Martyr Aluminium Mercury/MerCruiser Block Anode - Replaces OEM 821631

Drop in replacements for OEM anodes. Manufactured to conform to US mil spec MIL-A-18001 K composition. Available in cadmium free aluminium versions.

Important: Specifications vary by product code. Confirm the required size or configuration before ordering.

Product code: 191225

Please compare the product code and specifications with the required application before ordering.