Many marine engines are fitted with internal zinc anodes to protect the metals of heat exchangers, coolers and casings from electrolytic corrosion. Please see below the measurements of the Anode Pencil. If you require the brass plug please see SKU N25

 

Part Number Length Exposed Length Diameter Thread
21117 52mm 44mm 10mm 5/16" UNC
21119 62mm 52mm 13mm 3/8" UNC
21121 63mm 50mm 16mm 7/16" BSP
21123 67mm 51mm 19mm 1/2" BSP

 

Part Number Alternative Part Number
21117 (1/4") Universal
21119 (3/8") Universal
21121 (1/2") Universal, Detroit 8517479, GM 8517480, Yanmar 119574-18790 
21123 (3/4") Universal, Detroit 8515842, GM 8515842

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SKU N27
Barcode # 21117
Brand Martyr
Shipping Weight 0.1000kg
Unit Of Measure ea

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