For 40, 48 and 50 HP, 1989 – 2005 Bearing carrier zinc anode located behind propeller.
Mounting Holes: 2.8″ center-to-center
EMP Aluminum anodes conform to Mil-Spec A-24779(SH)

also crosses with:
Canada Metals CM398873A
Performance Metals 00144A
GLM 12742
Technoseal 00915
Reliance AMD-398873