Anodes

  1. 18% off

    Martyr Streamlined Shaft Sacrificial Anode

    $8.86 - $68.99
    $8.86 - $68.99
    3
  2. 9% off

    Martyr Rudder & Trim Tab Sacrificial Anode

    $4.12 - $63.99
    $4.12 - $63.99
    1
  3. 19% off

    Martyr Diver's Dream Hull Plate Sacrificial Anode

    $35.99 - $81.99
    $35.99 - $81.99
    0
  4. Seaward Water Heater Sacrificial Anode - 74556

    $29.99
    0
  5. Sleipner Replacement Bow Thruster Aluminum Alloy Anode - SM71190A

    $16.77
    2
  6. 53% off

    Martyr Limited Clearance Sacrificial Shaft Donut Collar Anode

    $11.31 - $25.99
    $6.04 - $25.99
    3
  7. Vetus Replacement Bow Thruster Zinc Anode

    $60.99 - $71.99
    0
  8. Martyr Max-Prop Anode

    $9.70 - $24.99
    0
  9. Martyr Grouper Style Universal Sacrificial Anode

    $51.99 - $77.99
    0
  10. Martyr Marine Z Engine Pencil Sacrificial Anode

    $3.65 - $10.45
    1
  11. Performance Metals Yanmar Saildrive Split Ring Anode

    $40.99 - $42.99
    0
  12. Lewmar Thruster Zinc Anode Kit

    $20.99 - $58.99
    1
  13. Kuuma Anode Rod with Drain - 11916

    $23.99
    0
  14. Raritan Replacement Water Heater Sacrificial Anode - 1790010

    $64.99
    0
  15. 19% off

    Performance Metals Boater's Dream Anode

    $68.99 - $108.99
    $55.88 - $88.28
    0
  16. 19% off

    Performance Metals Hull Plate Divers Anode

    $39.99 - $63.99
    $32.39 - $51.83
    0
  17. Martyr Prop Nut Sacrificial Anode

    $10.27 - $23.99
    0
  18. Martyr Bennett Trim Tab Sacrificial Anode Kit

    $19.82 - $20.99
    1
  19. Martyr Medium Streamlined Plate Hull Sacrificial Anode - CMN1Z

    $21.99
    0
  20. 19% off

    Martyr Prop Nut Sacrificial Anode - Complete Replacement Kit

    $36.99 - $59.99
    $29.96 - $59.99
    1
  21. 45% off

    Performance Metals "Red Dot" Sacrificial Shaft Anode

    $8.35 - $20.99
    $5.00 - $20.99
    1
  22. Martyr Streamlined Plate Hull Sacrificial Anode - CMMZC406

    $75.99
    0
  23. Sleipner Bow Thruster Anode - Aluminum - SM201180A

    $35.99
    0
  24. 48% off

    Performance Metals "Red Dot" Rudder/Trim Tab Anode

    $4.46 - $40.99
    $4.46 - $21.99
    0
  25. Raritan Replacement Water Heater Sacrificial Anode - 1790610

    $66.99
    0
  26. Vetus Replacement Bow Thruster Zinc Anode - SET0151

    $79.99
    0
  27. Lenco Trim Tab Sacrificial Anode (2-Pack) - 15093-001

    $36.99
    0
  28. 5% off

    Torqeedo Folding Propeller Anode Set - 1965-00

    $69.00
    $64.99
    0
  29. Isotherm Refrigeration System Zinc Anode - SBE00006AA

    $35.00
    0
  30. Martyr Yamaha Transom Sacrificial Anode

    $15.43 - $20.99
    0
  31. Performance Metals "Red Dot" Mercruiser Sacrificial Anode Kit - 10059A

    $52.99
    0
  32. 19% off

    Martyr Small Streamlined Plate Hull Sacrificial Anode

    $31.99 - $34.99
    $28.34 - $31.99
    0
  33. 19% off

    Martyr Streamlined Plate Hull Sacrificial Anode - CMZHC3AZ

    $31.99
    $25.91
    0
  34. Lenco Trim Tab Sacrificial Anode (2-Pack) - 15092-001

    $19.94
    0
  35. Sleipner Bow Thruster Anode - Aluminum - SM31180A

    $11.63
    0
  36. Martyr Mercury Verado Outboard Sacrificial Anode Kit - CMVERADO6KITA

    $57.99
    0
  37. Martyr Streamlined Plate Hull Sacrificial Anode - CMZHC2AZ

    $18.36
    0
  38. Performance Metals "Red Dot" Mercruiser Sacrificial Anode Kit - 10165A

    $50.99
    0
  39. Martyr Diver's Dream Mini Hull Plate Sacrificial Anode

    $19.66 - $23.99
    0
  40. Martyr Medium Teardrop Style Hull Sacrificial Anode - CMT21

    $11.17
    0
  41. Martyr Mercruiser Outdrive Sacrificial Anode Kit - Bravo III

    $51.99 - $104.99
    0
  42. 19% off

    Martyr Yamaha Sacrificial Anode Kit - CMY200250KITA

    $34.99
    $28.34
    0
  43. Sleipner Bow Thruster Anode - Zinc - SM61180

    $16.77
    0
  44. Torqeedo Sacrificial AL Anode - 1905-00

    $33.99
    0
  45. 19% off

    Performance Metals "Red Dot" Volvo/Penta Sacrificial Anode - 10278A

    $54.99
    $44.54
    0
  46. Martyr 30 mm (1 3/16") Beneteau Prop Nut Sacrificial Anode - Complete Assembly - CMLAEC3300

    $57.99
    0
  47. Martyr Streamlined Plate Hull Sacrificial Anode - CMM30

    $21.99
    0
  48. Martyr Volvo/Penta SX Outdrive Bar Sacrificial Anode Kit - CMSXKITA

    $54.99
    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.