Aftermarket Mercury Outboard 47-8M0214944 Impeller
The Sierra 18-8920 Impeller replaces Mercury 47-8037481 for Mercury Outboard applications. Its flexible vanes draw and move cooling water through the pump.
6-9.8hp 2-stroke carbureted engines & 8-9.9hp 4-stroke (serial number 0R042475 and above)
Need help with fitment? Contact us with your engine model and serial number and we'll help check suitability.
What is Sierra 18-8920?
Sierra 18-8920 is an aftermarket impeller for Mercury Outboard applications.
Which part numbers cross-reference Sierra 18-8920?
This listing cross-references Boaters World 3B2-65021-1, Mercury 47-8037481 and Mercury 47-8M0214945. See the Cross References & Alternative Products section above for linked alternatives where available.
How can I check whether Sierra 18-8920 fits my Mercury Outboard application?
Contact us with your engine model and serial number and we'll help check suitability.