Skip to content
Celebrating over 50 years of Trusted Marine Service
Over 50 years of Trusted Marine Service

Anodes & Corrosion Protection

Marine anodes and corrosion-protection products for engines, drives and underwater metal components.

Shop all products ↓

Shop by engine brand

Corrosion protection guide ↗Need help? Ask our Parts Desk ↗

Filters

Martyr Rudder/Trim Tab Zinc Anode With Stainless Steel Slotted Head Sold out

Martyr Rudder/Trim Tab Zinc Anode With Stainless Steel Slotted Head

$8.89 - $8.89
$8.89
$8.89 - $8.89
$8.89
Sold out

Streamlined Rudder Anodes w/Slotted Hardware - Zinc

$8.89 - $8.89
$8.89
$8.89 - $8.89
$8.89
Sold out
Martyr Rudder/Trim Tab Zinc Anode With Stainless Steel Slotted Head Sold out

Martyr Rudder/Trim Tab Zinc Anode With Stainless Steel Slotted Head

$19.89 - $19.89
$19.89
$19.89 - $19.89
$19.89
Sold out

Streamlined Rudder Anodes w/Slotted Hardware - Zinc

$19.89 - $19.89
$19.89
$19.89 - $19.89
$19.89
Sold out
Martyr Rudder/Trim Tab Zinc Anode With Stainless Steel Slotted Head Sold out

Martyr Rudder/Trim Tab Zinc Anode With Stainless Steel Slotted Head

$27.99 - $27.99
$27.99
$27.99 - $27.99
$27.99
Sold out

Streamlined Rudder Anodes w/Slotted Hardware - Zinc

$27.99 - $27.99
$27.99
$27.99 - $27.99
$27.99
Sold out
Martyr Rudder/Trim Tab Zinc Anode With Stainless Steel Slotted Head

Martyr Rudder/Trim Tab Zinc Anode With Stainless Steel Slotted Head

$54.49 - $54.49
$54.49
$54.49 - $54.49
$54.49
6 in stock

The Martyr CMR04S is a zinc rudder anode set designed to help protect rudders and trim tabs from galvanic corrosion in saltwater use. Current produ...

View full details
$54.49 - $54.49
$54.49
$54.49 - $54.49
$54.49
Martyr Rudder/Trim Tab Zinc Anode With Stainless Steel Slotted Head
Sold out

Martyr Rudder/Trim Tab Zinc Anode With Stainless Steel Slotted Head

$73.38 - $73.38
$73.38
$73.38 - $73.38
$73.38
Sold out

Streamlined Rudder Anodes w/Slotted Hardware - Zinc

$73.38 - $73.38
$73.38
$73.38 - $73.38
$73.38
Sold out
Martyr Rudder/Trim Tab Anode With Stainless Steel Allen Head

Martyr Rudder/Trim Tab Anode With Stainless Steel Allen Head

$23.89 - $23.89
$23.89
$23.89 - $23.89
$23.89
126 in stock

Rudder & Trim Tab Anodes w/Allen Screw

$23.89 - $23.89
$23.89
$23.89 - $23.89
$23.89
Martyr Rudder/Trim Tab Anode With Stainless Steel Allen Head
Sold out

Martyr Rudder/Trim Tab Anode With Stainless Steel Allen Head

$11.69 - $11.69
$11.69
$11.69 - $11.69
$11.69
Sold out

Rudder & Trim Tab Anodes w/Allen Screw

$11.69 - $11.69
$11.69
$11.69 - $11.69
$11.69
Sold out
Martyr Rudder/Trim Tab Anode With Stainless Steel Allen Head
Sold out

Martyr Rudder/Trim Tab Anode With Stainless Steel Allen Head

$36.99 - $36.99
$36.99
$36.99 - $36.99
$36.99
Sold out

Rudder & Trim Tab Anodes w/Allen Screw

$36.99 - $36.99
$36.99
$36.99 - $36.99
$36.99
Sold out
Martyr Rudder/Trim Tab Anode With Stainless Steel Allen Head

Martyr Rudder/Trim Tab Anode With Stainless Steel Allen Head

$16.19 - $16.19
$16.19
$16.19 - $16.19
$16.19
79 in stock

Rudder & Trim Tab Anodes w/Allen Screw

$16.19 - $16.19
$16.19
$16.19 - $16.19
$16.19
Martyr Rudder/Trim Tab Anode With Stainless Steel Allen Head
Sold out

Martyr Rudder/Trim Tab Anode With Stainless Steel Allen Head

$26.89 - $26.89
$26.89
$26.89 - $26.89
$26.89
Sold out

Rudder & Trim Tab Anodes w/Allen Screw

$26.89 - $26.89
$26.89
$26.89 - $26.89
$26.89
Sold out
Martyr Rudder/Trim Tab Anode With Stainless Steel Allen Head
Sold out

