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MARTYR Engine Cooling System “Pencil” Anodes

Protect your engine against galvanic corrosion by changing its anode regulary.

Anodes may be purchased as a complete assembly (anode with brass plug) or as a replacement anode only. Threads for replacement anodes (which screw into the plug) are “NPT.” Outside threads for plugs (which screw into the engine block) are “UNC”. “Length” refers to visible portion of anode when installed in plug. Offered in zinc alloy only.

Customer Reviews
Product Models
Description WM Model # MFG Part # Availability Price Quantity  
Anode with Plug, Length: 1 1/8", Diameter: 3/4", NPT: 3/8", UNC: 8mm (Fits Yanmar) 593501 CM272100200300Z
In stock online.

$4.99

Anode with Plug, Length: 1 3/4" (45mm), Diameter: 3/8" (10mm), NPT: 1/4", UNC: 5/16" 332155 CME0
In stock online.

$6.99

Anode with Plug, Length: 2" (51mm), Diameter: 1/4" (6mm), NPT: 1/8", UNC: 1/4" 519017 CME00
In stock online.

$6.99

Anode with Plug, Length: 2" (45mm), Diameter: 1/2" (13mm), NPT: 3/8", UNC: 3/8" 194274 CME1
In stock online.

$10.49

Anode with Plug, Length: 1 3/4" (45mm), Diameter: 1/2" (13mm), NPT: 3/8", UNC: 3/8" 6670848 CME1D
Delivery within 2 - 3 weeks.

$15.99

Anode with Plug, Length: 1 1/2" (38mm), Diameter: 1/2" (13mm), NPT: 3/8", UNC: 3/8" 6670855 CME1E
Delivery within 2 - 3 weeks.

$4.89

Anode with Plug, Length: 1 1/4" (32mm), Diameter: 1/2" (13mm), NPT: 3/8", UNC: 3/8" 6670863 CME1F
Delivery within 2 - 3 weeks.

$5.79

Anode with Plug, Length: 1" (25mm), Diameter: 1/2" (13mm), NPT: 3/8", UNC: 3/8" 6670871 CME1G
Delivery within 2 - 3 weeks.

$12.49

Anode with Plug, Length: 2" (51mm), Diameter: 3/8" (10mm), NPT: 3/8", UNC: 7/16" 593485 CME1H
In stock online.

$10.99

Anode with Plug, Length: 2" (51mm), Diameter: 5/8" (16mm), NPT: 1/2", UNC: 7/16" 194282 CME2
In stock online.

$10.99

Anode with Plug, Length: 2" (51mm), Diameter: 3/4" (19mm), NPT: 3/4", UNC: 1/2" 485318 CME3
In stock online.

$12.99

Anode with Plug, Length: 3 3/8" (86mm), Diameter: 3/4" (19mm), NPT: 3/4", UNC: 1/2" 485334 CME4
In stock online.

$14.49

Anode with Plug, Length: 5 5/8" (92mm), Diameter: 3/4" (19mm), NPT: 3/4", UNC: 1/2" 217838 CME5
In stock online.

$14.49

Anode Only, Length: 1 3/4" (45mm), Diameter: 3/8" (10mm), NPT: 1/4" 307314 CMEZ0
In stock online.

$2.99

Anode Only, Length: 2" (51mm), Diameter: 1/4" (6mm), NPT: 1/8" 524611 CMEZ00
In stock online.

$2.99

Anode Only, Length: 2" (45mm), Diameter: 1/2" (13mm), NPT: 3/8" 194290 CMEZ1
In stock online.

$3.99

Anode Only, Length: 1 3/4" (45mm), Diameter: 1/2" (13mm), NPT: 3/8" 6670889 CMEZ1D
Delivery within 2 - 3 weeks.

$1.89

Anode Only, Length: 1 1/2" (38mm), Diameter: 1/2" (13mm), NPT: 3/8" 6670897 CMEZ1E
Delivery within 2 - 3 weeks.

