Sierra 18-6012 MerCruiser Zinc Trim Tab Anode
- Brand:
- Sierra
- Part no:
- 18-6012
Where to buy
View on Amazonpaid link
Specifications
- Material
- Zinc
A zinc replacement anode from Sierra for MerCruiser stern drives, part number 18-6012. It is listed for Alpha One and Gen II drives from 1991 on, along with earlier drive types. It is not meant for Black Max propellers or other high-rake props, so check your propeller before fitting it. Cross-reference numbers shown include GLM 12740 and MerCruiser 34127.
Our take
The zinc body does the sacrificial work on a MerCruiser stern drive, but the Black Max and other high rake propeller exclusion is a real restriction. If your drive carries one of those props, this anode is the wrong one.