Martyr Rudder/Trim Tab Anode With Stainless Steel Allen Head

$6.89 - $6.89
$6.89
$6.89 - $6.89
$6.89
Sold out

Rudder & Trim Tab Anodes w/Allen Screw

$6.89 - $6.89
$6.89
$6.89 - $6.89
$6.89
Sold out
Martyr Rudder/Trim Tab Anode With Stainless Steel Allen Head
Sold out

Martyr Rudder/Trim Tab Anode With Stainless Steel Allen Head

$69.39 - $69.39
$69.39
$69.39 - $69.39
$69.39
Sold out

Rudder & Trim Tab Anodes w/Allen Screw

$69.39 - $69.39
$69.39
$69.39 - $69.39
$69.39
Sold out
Martyr Rudder/Trim Tab Anode With Stainless Steel Allen Head
Sold out

Martyr Rudder/Trim Tab Anode With Stainless Steel Allen Head

$8.59 - $8.59
$8.59
$8.59 - $8.59
$8.59
Sold out

Rudder & Trim Tab Anodes w/Allen Screw

$8.59 - $8.59
$8.59
$8.59 - $8.59
$8.59
Sold out
Martyr Rudder/Trim Tab Anode With Stainless Steel Allen Head
Sold out

Martyr Rudder/Trim Tab Anode With Stainless Steel Allen Head

$114.59 - $114.59
$114.59
$114.59 - $114.59
$114.59
Sold out

Rudder & Trim Tab Anodes w/Allen Screw

$114.59 - $114.59
$114.59
$114.59 - $114.59
$114.59
Sold out
Martyr Rudder/Trim Tab Anode With Stainless Steel Allen Head

Martyr Rudder/Trim Tab Anode With Stainless Steel Allen Head

$41.19 - $41.19
$41.19
$41.19 - $41.19
$41.19
85 in stock

Rudder & Trim Tab Anodes w/Allen Screw

$41.19 - $41.19
$41.19
$41.19 - $41.19
$41.19
Martyr Rudder/Trim Tab Anode With Stainless Steel Allen Head

Martyr Rudder/Trim Tab Anode With Stainless Steel Allen Head

$8.19 - $8.19
$8.19
$8.19 - $8.19
$8.19
Available

Rudder & Trim Tab Anodes w/Allen Screw

$8.19 - $8.19
$8.19
$8.19 - $8.19
$8.19
Seachoice 95611 Rudder & Trim Tab Anode w/Allen Screw, Magnesium, R4MG, Size 5" dia. x 5/8"
Sold out

Seachoice 95611 Rudder & Trim Tab Anode w/Allen Screw, Magnesium, R4MG, Size 5" dia. x 5/8"

$72.09 - $72.09
$72.09
$72.09 - $72.09
$72.09
Sold out

Magnesium for fresh water only. High-quality, cadmium-free anodes Higher protection than zinc 2.5 Times lighter than zinc Corrodes less than zinc I...

View full details
$72.09 - $72.09
$72.09
$72.09 - $72.09
$72.09
Sold out
Martyr Rudder/Trim Tab Anode With Stainless Steel Allen Head

Martyr Rudder/Trim Tab Anode With Stainless Steel Allen Head

$63.39 - $63.39
$63.39
$63.39 - $63.39
$63.39
19 in stock

Rudder & Trim Tab Anodes w/Allen Screw

$63.39 - $63.39
$63.39
$63.39 - $63.39
$63.39
Seachoice 95608 Rudder & Trim Tab Anode w/Allen Screw, Magnesium, Model R4, Size 3-3/4" dia. x 1/2"
Sold out

Seachoice 95608 Rudder & Trim Tab Anode w/Allen Screw, Magnesium, Model R4, Size 3-3/4" dia. x 1/2"

$43.29 - $43.29
$43.29
$43.29 - $43.29
$43.29
Sold out

Magnesium for fresh water only. High-quality, cadmium-free anodes Higher protection than zinc 2.5 Times lighter than zinc Corrodes less than zinc I...

View full details
$43.29 - $43.29
$43.29
$43.29 - $43.29
$43.29
Sold out
Seachoice 95606 Rudder & Trim Tab Anode w/Allen Screw, Magnesium, Model R2, Size 2-13/16" dia. x 1/2"
Sold out

Seachoice 95606 Rudder & Trim Tab Anode w/Allen Screw, Magnesium, Model R2, Size 2-13/16" dia. x 1/2"

$34.99 - $34.99
$34.99
$34.99 - $34.99
$34.99
Sold out

Magnesium for fresh water only. High-quality, cadmium-free anodes Higher protection than zinc 2.5 Times lighter than zinc Corrodes less than zinc I...

View full details
$34.99 - $34.99
$34.99
$34.99 - $34.99
$34.99
Sold out
Seachoice 95607 Rudder & Trim Tab Anode w/Allen Screw, Aluminum, Model R3, Size 3-3/4" dia. x 1/2"
Sold out

Seachoice 95607 Rudder & Trim Tab Anode w/Allen Screw, Aluminum, Model R3, Size 3-3/4" dia. x 1/2"

$28.59 - $28.59
$28.59
$28.59 - $28.59
$28.59
Sold out

Aluminum suitable for salt and brackish water. High-quality, cadmium-free anodes Higher protection than zinc 2.5 Times lighter than zinc Corrodes l...

