The Sierra 18-2100 Gimbal Bearing replaces 30-879194A02 in Mercruiser applications. It supports the sterndrive input shaft through the transom assembly, allowing smooth rotation while maintaining alignment between the engine and drive.
Suits Mercruiser drives:
MC-1, R, MR and Alpha(1974-97), Alpha Gen II (1991-97), Bravo I/II/III (1988-95)
This is a greasable bearing.
Need help with fitment? Contact us with your engine model and serial number and we'll help check suitability.
What is Sierra 18-2100?
Sierra 18-2100 is an aftermarket gimbal bearing for Mercruiser applications.
Which part numbers cross-reference Sierra 18-2100?
This listing cross-references Mercruiser 30-60794A2, Mercruiser 30-60794A4, Mercruiser 30-60794B4 and Mercruiser 30-879194A02. See the Cross References & Alternative Products section above for linked alternatives where available.
How can I check whether Sierra 18-2100 fits my Mercruiser application?
Contact us with your engine model and serial number and we'll help check suitability.
Australian Dollars
