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Sacrificial Anodes

Sacrificial Anodes

Marine sacrificial anodes for corrosion protection. Find zinc anodes, aluminum anodes, and magnesium anodes to protect your engine, outdrive, propeller, shaft, and underwater metal components from galvanic corrosion with high-quality replacement anodes in various sizes and configurations for saltwater and freshwater applications.

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⚠️ Always confirm anode material, dimensions, and application for your water type and vessel setup.

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Martyr Zinc Donut Anode 1-3/8" ID x 1-1/4" x 3" CMT-C06

Original price $33.50 - Original price $33.50
Original price $33.50
$33.50
$33.50 - $33.50
Current price $33.50
Only 5 left!

Martyr CMT-C06 zinc donut shaft anode, 1-3/8" ID × 1-1/4" × 3". Sacrificial zinc anode for marine propeller shaft corrosion protection. Match by sh...

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Original price $33.50 - Original price $33.50
Original price $33.50
$33.50
$33.50 - $33.50
Current price $33.50

Martyr Zinc Donut shaft Anode 3" ID x 1-1/2" x 5" CMT-C13

Original price $82.46 - Original price $82.46
Original price $82.46
$82.46
$82.46 - $82.46
Current price $82.46
Only 2 left!

Martyr CMT-C13 zinc donut shaft anode, 3" ID × 1-1/2" × 5". OEM-grade sacrificial zinc anode for marine propeller shaft corrosion protection. Match...

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Original price $82.46 - Original price $82.46
Original price $82.46
$82.46
$82.46 - $82.46
Current price $82.46

Zinc Shaft Collar Anode 30mm ID – CMT-C30

Original price $30.74 - Original price $30.74
Original price $30.74
$30.74
$30.74 - $30.74
Current price $30.74
Only 1 left!

Martyr Zinc Shaft Collar Anode 30mm ID – CMT-C30Sacrificial zinc donut/collar anode for 30mm metric propeller shafts. Slides over the shaft to prot...

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Original price $30.74 - Original price $30.74
Original price $30.74
$30.74
$30.74 - $30.74
Current price $30.74

Zinc Shaft Collar Anode 7/8" ID x 1" x 2-1/8" – CMT-C02

Original price $19.21 - Original price $19.21
Original price $19.21
$19.21
$19.21 - $19.21
Current price $19.21
Only 5 left!

Martyr CMT-C02 is a zinc limited-clearance shaft collar anode designed for 7/8" propeller shafts. This split collar shaft anode helps protect prope...

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Original price $19.21 - Original price $19.21
Original price $19.21
$19.21
$19.21 - $19.21
Current price $19.21

Zinc Diver's Dream HD Hull Anode 1" x 12" x 6" – CMT-DIVERHZ

Original price $210.67 - Original price $210.67
Original price $210.67
$210.67
$210.67 - $210.67
Current price $210.67
Only 2 left!

Martyr CMT-DIVERHZ is a zinc Diver’s Dream heavy-duty hull anode measuring 1" x 12" x 6". This bolt-on hull/transom-style sacrificial anode is desi...

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Original price $210.67 - Original price $210.67
Original price $210.67
$210.67
$210.67 - $210.67
Current price $210.67

Aluminum Hull Strap Anode 5" x 2-1/4" x 1" – CMT-Z06AZ

Original price $38.74 - Original price $38.74
Original price $38.74
$38.74
$38.74 - $38.74
Current price $38.74
Only 2 left!

Martyr CMT-Z06AZ is an aluminum-strap zinc hull anode designed for weld-on hull and structure protection in saltwater service. This semi-streamline...

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Original price $38.74 - Original price $38.74
Original price $38.74
$38.74
$38.74 - $38.74
Current price $38.74

Zinc Hull Strap Anode 12" x 3" x 1-1/4" – CMT-Z03SZ

Original price $105.51 - Original price $105.51
Original price $105.51
$105.51
$105.51 - $105.51
Current price $105.51
Only 2 left!

Martyr CMT-Z03SZ is a zinc hull strap anode designed for weld-on hull and structure protection in saltwater service. This semi-streamlined strap-st...

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Original price $105.51 - Original price $105.51
Original price $105.51
$105.51
$105.51 - $105.51
Current price $105.51

Zinc Hull Strap Anode 5" x 2-1/4" x 1" – CMT-Z06SZ

Original price $38.88 - Original price $38.88
Original price $38.88
$38.88
$38.88 - $38.88
Current price $38.88
Only 2 left!

