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247 Products

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Anodes & Zincs

Anodes & zincs for hull, shaft, prop & rudder & engine. From Canada Metal, Performance Metal, Sierra and more available

247 Products

Suzuki™ Anode Cutdown Skeg Zinc CM551259630

$5.31
SKU: 562561
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Mfr: Canada Metal (Martyr Anodes)
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Mfg# CM551259630Z
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LFS# CM551259630Z

BRP™ OMC – Johnson Evinrude Anodes CM398331

$12.50
SKU: 562578
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Mfr: Martyr Anodes
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Mfg# CM398331Z
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LFS# CM398331Z

BRP™ OMC – Johnson Evinrude Anodes CM5007089

$15.50
SKU: 562580
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Mfr: Martyr Anodes
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Mfg# CM5007089Z
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LFS# CM5007089Z

BRP™ OMC – Johnson Evinrude Anodes CM5532187J00

$3.55
SKU: 562581
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Mfr: Martyr Anodes
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Mfg# CM5532187J00Z
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LFS# CM5532187J00Z

Yamaha™ Anodes CM61A4537100

$19.75
SKU: 562582
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Mfr: Martyr Anodes
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Mfg# CM61A4537100A
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LFS# CM61A4537100A

Euro Style Limited Clearance Shaft Anode

$6.75
SKU: 562569
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Mfr: Martyr Anodes
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Mfg# CMC25EURO
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LFS# CMC25EURO

Mercury™ – Mercruiser™ Anodes CM806190

$10.50
SKU: 562576
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Mfr: Martyr Anodes
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Mfg# CM806190A
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LFS# CM806190A

Hull Anodes Weld-on Strap CMZ

$74.49
SKU: 562528
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Mfr: Martyr Anodes
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Mfg# CMZ02AA
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LFS# CMZ02AA

Martyr Engine Cooling System Anodes (with plugs) CME 1/4NPT 3/8X2-1/2

$5.95
SKU: 562563
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Mfr: Martyr Anodes
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Mfg# CME0AZ
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LFS# CME0AZ

Hull Anodes Weld-on Strap CMZ

$20.95
SKU: 562530
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Mfr: Martyr Anodes
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Mfg# CMZ04AA
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LFS# CMZ04AA

Martyr Hull Anodes CMZ26

$109.95
SKU: 562574
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Mfr: Martyr Anodes
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Mfg# CMZ26SZ
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LFS# CMZ26SZ

Martyr Propeller Nut Anodes

From: $13.50
Mfr: Martyr Anodes

Martyr Volvo Penta Ring Zinc CMV

$7.75
Mfr: Martyr Anodes

Martyr Streamlined Shaft Anodes Imperial

From: $8.95
Mfr: Martyr Anodes

Martyr Hull Anodes CMZ22

From: $72.94
Mfr: Martyr Anodes

Martyr Prop Nut Shaft Spare

From: $41.95
Mfr: Martyr Anodes

Hull Anodes Weld-on Strap CMZ, 1.37"H x 3"W x 12"L

$34.74
SKU: 562529
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Mfr: Martyr Anodes
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Mfg# CMZ03SA
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LFS# CMZ03SA

Martyr Hull Anodes CMZC7 Weld On

$38.65
SKU: 562575
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Mfr: Martyr Anodes
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Mfg# CMZC7SZ
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LFS# CMZC7SZ

Dynaplate - Grounding & Bonding Plate

From: $116.06
Mfr: Guest Marine Products

Sierra 18-6129Z Zinc Anode Kit

$48.13
SKU: 564912
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Mfr: Sierra / Seastar Solutions
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Mfg# 18-6129Z
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LFS# SIE186129Z

Martyr Anode Kit For Mercruiser Alpha Generation I, Zinc

$27.14
SKU: 565297
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Mfr: Canada Metal (Martyr Anodes)
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Mfg# CMALPHAGEN1KITA
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LFS# ALPHAGEN1KITA

Martyr CM61N4525101Z Anode Gearcase Zinc

$15.50
SKU: 565300
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Mfr: Canada Metal (Martyr Anodes)
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Mfg# CM61N4525101Z
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LFS# CM61N4525101Z

Martyr Yamaha CM6884525101A Aluminum Anode

$7.50
SKU: 565302
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Mfr: Canada Metal (Martyr Anodes)
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Mfg# CM6884525101A
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LFS# CM6884525101A

 

Marine Anodes and Zincs are necessary for preventing galvanic metal corrosion in boat drive systems. We supply anodes for outdrives, sterndrives, propeller shaft and propellers by popular brands like Canada Metals, Martyr Anodes and Aqua-Pacific.

 

Hull Anodes

 

Hull Anodes are used when you have underwater fittings bonded together electrically. The hull anode depletes instead of underwater metal fittings. These anodes must be carefully monitored to protect the propeller, through-hulls or the entire hull of metal boats.

 

Shaft and Prop Anodes

 

Shaft zincs or anodes are typically fashioned in two pieces and bolted together around the propeller shaft. Propeller zincs may be a ring zinc or a zinc prop nut. Metal rudders, struts and fins are easily protected with zinc anode disks bolted through them.

 

What is Galvanic Corrosion and Why You Need Anodes?

 

Sacrificial Zincs or Anodes are used anytime you have different metals that are physically or electrically connected and immersed in water. These submerged metals will cause some amount of electrical current to flow between them. The electrons that make up that current flow are supplied by the loss of one of the metals. Metal is lost in the form of metal ions - directly into the water! Temperature and salinity (how salty the water is) also factor into how rapidly the metal is corroded. This is called galvanic or dissimilar metal corrosion and if left unchecked, it can quickly destroy underwater metals.

 

Common metals subject to galvanic corrosion are bronze or aluminum propellers on a stainless steel shaft; but rudders, rudder fittings, metal struts, outboards, stern drives as well as heat exchangers and through-hull fititngs are also at risk. The way to counteract galvanic corrosion is to add a third metal into the circuit, one that gives up its electrons easier than the metals you want to preserve. This piece of metal is called a sacrificial anode, and most often it is zinc. In fact, most boaters refer to sacrificial anodes simply as zincs.