Mercury Impeller 40, 45, 50, 55 & 60 Hp
40 Hp 4 Stroke 4 Cyl.1.83:1 ratio Serial No. OT228405 & Up
40 Hp EFI 4 Stroke 1.83:1 ratio Serial No. OT409000 & Up
45 Hp Jet 3 Cyl. Serial No. D000750 & Up
50 Hp 3 Cyl. Serial No. OD000750-OG589999
50 Hp 4 Stroke 4 Cyl. 1.83:1 ratio Serial No. OT178500 & Up
50 Hp EFI 4 Stroke 1.83:1 ratio Serial No. OT409000 & Up
55 Hp 3 Cyl. & 60 Hp 3 Cyl. Serial No. OD000750 & Up
60 Hp 4 Stroke Std. Serial No. OT178500 & Up
