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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.

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: 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
 
4.7

(based on 6 reviews)

Ratings Distribution

  • 5 Stars

     

    (4)

  • 4 Stars

     

    (2)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (0)

100%

of respondents would recommend this to a friend.

Pros

  • Easy to use (4)
  • Protects well (4)

Cons

No Cons

Best Uses

  • Engine (5)
    • Reviewer Profile:
    • Advanced (4)
    • Was this a gift?:
    • No (6)

Reviewed by 6 customers

Displaying reviews 1-6

Back to top

 
5.0

It's a Zinc

By Steve

from Baltimore Harbor MD

About Me Casual/ Recreational

Verified Buyer

Pros

  • Easy to Use
  • Protects Well
  • selfless

Cons

    Best Uses

    • Engine

    Comments about Engine Cooling System “Pencilx9D Anodes:

    It's a zinc and it works. What else could you ask for?

    • Was this a gift?:
    • No
     
    5.0

    Would buy again

    By Robby

    from Tampa Bay

    About Me Advanced

    Verified Buyer

    Pros

    • Easy to Use
    • Protects Well

    Cons

      Best Uses

      • Engine

      Comments about Engine Cooling System “Pencilx9D Anodes:

      Inexpensive way to protect your cooling system, change your anodes at least once a year.

      • Was this a gift?:
      • No
       
      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

      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 1-6

          Back to top

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