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Shaft Anodes made of Mil-Spec Magnesium Alloy.

  • Highly active corrosion protection.
  • Superb self-cleaning performance.
  • Will not passivate in freshwater.

Highly recommended for inboard vessels that operate in freshwater.

All anodes have interlocking halves and extra alloy around the fastener.  Models X-1M thru X-9M have two stainless steel allen screws.  Stainless steel nuts are pressed in, and plastic retaining washers ensure that the screws do not fall out during installation.


Pitted stainless steel shaft from lack of galvanic protection.
Don't let this happen to your propeller shaft.
(Click to enlarge)

Mil-Spec A-21412 (SH) Magnesium Alloy

Martyr X-1M Shaft Magnesium Anode - 3/4" Martyr X-2M Shaft Magnesium Anode - 7/8"
Martyr X-1 Shaft Magnesium Anode - 3/4" (X1M) List Price: $24.79
Our Price: $14.26
PRODUCT SPECS

Martyr X-1 Shaft Magnesium Anode - 3/4" (X1M)
Martyr X-2 Shaft Magnesium Anode - 7/8" (X2M) List Price: $24.79
Our Price: $14.36
PRODUCT SPECS

Martyr X-2 Shaft Magnesium Anode - 7/8" (X2M)
Martyr X-3M Shaft Magnesium Anode - 1" Martyr X-4M Shaft Magnesium Anode - 1-1/8"
Martyr X-3 Shaft Magnesium Anode - 1" (X3M) List Price: $25.99
Our Price: $17.62
PRODUCT SPECS

Martyr X-3 Shaft Magnesium Anode - 1" (X3M)
Martyr X-4 Shaft Magnesium Anode - 1" Heavy (X4M) List Price: $25.49
Our Price: $18.30
PRODUCT SPECS

Martyr X-4 Shaft Magnesium Anode - 1" Heavy (X4M)
T-Handle Hex Wrenches for X/R/C Anodes - 3 Piece Set; Color Coded
(Out of stock until late June)
Martyr X-5M Shaft Magnesium Anode - 1-1/4"
T-Handle Hex Wrenches for X/R/C Anodes - 3 Piece Set List Price: $9.99
Our Price: $4.93
PRODUCT SPECS

T-Handle Hex Wrenches for X/R/C Anodes - 3 Piece Set, Color Coded
Martyr X-5 Shaft Magnesium Anode - 1-1/8" (X5M) List Price: $26.99
Our Price: $18.40
PRODUCT SPECS

Martyr X-5 Shaft Magnesium Anode - 1-1/8" (X5M)
Stainless Steel Wire Brush FREE!!!   Shaft Polishing Strip - 1"x12"
(For orders over $100.00)
Stainless Steel Wire Brush List Price: $4.99
Our Price: $1.29
PRODUCT SPECS

Stainless Steel Wire Brush
FREE!!! Shaft Polishing Strip - 1"x12" List Price: $1.99
Our Price: $0.00
PRODUCT SPECS

Shaft Polishing Strip - 1"x12"
Martyr X-6M Shaft Magnesium Anode - 1-3/8" Shaft Diameter Measuring Tape
Martyr X-6 Shaft Magnesium Anode - 1-3/8" (X6M) List Price: $41.99
Our Price: $27.18
PRODUCT SPECS

Martyr X-6 Shaft Magnesium Anode - 1-3/8" (X6M)
FREE!!! Shaft Diameter Measuring Tape List Price: $3.49
Our Price: $1.80
PRODUCT SPECS

Shaft Diameter Measuring Tape
Martyr X-7M Shaft Magnesium Anode - 1-1/2"
(Out of stock until early June)
Martyr X-8M Shaft Magnesium Anode - 1-3/4"
Martyr X-7 Shaft Magnesium Anode - 1-1/2" (X7M) List Price: $41.99
Our Price: $24.92
PRODUCT SPECS

Martyr X-7 Shaft Magnesium Anode - 1-1/2" (X7M)
Martyr X-8 Shaft Magnesium Anode - 1-3/4" (X8M) List Price: $65.99
Our Price: $38.62
PRODUCT SPECS

Martyr X-8 Shaft Magnesium Anode - 1-3/4" (X8M)
Martyr X-9M Shaft Magnesium Anode - 2" Martyr X-25M Shaft Magnesium Anode - 25mm
Martyr X-9 Shaft Magnesium Anode - 2" (X9M) List Price: $68.99
Our Price: $42.74
PRODUCT SPECS

Martyr X-9 Shaft Magnesium Anode - 2" (X9M)
Martyr X-25 Shaft Magnesium Anode - 25MM (X25M) List Price: $24.79
Our Price: $14.94
PRODUCT SPECS

Martyr X-25 Shaft Magnesium Anode - 25MM (X25M)

Product Number Variations: X-1M, X1M, X-01M, X01M, CMX01M, X-2M, X2M, X-02M, X02M, CMX02M, X-3M, X3M, X-03M, X03M, CMX03M, X-4M, X4M, X-04M, X04M, CMX04M, X-5M, X5M, X-05M, X05M, CMX05M, X-6M, X6M, X-06M, X06M, CMX06M, X-7M, X7M, X-07M, X07M, CMX07M, X-8M, X8M, X-08M, X08M, CMX08M, X-9M, X9M, X-09M, X09M, CMX09M, X-25M, X25M, X-025M, X025M, CMX025M