Tecnoseal R1 Rudder Anode - Zinc - 1-7/8" Diameter

The Tecnoseal R1 Rudder Anode is an essential cathodic protection component for saltwater and brackish-water vessels. If you spend serious time on the water, you know that corrosion is a silent threat to your boat's rudder assembly—one that can compromise steering integrity and lead to expensive repairs or replacement. This zinc anode sacrifices itself electrochemically to protect your rudder shaft and hardware from galvanic corrosion, extending the life of critical steering components and keeping you confident at the helm.

Tecnoseal's R1 rudder anode is engineered from high-purity zinc, a proven sacrificial material that corrodes preferentially to steel, stainless steel, and bronze components on your boat. At 1-7/8 inches in diameter and weighing just 0.3 pounds, the compact design fits most standard rudder installations without interfering with steering performance or alignment. Zinc anodes work by establishing a galvanic potential difference; the anode dissolves gradually in seawater while protecting your rudder assembly from pitting and structural degradation that saltwater environments accelerate relentlessly.

Captains and boat owners operating in coastal waters, estuaries, and offshore environments should inspect and replace their rudder anodes annually or every 12–18 months, depending on water conditions and salinity levels. The Tecnoseal R1 is compatible with conventional rudder post designs and is a straightforward bolt-on replacement that requires no special tools or expertise. Keep a spare on hand for spring commissioning or emergency repairs—corrosion waits for no one, and a failed rudder anode can leave you fighting steering issues when you need it most.