the Cross References & Alternative Products section above for linked alternatives where available.
How can I check whether Sierra 18-21005 fits my Mercruiser application?
Contact us with your engine model and serial number and we'll help check suitability.
Australian Dollars
