Aftermarket Mercruiser 91-17256 Style Spanner Nut Wrench
The Sierra 18-3751 Spanner Nut is a replacement retaining, fastening or spacing component for the applicable assembly in Mercruiser applications. It replaces Mercury 8M2011027.
For:Â IA/IB/IC & EZ Shift, MC-I, R, MR, Alpha One, Gen II, Vazer, TRS, Bravo I & IX
Need help with fitment? Contact us with your engine model and serial number and we'll help check suitability.
What is Sierra 18-3751?
Sierra 18-3751 is an aftermarket spanner nut for Mercruiser applications.
Which part numbers cross-reference Sierra 18-3751?
This listing cross-references GLM 21120, Mercruiser 35912, Mercruiser 52834 and Mercruiser 79448. See the Cross References & Alternative Products section above for linked alternatives where available.
How can I check whether Sierra 18-3751 fits my Mercruiser application?
Contact us with your engine model and serial number and we'll help check suitability.