Anodes

  1. 36% off

    Martyr Mercruiser Outdrive Button Sacrificial Anode

    $6.80 - $7.35
    $4.64 - $6.80
    0
  2. 32% off

    Martyr Johnson & Evinrude Outboard Block Sacrificial Anode - CM398331A

    $8.16
    $5.51
    0
  3. 68% off

    Martyr Honda/Mercury Sacrificial Anode

    $10.78 - $17.50
    $5.60 - $10.78
    0
  4. 61% off

    Martyr Mercury/Mercruiser Sacrificial Anode

    $13.40 - $16.97
    $5.60 - $16.97
    0
  5. 38% off

    Martyr Mercruiser Outdrive Lift-Ram Horseshoe Sacrificial Anode

    $6.03 - $16.09
    $6.03 - $12.53
    0
  6. Martyr Suzuki Donut Sacrificial Anode - CM5532187J00A

    $6.52
  7. 58% off

    Performance Metals "Red Dot" Sacrificial Shaft Anode

    $16.09 - $30.19
    $6.68 - $30.19
    3
  8. 44% off

    Martyr Rudder & Trim Tab Sacrificial Anode

    $6.84 - $107.79
    $6.84 - $89.41
    22
  9. Martyr Small Teardrop Style Hull Sacrificial Anode

    $7.83 - $8.87
  10. 33% off

    Martyr Mercury/Mercruiser/Honda Sacrificial Anode

    $13.57 - $31.60
    $9.03 - $31.60
    0
  11. Martyr Suzuki Block Sacrificial Anode - CM5532095310A

    $9.07
  12. 73% off

    Martyr Mercruiser Outdrive Plate Sacrificial Anode

    $25.02 - $34.44
    $9.28 - $16.47
    0
  13. 23% off

    Martyr Honda/Yamaha Sacrificial Anode

    $9.55 - $12.64
    $9.55
    0
  14. Martyr Sea Strainer Sacrificial Anode

    $10.05 - $12.82
  15. 64% off

    Martyr Yamaha Skeg Sacrificial Anode

    $26.32 - $40.06
    $10.65 - $37.24
    0
  16. Seachoice Rudder & Trim Tab Anode with Allen Screw

    $11.38 - $69.67
  17. Martyr Hull Plate Sacrificial Anode

    $11.72 - $49.93
  18. 63% off

    Performance Metals "Red Dot" Rudder/Trim Tab Anode

    $12.44 - $58.41
    $12.44 - $33.01
    1
  19. 24% off

    Martyr Limited Clearance Sacrificial Shaft Donut Collar Anode

    $16.79 - $65.46
    $12.74 - $65.46
    7
  20. Sleipner Bow Thruster Anode - Aluminum - SM31180A

    $12.85
    5
  21. Martyr Honda Trim Tab Skeg Sacrificial Anode

    $13.74 - $25.51
  22. Martyr Mercury Bravo III Propeller Nut Sacrificial Anode

    $14.15 - $23.71
  23. Martyr Imperial Streamlined Shaft Sacrificial Anode

    $14.23 - $167.05
    29
  24. 57% off

    Martyr Yamaha Sacrificial Anode Kit

    $34.42 - $110.61
    $14.57 - $110.61
    4
  25. Martyr Johnson/Evinrude Cavitation Plate Sacrificial Anode

    $14.84 - $16.46
  26. Martyr Volvo Penta Medium Ring Sacrificial Anode

    $14.90 - $20.70
  27. Martyr Mercury Bravo Trim Tab Sacrificial Anode

    $14.99 - $16.31
  28. Martyr Bolt-On Hull Sacrificial Anode

    $15.02 - $117.63
  29. Martyr Max-Prop Anode

    $15.36 - $38.67
    2
  30. Martyr Volvo Penta Upper Gearcase Sacrificial Anode

    $16.19 - $23.40
  31. Seachoice Streamlined Shaft Anodes with Allen Screw

    $16.46 - $111.97
  32. Martyr BRP Johnson/Evinrude Block Sacrificial Anode

    $16.77 - $21.31
  33. Martyr OMC Cobra Sacrificial Anode

    $17.50 - $21.92
  34. Martyr Yamaha Gimbal Housing Nut Sacrificial Anode - CM68V1132501A

    $17.72
  35. Martyr De-Icer Sacrificial Anode

    $17.81
  36. Martyr Mercury Outboard Transom Bar Sacrificial Anode

    $18.52 - $24.46
    0
  37. Sleipner Replacement Bow Thruster Aluminum Alloy Anode - SM71190A

    $19.00
    4
  38. Martyr Yamaha Bar Sacrificial Anode - CM6H14525102A

    $20.18
  39. Martyr Johnson/Evinrude Bearing Carrier Sacrificial Anode - CM398873A

    $20.75
  40. 47% off

    Performance Metals "Red Dot" Volvo/Penta Sacrificial Anode - 10274A

    $40.08
    $21.08
    0
  41. Martyr Mercury Bravo I Bearing Carrier Sacrificial Anode

    $21.45 - $34.42
  42. 44% off

    Martyr Suzuki Sacrificial Anode Kit

    $33.01 - $41.47
    $22.95 - $37.26
    0
  43. Martyr Suzuki Sacrificial Anode Kit - 40-50 HP - CMSZ4050KITA

    $23.92
  44. Martyr Johnson Evinrude Transom Bar Sacrificial Anode

    $24.12 - $30.19
  45. Martyr Nissan/Tohatsu Transom Bar Sacrificial Anode - CM3C7602181A0A

    $25.13
  46. Martyr Yamaha Trim Tab Sacrificial Anode

    $25.15 - $25.87
  47. Martyr Propeller Nut Replacement Sacrificial Anode

    $25.53 - $55.57
  48. Martyr Mercury Driveshaft Housing Sacrificial Anode

    $25.57 - $33.01
 
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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.