Anodes

  1. Martyr Imperial Streamlined Shaft Sacrificial Anode

    $13.10 - $123.87
    8
  2. Martyr Rudder & Trim Tab Sacrificial Anode

    $6.45 - $93.03
    7
  3. Martyr Diver's Dream Hull Plate Sacrificial Anode

    $41.18 - $178.46
    0
  4. Martyr Grouper Style Universal Sacrificial Anode

    $74.80 - $111.20
    0
  5. Martyr Streamlined Plate Hull Sacrificial Anode - CMMZC406

    $108.43
    0
  6. Martyr Max-Prop Anode

    $14.51 - $35.60
    0
  7. Martyr Limited Clearance Sacrificial Shaft Donut Collar Anode

    $16.05 - $60.80
    5
  8. Lewmar Thruster Zinc Anode Kit

    $29.98 - $83.18
    2
  9. Martyr Engine Pencil Sacrificial Sacrificial Anode

    $3.99 - $17.50
    2
  10. Martyr Prop Nut Sacrificial Anode - Complete Replacement Kit

    $52.38 - $84.60
    1
  11. Martyr Propeller Nut Sacrificial Anode

    $15.09 - $35.60
    0
  12. Martyr Medium Streamlined Plate Hull Sacrificial Anode - CMN1Z

    $31.40
    2
  13. Martyr Bennett Trim Tab Sacrificial Anode Kit

    $28.58 - $31.38
    1
  14. 18% off

    Martyr Small Streamlined Plate Hull Sacrificial Anode

    $45.41 - $49.58
    $40.27 - $45.41
    0
  15. Martyr Yamaha Transom Sacrificial Anode

    $22.37 - $30.00
    0
  16. Martyr Streamlined Plate Hull Sacrificial Anode - CMZHC2AZ

    $26.53
    0
  17. Martyr Mercury Verado Outboard Sacrificial Anode Kit - CMVERADO6KITA

    $84.60
    0
  18. Martyr Yamaha Sacrificial Anode Kit - CMY200250KITA

    $46.80
    0
  19. Martyr Mercruiser Outdrive Sacrificial Anode Kit - Bravo III

    $73.40 - $149.00
    0
  20. Martyr Suzuki Sacrificial Anode Kit - 150-350 HP - CMSZ150350KITZ

    $46.83
  21. Martyr Medium Teardrop Style Hull Sacrificial Anode - CMT21

    $16.35
    0
  22. Martyr Streamlined Plate Hull Sacrificial Anode - CMZHC5AZ

    $69.22
    0
  23. Martyr Diver's Dream Mini Hull Plate Sacrificial Anode

    $28.60 - $34.20
    0
  24. Martyr Mercury Outboard Transom Bar Sacrificial Anode

    $15.82 - $20.83
    0
  25. Martyr Metric Streamlined Shaft Sacrificial Anode

    $18.73 - $21.74
  26. 18% off

    Martyr Mercruiser Outdrive Sacrificial Anode Kit - Alpha I Gen II

    $91.60 - $156.00
    $74.31 - $156.00
    0
  27. Martyr Streamlined Plate Hull Sacrificial Anode - CMZHC3AZ

    $46.80
    0
  28. 18% off

    Martyr Mercury Outdrive Sacrificial Anode Kit

    $63.60 - $143.38
    $61.10 - $143.38
    0
  29. Martyr Flex-O-Fold Propeller Nut Sacrificial Anode

    $36.98 - $38.38
  30. 50% off

    Martyr Yamaha Skeg Sacrificial Anode

    $24.64 - $39.78
    $14.99 - $32.34
    0
  31. Martyr Propeller Nut Replacement Sacrificial Anode

    $22.97 - $56.61
  32. Martyr Volvo Penta SX-A/DPS Sacrificial Anode Kit

    $45.38 - $59.38
  33. 18% off

    Martyr Semi-Streamlined Plate Hull Sacrificial Anode - CMZ24BSZ

    $230.28
    $186.66
    0
  34. Martyr Small Teardrop Style Hull Sacrificial Anode - CMT20

    $7.72
    0
  35. 31% off

    Martyr Honda Sacrificial Anode Kit

    $66.40 - $73.38
    $50.05 - $66.40
    0
  36. Martyr Honda/Yamaha Sacrificial Anode

    $8.00 - $11.80
    0
  37. 9% off

    Martyr Mercury/Mercruiser/Honda Sacrificial Anode

    $13.48 - $28.14
    $12.19 - $28.14
    0
  38. Martyr Volvo/Penta Outdrive Bar Sacrificial Anode

    $27.51 - $48.20
    0
  39. 42% off

    Martyr Yamaha Sacrificial Anode Kit

    $32.78 - $94.43
    $19.51 - $94.43
    1
  40. Martyr Volvo Penta Folding Propeller Sacrificial Anode Kit - CM3858399KITZ

    $28.07
  41. Martyr De-Icer Sacrificial Anode

    $15.70
  42. Martyr Imperial Clamp Shaft Sacrificial Anode

    $32.78 - $73.38
    1
  43. Martyr Beneteau Prop Nut Sacrificial Anode - Complete Assembly - 30 mm (1 3/16") - CMLAEC3300

    $81.78
    0
  44. Martyr Beneteau Prop Nut Sacrificial Anode - Complete Assembly - CMLAEC3250

    $59.38
    1
  45. Martyr BRP Johnson/Evinrude Sacrificial Anode - CM433580Z

    $22.72
    0
  46. Martyr Mercruiser Outdrive Block Sacrificial Anode - CM43994Z

    $23.93
    0
  47. Martyr Streamlined Plate Hull Sacrificial Anode - CMM30

    $31.40
    0
  48. 29% off

    Martyr Suzuki Sacrificial Anode Kit

    $27.38 - $41.18
    $27.38 - $34.20
    0
 
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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.