Martyr CMT-Z06SZ is a zinc hull strap anode designed for weld-on hull and structure protection in saltwater service. This semi-streamlined strap-st...

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Original price $38.88 - Original price $38.88
Original price $38.88
$38.88
$38.88 - $38.88
Current price $38.88

Zinc OMC Long Bar Trim/Tilt Anode – CMT-433580Z

Original price $28.12 - Original price $28.12
Original price $28.12
$28.12
$28.12 - $28.12
Current price $28.12
Only 1 left!

Martyr CMT-433580Z is a zinc long bar trim/tilt anode designed for OMC, Johnson, and Evinrude power trim and tilt bracket applications. This is a b...

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Original price $28.12 - Original price $28.12
Original price $28.12
$28.12
$28.12 - $28.12
Current price $28.12

Zinc OMC Waffle Bar Anode – CMT-367Z

Original price $25.42 - Original price $25.42
Original price $25.42
$25.42
$25.42 - $25.42
Current price $25.42
Only 2 left!

Martyr CMT-E00 is a zinc pencil anode sized 1/8" NPT x 1/4" x 2", designed to help protect marine engine cooling passages, heat exchangers, oil coo...

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Original price $25.42 - Original price $25.42
Original price $25.42
$25.42
$25.42 - $25.42
Current price $25.42

Zinc Pencil Anode 1/8" NPT x 1/4" x 2" – CMT-E00

Original price $9.37 - Original price $9.37
Original price $9.37
$9.37
$9.37 - $9.37
Current price $9.37
in stock

Martyr CMT-E00 is a zinc pencil anode sized 1/8" NPT x 1/4" x 2", designed to help protect marine engine cooling passages, heat exchangers,...

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Original price $9.37 - Original price $9.37
Original price $9.37
$9.37
$9.37 - $9.37
Current price $9.37

Zinc Pencil Anode 3/4" NPT x 3/4" x 3-3/8" – CMT-E4

Original price $28.84 - Original price $28.84
Original price $28.84
$28.84
$28.84 - $28.84
Current price $28.84
in stock

Martyr CMT-E4 is a zinc pencil anode sized 3/4" NPT x 3/4" x 3-3/8", used to help protect marine engine cooling passages, heat exchangers, oil cool...

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Original price $28.84 - Original price $28.84
Original price $28.84
$28.84
$28.84 - $28.84
Current price $28.84

Zinc Pencil Anode 3/8" NPT x 1/2" x 1" – CMT-E1G

Original price $11.37 - Original price $11.37
Original price $11.37
$11.37
$11.37 - $11.37
Current price $11.37
Only 1 left!

Martyr Zinc Pencil Anode 3/8" NPT × 1/2" × 1" – CMT-E1GShort-body sacrificial zinc pencil anode for engine cooling systems, heat exchangers, and ra...

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Original price $11.37 - Original price $11.37
Original price $11.37
$11.37
$11.37 - $11.37
Current price $11.37

Zinc Pencil Anode 3/8" NPT x 1/2" x 2" – CMT-E1

Original price $11.56 - Original price $11.56
Original price $11.56
$11.56
$11.56 - $11.56
Current price $11.56
Out of stock

Martyr CMT-E1 is a zinc pencil anode sized 3/8" NPT x 1/2" x 2", used to help protect marine engine cooling passages, heat exchangers, and related ...

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Original price $11.56 - Original price $11.56
Original price $11.56
$11.56
$11.56 - $11.56
Current price $11.56
Sold out

Zinc Plate Anode 3/4" x 6" x 12" – CMT-P075612Z

Original price $75.64 - Original price $75.64
Original price $75.64
$75.64
$75.64 - $75.64
Current price $75.64
Only 1 left!

Martyr CMT-P075612Z is a zinc plate anode measuring 3/4" x 6" x 12", built for sacrificial corrosion protection on properly bonded metal surfaces i...

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Original price $75.64 - Original price $75.64
Original price $75.64
$75.64
$75.64 - $75.64
Current price $75.64

Zinc Propeller Nut Assembly A 1/2"-NC13 – CMT-PNAZC13

Original price $47.09 - Original price $47.09
Original price $47.09
$47.09
$47.09 - $47.09
Current price $47.09
Only 1 left!