View full details
$28.59 - $28.59
$28.59
$28.59 - $28.59
$28.59
Sold out

Zinc Rudder Anode 3-3/4" 64157

$27.17 - $27.17
$27.17
$27.17 - $27.17
$27.17
42 in stock

The 64157 is a 3-3/4" zinc rudder anode designed to protect rudders and associated underwater hardware from galvanic corrosion. This two-piece (cla...

View full details
$27.17 - $27.17
$27.17
$27.17 - $27.17
$27.17

Zinc Rudder Anode 5-1/8" CMT-R05

$74.13 - $74.13
$74.13
$74.13 - $74.13
$74.13
4 in stock

The CMT-R05 is a 5-1/8" zinc rudder anode (R-5 style) designed to protect rudders and trim tabs from galvanic corrosion in saltwater environments. ...

View full details
$74.13 - $74.13
$74.13
$74.13 - $74.13
$74.13

Aluminum Rudder Anode 5" CMT-R04AL

$33.43 - $33.43
$33.43
$33.43 - $33.43
$33.43
10 in stock

Marine-grade aluminum rudder anode designed to provide reliable cathodic protection for your vessel's rudder assembly in saltwater environments. Th...

View full details
$33.43 - $33.43
$33.43
$33.43 - $33.43
$33.43

Zinc Rudder Anode 5" CMT-R04

$48.00 - $48.00
$48.00
$48.00 - $48.00
$48.00
13 in stock

The CMT-R04 is a 5" zinc rudder anode (R-4 style) designed to protect rudders and trim tabs from galvanic corrosion in saltwater environments. This...

View full details
$48.00 - $48.00
$48.00
$48.00 - $48.00
$48.00

Aluminum Rudder Anode 3-3/4" CMT-R03AL

$16.52 - $16.52
$16.52
$16.52 - $16.52
$16.52
7 in stock

The CMT-R03AL is a 3-3/4" aluminum rudder anode (R-3 style) designed to protect rudders and trim tabs from galvanic corrosion. This compact clamshe...

View full details
$16.52 - $16.52
$16.52
$16.52 - $16.52
$16.52
Sold out

Zinc Rudder Anode 3-3/4" CMT-R03

$27.86 - $27.86
$27.86
$27.86 - $27.86
$27.86
Sold out

The CMT-R03 is a 3-3/4" zinc rudder anode (R-3 style) designed to protect rudders and trim tabs from galvanic corrosion in saltwater environments. ...

View full details
$27.86 - $27.86
$27.86
$27.86 - $27.86
$27.86
Sold out

Aluminum Rudder Anode 2-13/16" CMT-R02AL

$12.07 - $12.07
$12.07
$12.07 - $12.07
$12.07
12 in stock

The CMT-R02AL is a 2-13/16" aluminum rudder anode designed to protect rudders and submerged metal components from galvanic corrosion. Manufactured ...

View full details
$12.07 - $12.07
$12.07
$12.07 - $12.07
$12.07

Zinc Rudder Anode 2-13/16" - Marine Corrosion Protection

$18.50 - $18.50
$18.50
$18.50 - $18.50
$18.50
35 in stock

Zinc rudder anode 2-13/16" designed for marine corrosion protection. This sacrificial anode protects rudders and underwater metal components from g...

View full details
$18.50 - $18.50
$18.50
$18.50 - $18.50
$18.50

Zinc Rudder Anode 1-7/8" CMT-R01

$9.44 - $9.44
$9.44
$9.44 - $9.44
$9.44
5 in stock

The CMT-R01 is a 1-7/8" round zinc rudder anode designed to protect rudders and trim tabs from galvanic corrosion. This two-piece “pancake” style a...

View full details
$9.44 - $9.44
$9.44
$9.44 - $9.44
$9.44
Save 10% Save %

Aluminum Rudder Anode 4-1/2" CMR04AL 194-CMR04AL

$31.89
$31.89 - $31.89
$31.89
$28.70
$28.70 - $28.70
$28.70
26 in stock

The CMR04AL (194-CMR04AL) is a marine-grade aluminum rudder anode sized at 4-1/2", providing sacrificial cathodic protection for rudder assemblies,...

View full details
$31.89
$31.89 - $31.89
$31.89
$28.70
$28.70 - $28.70
$28.70
Save 10% Save %
Save 12% Save %

Aluminum Rudder Anode 3-3/4" CMR03AL 194-CMR03AL

$15.99
$15.99 - $15.99
$15.99
$14.07
$14.07 - $14.07
$14.07
Available

The CMR03AL (194-CMR03AL) is a marine-grade aluminum rudder anode sized at 3-3/4", providing sacrificial cathodic protection for rudder assemblies,...

View full details
$15.99
$15.99 - $15.99
$15.99
$14.07
$14.07 - $14.07
$14.07
Save 12% Save %