Fits Mercury / MercruiserPropshaft bearing OE#31-30956 V6 outboard 1978 - 2005 Also Fits Johnson/Evinrude and OMC Sterndrive OE# 0387247 V6 outboard gearcase 1978 - 1989 Sterndrive 4.750" diameter gearcase 1978 - 1989