The Sierra 18-6240 Anode is interchangeable with the following: Mercruiser 817373A1, 821630A1, 821-630C2, 97-821630Q1, 97-82630T1. Each Sierra product meets or exceeds the original equipment part it replaces. Composed of high quality magnesium.
Sierra Anode
Meets or exceeds the original equipment quality
Magnesium anode
Interchangeable with the following: Mercruiser 817373A1, 821630A1, 821-630C2, 97-821630Q1, 97-82630T1
Sierra Anode
Meets or exceeds the original equipment quality
Magnesium anode
Interchangeable with the following: Mercruiser 817373A1, 821630A1, 821-630C2, 97-821630Q1, 97-82630T1