OMC Cobra Gearcase Outdrive lower unit V6 V8 305 350 4.3L 5.0L 5.7L Sterndrive Intermediate Housing I'm quite positive that this

I'm quite positive that this is what there is as it only looks like they produced 5 different gear pinions of this "look" that basically varied in lengths and some had an extra hole on the bottom for some sort of pin

make sure they match yours

This particular item was not marked

just check the diameter or stamped number on your pulley

Same as Sierra 18-2180

OMC Cobra Gearcase Outdrive lower unit V6 V8 305 350 4.3L 5.0L 5.7L Sterndrive Intermediate Housing I'm quite positive that thisItem Details For use with OMC Cobra V6 & V8 800 outdrives 1986 1993. (1986 had a different casting, but you could still use this with those years) Compatible with all V6 & V8 applications (4. 3L V6, 5. 0L 305 V8, 5. 7L 350 V8, 5. 8L, etc) No leaks or bad seals found after pressure testing. Original Paint This will be drained of gear oil before shipping and will need to be refilled before use. Freshwater used part. UPS Shipping so you get it in a