Martyr Zinc Streamlined Shaft Anode

Martyr Zinc Streamlined Shaft Anode is built to help protect an inboard propeller shaft from galvanic corrosion in saltwater environments. Designed for secure shaft contact and dependable sacrificial protection, this marine shaft anode uses a streamlined profile to reduce drag while helping extend the service life of running gear and other underwater metal components.

Key Features

• Zinc alloy construction: Ideal for saltwater applications where reliable cathodic protection is needed for prop shafts and related metal hardware.
• Streamlined two-piece design: Interlocking halves fit around the shaft for strong contact and a clean, low-drag profile.
• Stainless steel hardware: Includes Allen head fasteners and retaining hardware for secure installation and dependable hold.

Boat owners choose Martyr anodes for their consistent casting quality and marine corrosion protection. This shaft anode is designed to mount directly over the propeller shaft, where it sacrifices itself before more valuable underwater metals can corrode. The streamlined shape supports efficient performance, while the precision fit helps maintain even contact around the shaft.

Martyr offers this zinc shaft anode in multiple imperial shaft sizes, making it a practical choice for a wide range of inboard boats. If your vessel operates primarily in salt water, a Martyr zinc anode is the proper material choice; for brackish or fresh water applications, alternative anode alloys may be more appropriate. Always match the anode size to your shaft diameter for the best fit and protection.