Martyr CMT-PNAZC13 is a zinc propeller nut assembly designed for shaft-driven propeller applications using a 1/2"-13 NC thread. This complete zinc/...

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Original price $47.09 - Original price $47.09
Original price $47.09
$47.09
$47.09 - $47.09
Current price $47.09

Zinc Propeller Nut Anode A – CMT-PNZA

Original price $12.51 - Original price $12.51
Original price $12.51
$12.51
$12.51 - $12.51
Current price $12.51
Only 3 left!

The Martyr CMT-PNZA is a zinc replacement propeller nut anode in the A-style pattern, designed to help protect propeller shafts and propellers from...

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Original price $12.51 - Original price $12.51
Original price $12.51
$12.51
$12.51 - $12.51
Current price $12.51

Zinc Propeller Nut Anode B – CMT-PNZB

Original price $17.84 - Original price $17.84
Original price $17.84
$17.84
$17.84 - $17.84
Current price $17.84
in stock

The Martyr CMT-PNZB is a zinc replacement propeller nut anode in the B-style pattern, designed to help protect propeller shafts and propellers from...

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Original price $17.84 - Original price $17.84
Original price $17.84
$17.84
$17.84 - $17.84
Current price $17.84

Zinc Propeller Nut C Replacement – CMT-PNZC

Original price $25.48 - Original price $25.48
Original price $25.48
$25.48
$25.48 - $25.48
Current price $25.48
Only 4 left!

The Martyr CMT-PNZC is a zinc replacement propeller nut anode in the C-style pattern, designed to help protect propeller shafts and propellers from...

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Original price $25.48 - Original price $25.48
Original price $25.48
$25.48
$25.48 - $25.48
Current price $25.48

Martyr Zinc Propeller Nut Replacement F Style CMT-PNZF

Original price $37.39 - Original price $37.39
Original price $37.39
$37.39
$37.39 - $37.39
Current price $37.39
Only 2 left!

The Martyr CMT-PNZF is a zinc replacement propeller nut anode in the F-style pattern, designed to help protect propeller shafts and propellers from...

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Original price $37.39 - Original price $37.39
Original price $37.39
$37.39
$37.39 - $37.39
Current price $37.39

Martyr Zinc Propeller Nut Anode H Style Replacement CMT-PNZH

Original price $77.29 - Original price $77.29
Original price $77.29
$77.29
$77.29 - $77.29
Current price $77.29
Only 2 left!

Martyr zinc sacrificial propeller nut replacement anode (part #CMT-PNZH / PN-H-ZN), H-style pattern. Replacement anode only — not the complete prop...

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Original price $77.29 - Original price $77.29
Original price $77.29
$77.29
$77.29 - $77.29
Current price $77.29

Martyr Zinc Thruster Body Anode Side-Power 71190A CMT-SGSL565Z

Original price $13.19 - Original price $13.19
Original price $13.19
$13.19
$13.19 - $13.19
Current price $13.19
in stock

The Martyr CMT-SGSL565Z is a zinc thruster body anode for select Side-Power / Sleipner bow thruster applications. It cross-references to Side-Power...

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Original price $13.19 - Original price $13.19
Original price $13.19
$13.19
$13.19 - $13.19
Current price $13.19

Martyr Zinc Thruster Propeller Anode Side-Power 201180 CMT-SGSP626Z

Original price $22.09 - Original price $22.09
Original price $22.09
$22.09
$22.09 - $22.09
Current price $22.09
in stock

The Martyr CMT-SGSP626Z is a zinc thruster propeller anode for select Side-Power / Sleipner thruster applications. It cross-references to Side-Powe...

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Original price $22.09 - Original price $22.09
Original price $22.09
$22.09
$22.09 - $22.09
Current price $22.09

Martyr Zinc Streamlined Shaft Anode 1in 25mm CMT-X03

Original price $19.71 - Original price $19.71
Original price $19.71
$19.71
$19.71 - $19.71
Current price $19.71
Only 4 left!

Martyr zinc streamlined shaft anode (part #CMT-X03) for 1" (25mm) propeller shafts. Split clamp-on design with streamlined profile to minimize drag...

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Original price $19.71 - Original price $19.71
Original price $19.71
$19.71
$19.71 - $19.71
Current price $19.71