Magnesium Anode For Mercruiser Alpha 1 Gimbal Black Magnesium Anode Replaces 821631M

Length:  4"
Width:  3"
Weight:  0.6 lbs

• Fits Alpha One and Alpha One Gen II outdrives.
• Mounting hardware not included.
• Requires 7/16" wrench to install.

US Military Grade Magnesium Anode For Freshwater Use.