$1.89

Anode Only, Length: 1 1/4" (32mm), Diameter: 1/2" (13mm), NPT: 3/8" 6670905 CMEZ1F
Delivery within 2 - 3 weeks.

$1.79

Anode Only, Length: 1" (25mm), Diameter: 1/2" (13mm), NPT: 3/8" 6670913 CMEZ1G
Delivery within 2 - 3 weeks.

$5.99

Anode Only, Length: 2" (51mm), Diameter: 3/8" (10mm), NPT: 3/8" 4725826 CMEZ1H
Limited availability.

Orig. $3.99

Now  $0.66

Anode Only, Length: 2" (51mm), Diameter: 5/8" (16mm), NPT: 1/2" 194308 CMEZ2
In stock online.

$3.99

Anode Only, Length: 2" (51mm), Diameter: 3/4" (19mm), NPT: 3/4" 485326 CMEZ3
In stock online.

$3.99

Anode Only, Length: 3 3/8" (86mm), Diameter: 3/4" (19mm), NPT: 3/4" 485342 CMEZ4
In stock online.

$3.99

Anode Only, Length: 5 5/8" (92mm), Diameter: 3/4" (19mm), NPT: 3/4" 217820 CMEZ5
In stock online.

$4.59

Product Description

Protect your engine against galvanic corrosion by changing its anode regulary.

Anodes may be purchased as a complete assembly (anode with brass plug) or as a replacement anode only. Threads for replacement anodes (which screw into the plug) are “NPT.” Outside threads for plugs (which screw into the engine block) are “UNC”. “Length” refers to visible portion of anode when installed in plug. Offered in zinc alloy only.

Specs

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REVIEW SNAPSHOT®

by PowerReviews
MartyrEngine Cooling System “Pencilx9D Anodes
 
4.5

(based on 4 reviews)

Ratings Distribution

  • 5 Stars

     

    (2)

  • 4 Stars

     

    (2)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (0)

100%

of respondents would recommend this to a friend.

Pros

No Pros

Cons

No Cons

Best Uses

  • Engine (3)
    • Reviewer Profile:
    • Advanced (3)
    • Was this a gift?:
    • No (4)

Reviewed by 4 customers

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Displaying reviews 1-4

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5.0

Fits my OMC heat exchanger.

By Protobug

from Oregon

About Me Advanced

Verified Buyer

Pros

  • Easy to Use
  • Visually Pleasing

Cons

  • None

Best Uses

  • Engine
  • Fit my '77 OMC

Comments about Engine Cooling System “Pencilx9D Anodes:

Pipe thread 3/8, replaced a used up anode in the heat exchanger in my boat.

  • Was this a gift?:
  • No
 
4.0

Great customer service from Terry

By Gene "Captain of Leisure"

from Bremerton WA

About Me Advanced

Verified Buyer

Pros

    Cons

      Best Uses

        Comments about Engine Cooling System “Pencilx9D Anodes:

        Had a hard time finding the right size pencil zink for my engine. Terry to the time to look for it and discovered that the one I needed had been put in the wrong bin. This actually saved me a couple of bucks.

        • Was this a gift?:
        • No
         
        4.0

        Readily available in stock

        By Sailor Pal Al

        from Seattle, WA

        About Me Casual/ Recreational

        Verified Reviewer

        Pros

        • Protects Well

        Cons

          Best Uses

          • Engine

          Comments about Engine Cooling System “Pencilx9D Anodes:

          Nice to find this item readily available at my local West Marine Store.

          • Was this a gift?:
          • No
           
          5.0

          does what it is suppose to

          By Bob

          from Jupiter FL

          About Me Advanced

          Verified Buyer

          Pros

          • Easy to Use
          • Protects Well

          Cons

            Best Uses

            • Engine

            Comments about Engine Cooling System “Pencilx9D Anodes:

            Marine diesel engine

            • Was this a gift?:
            • No

            Displaying reviews 1-4

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