Anodes

  1. Martyr Mercury Bravo III Propeller Nut Sacrificial Anode

    $12.53 - $22.33
  2. Martyr Bolt-On Hull Sacrificial Anode

    $12.63 - $106.09
  3. 18% off

    Martyr Imperial Streamlined Shaft Sacrificial Anode

    $12.74 - $125.31
    $12.74 - $125.31
    7
  4. Martyr Volvo Penta Triangle Sacrificial Anode - CM872793Z

    $12.74
  5. Honda OEM Sacrificial Anode - 41106-935-812

    $12.91
    0
  6. 17% off

    Mercury OEM Replacement Sacrificial Anode - 875208

    $15.65
    $12.91
    0
  7. Yamaha Sacrificial Anode - 62Y-11325-00-00

    $12.91
    0
  8. Martyr Suzuki Trim Tab Skeg Sacrificial Anode - CM5512587D00Z

    $13.16
  9. Martyr BRP Johnson/Evinrude Block Sacrificial Anode

    $13.45 - $17.75
  10. Camp Mercury Outboard Sacrificial Anode - 826134

    $13.63
  11. Martyr Mercury/Mercruiser Plate Style Sacrificial Anode - CM34762Z

    $13.68
    0
  12. 58% off

    Martyr Mercruiser Outdrive Plate Sacrificial Anode

    $24.33 - $33.48
    $13.97 - $21.96
    0
  13. Martyr OMC Cobra Sacrificial Anode

    $14.02 - $18.09
  14. Martyr Yamaha Gimbal Housing Nut Sacrificial Anode - CM68V1132501A

    $14.15
  15. Tohatsu Nissan Outboard Motor Replacement OEM Sacrificial Anode - 338602182M

    $14.28
    0
  16. Martyr Prop Nut Sacrificial Anode

    $14.67 - $33.48
    0
  17. 49% off

    Martyr Yamaha Skeg Sacrificial Anode

    $24.12 - $38.94
    $14.68 - $31.66
    0
  18. Camp Hull Sacrificial Anode - A24

    $15.12
    0
  19. Martyr Volvo Penta Upper Gearcase Sacrificial Anode

    $15.16 - $21.22
  20. Martyr De-Icer Sacrificial Anode

    $15.27
  21. Martyr Mercury Outboard Transom Bar Sacrificial Anode

    $15.38 - $20.24
    0
  22. Camp Suzuki Outboard Small Sacrificial Anode - 55320-95310

    $15.49
  23. Martyr Mercury Zinc Trim Tab Sacrificial Anode - CM822157C2Z

    $15.57
  24. Martyr Mercruiser Outdrive Cutdown Skeg Sacrificial Anode - CM46399Z

    $15.64
    0
  25. 14% off

    Mercury OEM Replacement Sacrificial Anode - 42121Q02

    $18.39
    $15.65
    0
  26. 11% off

    BRP Johnson/Evinrude Sacrificial Anode - 338635

    $17.71
    $15.67
    0
  27. Martyr Max-Prop Anode

    $15.76 - $38.96
    0
  28. Martyr Mercury Alpha Trim Cylinder Sacrificial Anode

    $15.85 - $45.79
  29. Martyr Medium Teardrop Style Hull Sacrificial Anode - CMT21

    $15.90
    0
  30. Martyr Limited Clearance Sacrificial Shaft Donut Collar Anode

    $15.96 - $64.99
    5
  31. Martyr Mercury Bravo III Trim Tab Skeg Sacrificial Anode - CM762144M

    $16.02
  32. Sleipner Bow Thruster Anode - Aluminum - SM31180A

    $16.09
    0
  33. Martyr Yamaha Bar Sacrificial Anode - CM6H14525102A

    $16.15
  34. Camp Johnson & Evinrude Outboard Sacrificial Anode - C173

    $16.48
  35. Camp Maxi-Prop Propeller Sacrificial Anode - 63M

    $16.48
    1
  36. Camp Maxi-Prop Propeller Sacrificial Anode - 63M2

    $16.48
  37. Camp Maxi-Prop Propeller Sacrificial Anode - 63M3

    $16.48
  38. Martyr Johnson/Evinrude Bearing Carrier Sacrificial Anode - CM398873A

    $16.55
  39. Martyr Mercury Bravo Trim Cylinder Sacrificial Anode - CM806190M

    $16.86
  40. Martyr Volvo Penta Pencil Sacrificial Anode - CM823661Z

    $16.96
  41. Camp Mercury Outdrive Sacrificial Anode

    $17.15 - $32.09
  42. Camp Shaft Barrel Collar Sacrificial Anode

    $17.45 - $199.28
  43. Martyr Honda Skeg Sacrificial Anode - CM41107ZV500Z

    $17.82
  44. Martyr Metric Streamlined Shaft Sacrificial Anode

    $18.20 - $21.12
  45. Martyr Honda Transom Bar Sacrificial Anode

    $18.45 - $45.81
  46. Martyr Honda Wedge Sacrificial Anode

    $18.49 - $19.34
  47. Martyr Line Cutter Sacrificial Anode

    $18.75 - $24.13
  48. Camp Mercury Outboard Sacrificial Anode - 42121A2

    $18.87

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.