Sierra 18-6101 OMC Cobra Lower Unit Zinc Anode
- Brand:
- Sierra
- Part no:
- 18-6101
Where to buy
View on Amazonpaid link
Specifications
- Material
- Zinc
Sierra 18-6101 is a zinc anode for the lower unit of OMC Cobra drives. It is listed as fitting 1987 Cobra lower units with 2.5 L, 3.0 L, 4.3 L, 5.0 L or 5.7 L engines. It is cross-referenced to other part numbers, and the fit is given for one model year, so check your drive's year and engine size before relying on it.
Our take
The fitment for 18-6101 is narrow: 1987 Cobra lower units on 2.5 L, 3.0 L, 4.3 L, 5.0 L and 5.7 L engines. It is a zinc anode, so on a boat the first job is confirming your drive is a Cobra of that year before trusting it.