Camp Zinc Donut Collar Anode Anodes/Zincs

Camp Zinc Donut Collar shaft anodes (also called donut collar shaft zincs) are sacrificial anodes. They protect propeller shafts and other submerged metal parts on your boat from galvanic corrosion. The donut profile suits installations with limited clearance between the propeller and the strut, cutlass bearing or keel.

Key Features:

• Sacrificial zinc construction: The zinc corrodes in place of your shaft and other oxidizable metals, giving cathodic protection in salt and brackish water.
• Low-profile donut design: The compact collar shape is made for tight spaces where a bulkier anode will not fit.
• Copper contact: A copper contact helps keep a permanent electrical ground to the shaft.
• Simple clamp-on installation: The anode clamps to the shaft, so it needs no special tools or modifications.
• Marine-grade standards: Camp marine zinc anodes are listed as conforming to MIL-A-18001 zinc anode standards.

Installation Tips:

• Mount the anode on clean, bare, unpainted metal so it makes good electrical contact.
• Do not paint the anode.
• After installing a new anode, check propeller clearance before starting the engine.

Donut collar zincs are measured by the inner diameter, so match the size to your shaft. Replace the anode as it wears down to keep your drive train protected.