305098 quad ring, fits into 302538 lower seal on some 18hp, 30,35and 40hp see parts book

ABOS Outboard Service manual motors up to 30hp 5th edition

$ 29.90

Vintage outboard's Chilton's 30HP and up outboards very good used, 1966-72, Chrysler, Mercury, OMC

$ 18.95

Tempo OMC Vintage outboard flush attachment

$ 31.00

Flywheel OMC 1968 Johnson 40HP 580412 excellent flywheel from 68 40hp electric shift

$ 95.00