2″ Streamlined Shaft Anode – Aluminum
Aluminum shaft anode with 2 halves and stainless steel hardware.
Nuts are pressed into the casting and bolts are captured with plastic retaining washers for easy assembly.
Performance Metals Navalloy® aluminum anodes are manufactured to the military specification MIL-DTL 24779 and are suitable for use in all water types- salt, brackish, or fresh.
The anode includes the exclusive, patented “red spot” wear indicator.
Dimensions:
- A – 2″ (51mm)
- B – 3-1/4″ (83mm)
- C – 2-7/8″ (73mm)

![Tecnoseal X1 Shaft Anode - Zinc - 3/4" Shaft Diameter [X1]](https://www.boataccessorydepot.com/wp-content/uploads/2026/10/tecnoseal-x1-shaft-anode-zinc-3-4-shaft-diameter-x1.webp)
![Tecnoseal R3AL Rudder Anode – Aluminum – 3-3/4″ Diameter[R3AL]](https://www.boataccessorydepot.com/wp-content/uploads/2026/10/tecnoseal-r3al-rudder-anode-aluminum-3-3-4-diameter-r3al.webp)
![Tecnoseal R1AL Rudder Anode – Aluminum – 1-7/8″ Diameter[R1AL]](https://www.boataccessorydepot.com/wp-content/uploads/2026/10/tecnoseal-r1al-rudder-anode-aluminum-1-7-8-diameter-r1al.webp)
![Tecnoseal R5MG Rudder Anode - Magnesium - 5" Diameter [R5MG]](https://www.boataccessorydepot.com/wp-content/uploads/2026/10/tecnoseal-r5mg-rudder-anode-magnesium-5-diameter-r5mg.webp)
![Tecnoseal R1 Rudder Anode - Zinc - 1-7/8" Diameter [R1]](https://www.boataccessorydepot.com/wp-content/uploads/2026/10/tecnoseal-r1-rudder-anode-zinc-1-7-8-diameter-r1.webp)
![Tecnoseal R5 Rudder Anode - Zinc - 5" Diameter x 7/8" Thickness [R5]](https://www.boataccessorydepot.com/wp-content/uploads/2026/10/tecnoseal-r5-rudder-anode-zinc-5-diameter-x-7-8-thickness-r5.webp)
![Tecnoseal R4 Rudder Anode - Zinc - 5" Diameter x 5/8" Thickness [R4]](https://www.boataccessorydepot.com/wp-content/uploads/2026/10/tecnoseal-r4-rudder-anode-zinc-5-diameter-x-5-8-thickness-r4.webp)
![Tecnoseal X4 Shaft Anode - Zinc - 1-1/8" Shaft Diameter [X4]](https://www.boataccessorydepot.com/wp-content/uploads/2026/10/tecnoseal-x4-shaft-anode-zinc-1-1-8-shaft-diameter-x4.webp)