Duff CM762144M Mercury/MerCruiser Magnesium Anode | 4Boats

Magnesium sacrificial anode CM762144M from Duff, designed to protect Mercury outboards and MerCruiser sterndrives from electrochemical corrosion in freshwater environments.

• Part number: CM762144M
• Material: Magnesium (for freshwater use)
• Fits: Mercury outboards & MerCruiser sterndrives and engines
• Hole: Recessed, unthreaded 13 mm (0.51 in) diameter
• Function: Sacrificial anode to protect hull, outdrive and internal metalwork
• Fitment: Direct replacement, OEM-style shape
• Installation: No threading required for the recessed hole

Magnesium anodes are intended for freshwater use; use aluminum or zinc anodes for salt or brackish water.