Aftermarket Mercury Outboard 26-55682A1 Lower Unit Seal Kit
The Sierra 18-2626 Gearbox Seal Kit is an aftermarket lower-unit seal kit for Mercury 100/115/125HP 2-Stroke Outboards from serial 0B209468 & newer, for gearcases using either a 3- or 6-jaw reverse clutch. It replaces Mercury 26-43035A1, 26-43035A2, 26-43035A3 and 26-43035A4.

Mercury engines:
100/115/125 hp 2-cycle O/B (0B209468 & newer) w/ either a 3 or 6 jaw reverse clutch
Need help with fitment? Contact us with your engine model and serial number and we'll help check suitability.
What is Sierra 18-2626?
Sierra 18-2626 is an aftermarket gearbox seal kit for Mercury 100/115/125HP 2-Stroke Outboards applications.
Which part numbers cross-reference Sierra 18-2626?
This listing cross-references Mercury 26-43035A4, Mercury 26-43035A1, Mercury 26-43035A2 and Mercury 26-43035A3. See the Cross References & Alternative Products section above for linked alternatives where available.
How can I check whether Sierra 18-2626 fits my Mercury 100/115/125HP 2-Stroke Outboards application?
Contact us with your engine model and serial number and we'll help check suitability.