313754 OMC O-RING

OEM Johnson/Evinrude/OMC o-ring (part 313754) is a driveshaft bearing seal with dimensions 46.6 x 2.5 millimeters. Used on outboard lower unit assemblies as a driveshaft bearing o-ring and lower unit pressure seal. Genuine OEM equipment from classic Johnson/Evinrude outboards. Standard elastomer ring seal prevents water ingress into gear housing. Part is commonly needed during lower unit rebuild or maintenance. Available from marine parts retailers and online suppliers specializing in Johnson/Evinrude inventory.