Engine Cooling System “Pencil” Anodes

Model # 217820 Mfg # CMEZ5
5 out of 5 Customer Rating
Advice & How-To
Orders placed by 3 PM EST typically ship the same day. Orders placed after this time will be processed the next business day.
Engine Cooling System “Pencil” Anodes
Model # 217820 Mfg # CMEZ5
5 out of 5 Customer Rating
Advice & How-To
Orders placed by 3 PM EST typically ship the same day. Orders placed after this time will be processed the next business day.
Select a Product: Anode Only, Length: 5 5/8" (92mm), Diameter: 3/4" (19mm), NPT: 3/4"
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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.

Key Features 

  • Choice of brass plug with anode or replacement anode only
  • “Length” refers to visible portion of anode when installed in plug
  • Threads for anode are “NPT;” threads for plug are “UNC”

Attachment Method Screw-On
Best Use Engine
Compatibility Not for a Specific Engine
Dimensions 3/4" Outside Diameter x 3 5/8" Length (19mm x 92mm)
Material Zinc
Shape Pencil
Type Replacement Anode Only

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