Aluminum anode for above the cavitation plate on the lower unit of Johnson and Evinrude V4 and V6 engines from 1982 to 2004, and for the OMC sterndrive stringer mount (1982-1985) and Cobra (1986 - 1993). 

Note: this anode will not fit if the retaining screw threads into the anode and does not go all the way through the anode as they do on ETECs. The center hole is too large for that application.