Anodes

  1. Martyr Yamaha Sacrificial Anode - CM6884525101Z

    $3.78
    0
  2. Martyr Engine Pencil Sacrificial Sacrificial Anode

    $3.99 - $17.50
    2
  3. 63% off

    Martyr Mercruiser Outdrive Lift-Ram Horseshoe Sacrificial Anode

    $5.30 - $15.49
    $4.34 - $15.49
    0
  4. Martyr Yamaha CMY Small Block Sacrificial Anode

    $5.02 - $8.41
  5. 9% off

    Martyr OMC Outdrive Waffle Block Sacrificial Anode - CM982277Z

    $6.20
    $5.64
    0
  6. Martyr Suzuki Donut Sacrificial Anode - CM5532187J00A

    $5.67
  7. Martyr FrigoBoat Button Sacrificial Anode - CM51525Z

    $5.72
  8. Martyr Mercruiser Outdrive Button Sacrificial Anode

    $5.99 - $7.15
    0
  9. Martyr Volvo Penta Pencil Sacrificial Anode - CM838929Z

    $6.21
  10. Martyr Rudder & Trim Tab Sacrificial Anode

    $6.45 - $93.03
    7
  11. 9% off

    Martyr Johnson & Evinrude Outboard Block Sacrificial Anode - CM398331A

    $8.10
    $7.35
    0
  12. Martyr Suzuki Block Sacrificial Anode - CM5532095310A

    $7.61
  13. 47% off

    Martyr Mercury/Mercruiser Sacrificial Anode

    $13.31 - $14.58
    $7.67 - $14.40
    0
  14. Martyr Small Teardrop Style Hull Sacrificial Anode - CMT20

    $7.72
    0
  15. Martyr Honda/Yamaha Sacrificial Anode

    $8.00 - $11.80
    0
  16. 53% off

    Martyr Honda/Mercury Sacrificial Anode

    $9.25 - $17.38
    $8.09 - $9.25
    0
  17. Martyr Sea Strainer Sacrificial Anode

    $8.66 - $11.46
  18. Martyr Suzuki Sacrificial Anode - CM5532095310Z

    $8.79
    0
  19. Martyr BRP Johnson/Evinrude Sacrificial Anode - CM123009Z

    $9.73
    0
  20. Martyr Suzuki Trim Tab Skeg Sacrificial Anode

    $9.81 - $14.79
  21. Martyr Hull Plate Sacrificial Anode

    $10.06 - $45.38
  22. Martyr Mercury Button Sacrificial Anode - CM55989M

    $10.58
  23. Martyr Volvo/Penta Outdrive Folding Prop Sacrificial Anode - CM852018Z

    $10.65
    0
  24. Martyr Honda Trim Tab Skeg Sacrificial Anode

    $11.42 - $21.67
  25. 45% off

    Martyr Small Plate Hull Sacrificial Anode - Type M - CMPMWZ

    $21.60
    $11.80
    0
  26. 9% off

    Martyr Mercury/Mercruiser/Honda Sacrificial Anode

    $13.48 - $28.14
    $12.19 - $28.14
    0
  27. Martyr Volvo Penta Medium Ring Sacrificial Anode

    $12.68 - $18.84
  28. Martyr Mercury Bravo Trim Tab Sacrificial Anode

    $12.82 - $15.13
  29. Martyr Johnson/Evinrude Cavitation Plate Sacrificial Anode

    $12.83 - $15.07
  30. Martyr Mercury Bravo III Propeller Nut Sacrificial Anode

    $12.88 - $22.98
  31. Martyr Bolt-On Hull Sacrificial Anode

    $12.97 - $109.80
  32. Martyr Imperial Streamlined Shaft Sacrificial Anode

    $13.10 - $123.87
    8
  33. Martyr Volvo Penta Triangle Sacrificial Anode - CM872793Z

    $13.10
  34. Martyr Suzuki Trim Tab Skeg Sacrificial Anode - CM5512587D00Z

    $13.55
  35. Martyr BRP Johnson/Evinrude Block Sacrificial Anode

    $13.83 - $18.27
  36. Martyr Mercury/Mercruiser Plate Style Sacrificial Anode - CM34762Z

    $14.08
    0
  37. 58% off

    Martyr Mercruiser Outdrive Plate Sacrificial Anode

    $24.85 - $34.20
    $14.26 - $22.42
    0
  38. Martyr OMC Cobra Sacrificial Anode

    $14.43 - $18.62
  39. Martyr Max-Prop Anode

    $14.51 - $35.60
    0
  40. Martyr Yamaha Gimbal Housing Nut Sacrificial Anode - CM68V1132501A

    $14.56
  41. 50% off

    Martyr Yamaha Skeg Sacrificial Anode

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

    $15.09 - $35.60
    0
  43. Martyr Volvo Penta Upper Gearcase Sacrificial Anode

    $15.59 - $21.84
  44. Martyr De-Icer Sacrificial Anode

    $15.70
  45. Martyr Mercury Outboard Transom Bar Sacrificial Anode

    $15.84 - $20.83
    0
  46. Martyr Mercury Zinc Trim Tab Sacrificial Anode - CM822157C2Z

    $16.01
  47. Martyr Limited Clearance Sacrificial Shaft Donut Collar Anode

    $16.05 - $60.80
    5
  48. Martyr Mercruiser Outdrive Cutdown Skeg Sacrificial Anode - CM46399Z

    $16.08
    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.