An OMC part may be identical because when they went into the Joint Venture with Volvo in '94, VP took the OMC Cobra transom mount and slightly modified it (the pivot housing part #76 in the diagram above in particular is different) but many parts, if not the majority are the same. I have bought a number of NLA OMC parts on Ebay and most have been just fine. A lot of them also had the same part numbers. Those hinge pins on mine are still good believe it or not. 38 years old. I really can't complain, all I have done to it, is a few seals (water pump seal 2x) the trim rams (not a hard job at all if you can get the end caps off) and the steering actuator (a big pain in the azz but only because the cotter pins they use to hold the mounting bolts in were hell to get out). Changed the bellows 2x, water pump every 3 years, that's it. 20+ years in the salt. It just takes regular maintenance pulling the drive each fall.
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