Trim tab - installs onto the lower unit for Mercruiser models 1967 - 1990 MC-1, R, MR and Alpha 1. The length of the
fin on this magnesium measures approximately 2-3/8" from base to tip of fin. If you are using an oversized propeller
(larger diameter) and do not have the clearance to use this anode, you can simply grind the fin tip down until your propeller
has sufficient clearance.
GLM 12671 or Sierra 18-6241 $29.95
12716 Magnesium Anode 76214A6
Can be mounted in place of the standard trim tab in cases where using the standard fin style tab can't be used. This
is ideal where your boat has power steering and the standard fin style needs to be grounded down too much to be installed. GLM 12716 or Mercury 76214A6
12751 Upper Gearcase 821629A2
Installs onto the front section of the upper gear housing using 2 bolts. GLM 12751 or Mercury 821629A2
12755 Bearing Carrier Alpha 1 806105A2
Installs onto the Alpha 1 Gen 2 (1991 and up) lower unit propeller shaft bearing carrier (GLM #11405, Mercury # 818763A10
using 2 bolts and 2 washers. GLM 12755 or Mercury 806105A2
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