O-Ring (5 per pack) replaces MerCruiser part # 25-26722, Johnson/Evinrude part # 302588
I.D: 1-3/4, O.D: 2, W: 1/8
For Small Gearcase 40-60 HP 2-Cyl. Loopcharged (1975-1988) 60-75 HP 3-Cyl. Loopcharged (1975-1988)