Cylinder Head Anode 20HP- 30HP 20C 25D 2-Stroke for Yamaha Outboard 689-11325-00
Cylinder Head Anode
Reference to:
Mercury 84732M,
Yamaha 689-11325-00
Yamaha C-MLH Manual Tilt / Manual Start 20 In. 25 1993
Yamaha C-MLH Manual Tilt / Manual Start 20 In. 25 1994
Yamaha C-MLH Manual Tilt / Manual Start 20 In. 25 1995
Yamaha C-MLH Manual Tilt / Manual Start 20 In. 25 1996
Yamaha C-MLH Manual Tilt / Manual Start 20 In. 25 1997
Yamaha C-MSH Manual Tilt / Manual Start 15 In. 25 1992
Yamaha C-MSH Manual Tilt / Manual Start 15 In. 25 1993
Yamaha C-MSH Manual Tilt / Manual Start 15 In. 25 1994
Yamaha C-MSH Manual Tilt / Manual Start 15 In. 25 1995
Yamaha C-MSH Manual Tilt / Manual Start 15 In. 25 1996
Yamaha C-MSH Manual Tilt / Manual Start 15 In. 25 1997
Yamaha EL Manual Tilt / Electric Start 20 In. 25 1984
Yamaha EL Manual Tilt / Electric Start 20 In. 25 1985
Yamaha EL Manual Tilt / Electric Start 20 In. 25 1986
Yamaha EL Manual Tilt / Electric Start 20 In. 25 1987
Yamaha L 25 1984
Yamaha L 25 1985
Yamaha L 25 1986
Yamaha L 25 1987
Yamaha S 25 1984
Yamaha S 25 1985
Yamaha S 25 1986
Yamaha S 25 1987
Yamaha C-MLH Manual Tilt / Manual Start 20 In. 30 1994
Yamaha EL Manual Tilt / Electric Start 20 In. 30 1984
Yamaha EL Manual Tilt / Electric Start 20 In. 30 1985
Yamaha EL Manual Tilt / Electric Start 20 In. 30 1986
The anode is made from a metal alloy with a more ""active"" voltage (more negative electrochemical potential) than the metal of the structure it is protecting (the cathode). The difference in potential between the two metals means the sacrificial anode material corrodes in preference to the structure.
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