Alpha 1 & Gen. 2 Outdrive Parts *Drawings *Videos
Mercruiser Alpha One outdrive cover nut
Cover Nut Part - Installs into lower Gearcase
P/N 21120 Cover nut is used to hold the bearing carrier in place in the lower unitReplaces OEM 79448Mercruiser
tool # 90190 (OEM 91-61069T) bearing carrier retainer wrench will be required to remove and install this nut
Tech support exploded view Alpha One drawingsSearch by part number or description here
21120 cover nut
P/N 21120 Cover nut OEM 79448 $18.95
Customer who bought P/N 21120 also purchased:
P/N 87500 Mercruiser / Alpha 1 Gen 1, 1970 - 1990 upper gearcase seal kit. Replaces Mercury 26-32511A1.
P/N 87501 Alpha 1 Gen 2, 1991 and up upper housing gasket/seal kit. Replaces Mercury 26-88397A1. $25.95
Copyright 2018 T.C. Electronics/Marine (416) 751-7326All rights reserved.