Anodes

  1. Martyr Johnson/Evinrude Cavitation Plate Sacrificial Anode

    $10.10 - $11.70
  2. Martyr Volvo Penta Medium Ring Sacrificial Anode

    $10.14 - $14.89
  3. Performance Metals "Red Dot" Sacrificial Shaft Anode

    $10.41 - $20.99
    3
  4. Martyr Mercury Bravo Trim Tab Sacrificial Anode

    $10.44 - $11.38
  5. Mercury OEM Replacement Sacrificial Anode - 42121Q02

    $10.49
    0
  6. Martyr Bolt-On Hull Sacrificial Anode

    $10.64 - $84.99
  7. Martyr Max-Prop Anode

    $10.69 - $27.99
    2
  8. Martyr Volvo Penta Triangle Sacrificial Anode - CM872793Z

    $10.94
  9. Martyr Mercury/Mercruiser Sacrificial Anode

    $10.97 - $11.85
    0
  10. 11% off

    Evinrude Sacrificial Anode - 0338635

    $12.49
    $11.00
    0
  11. Martyr Volvo Penta Upper Gearcase Sacrificial Anode

    $11.06 - $16.17
  12. Martyr Mercury/Mercruiser/Honda Sacrificial Anode

    $11.15 - $21.99
    0
  13. Martyr Suzuki Trim Tab Skeg Sacrificial Anode - CM5512587D00Z

    $11.33
  14. Camp Suzuki Outboard Small Sacrificial Anode - 55320-95310

    $11.49
  15. Camp Maxi-Prop Propeller Sacrificial Anode - 63M3

    $11.57
  16. Martyr Mercury/Mercruiser Plate Style Sacrificial Anode - CM34762Z

    $11.71
    0
  17. Martyr Propeller Nut Sacrificial Anode

    $11.89 - $27.99
    1
  18. Martyr BRP Johnson/Evinrude Block Sacrificial Anode

    $11.97 - $15.32
  19. Martyr Limited Clearance Sacrificial Shaft Donut Collar Anode

    $12.06 - $46.99
    7
  20. Martyr De-Icer Sacrificial Anode

    $12.16
  21. Camp Johnson & Evinrude Outboard Sacrificial Anode - C173

    $12.23
  22. Camp Shaft Barrel Collar Sacrificial Anode

    $12.31 - $139.99
  23. Martyr OMC Cobra Sacrificial Anode

    $12.49 - $15.75
  24. Martyr Yamaha Gimbal Housing Nut Sacrificial Anode - CM68V1132501A

    $12.68
  25. Martyr Mercury Alpha Trim Cylinder Sacrificial Anode

    $12.70 - $37.99
  26. Honda Outboard Replacement Anode - 41106-ZW9-000

    $12.79
    0
  27. Camp Mercury Outdrive Sacrificial Anode

    $12.80 - $24.99
  28. Seachoice Streamlined Shaft Anodes with Allen Screw

    $12.85 - $78.99
  29. Camp Sacrificial Anode for Line Cutters

    $12.92 - $30.99
    2
  30. Martyr Mercury Bravo III Trim Tab Skeg Sacrificial Anode - CM762144M

    $12.93
  31. Martyr Mercury Bravo Trim Cylinder Sacrificial Anode - CM806190M

    $12.96
  32. Martyr Mercury Outboard Transom Bar Sacrificial Anode

    $12.99 - $17.62
    0
  33. Camp Hull Sacrificial Anode - A24

    $13.02
    1
  34. Sleipner Bow Thruster Anode - Zinc - SM61180

    $13.05
    0
  35. Sleipner Replacement Bow Thruster Aluminum Alloy Anode - SM71190A

    $13.05
    4
  36. Honda OEM Sacrificial Anode - 41106-935-812

    $13.16
    0
  37. Martyr Mercury Zinc Trim Tab Sacrificial Anode - CM822157C2Z

    $13.31
    1
  38. Camp Maxi-Prop Propeller Sacrificial Anode - 63M

    $13.40
    1
  39. Camp Maxi-Prop Propeller Sacrificial Anode - 63M2

    $13.40
  40. Martyr Bennett Trim Tab Sacrificial Anode - CMBNT1AZ

    $13.40
  41. Martyr Mercruiser Outdrive Cutdown Skeg Sacrificial Anode - CM46399Z

    $13.45
    0
  42. Martyr Medium Teardrop Style Hull Sacrificial Anode - CMT21

    $13.64
    0
  43. Camp Donut Collar Sacrificial Anode - 7/8" - C2

    $13.92
    0
  44. Camp Keel Cooler Sacrificial Anode

    $14.13 - $19.33
  45. Sleipner Bow Thruster Anode - Zinc - SM71180

    $14.18
    0
  46. Camp Donut Collar Sacrificial Anode

    $14.30 - $67.99
    2
  47. Camp Mercury Flat Outboard Trim Tab Sacrificial Anode - A76214

    $14.31
  48. Camp Mercury Outdrive Flat Trim Tab Sacrificial Anode

    $14.31

About Anodes

Zincs & Anodes

Zincs and boat anodes are the hidden protectors of our boats. Zincs are made in many different shapes and sizes in order to fit where electrolysis attacks the most. Shaft anodes, on the other hand, fit inside tanks and engine blocks in order to do the same thing.

What exactly are marine anodes?

In a nutshell, electrolysis is the effect of electrical current carried through the water and into and through the hull. Electrolysis will eat away at any and almost all metals in your boat. Boat zincs and anodes draw the electrolysis away from the metals and sacrifice themselves to the corrosion.

Rudder zincs, Shaft zincs - boat anodes come in many different sizes.

Shaft anodes usually are made up of two-piece that are fitted together around the shaft. These zincs are available in sizes to fit most propeller shafts. Rudder zincs are flat like a pancake and bolt onto the rudder and hull zincs are also flat and bolt to the hull.

Plug it in and forget it!

Well, that's not necessarily true. Plug it in and check it is better. Keep in mind that zincs should be changed when about 70% corroded. Check them often to get a feel for the corrosion rate, especially if you move marinas or even docks. Water heater anodes should be removed before winterizing and engine anodes can come out if you store your boat and engine.