REAR MAIN OIL SEAL, RITTER BLOCK

The rear main seal should have came with the block, I had to contact Kent about getting another one. Its a two piece rear main seal with a o ring on the outside. If you still have the wrapping from when the engine was shipped double check it, if not call Kent @1-585-610-9979, hopefully that's still his number, its been a while lol. Sorry I can't remember the name of the company that he gets them from. If you call him can you please let me know the name of that company so in case down the road I need time order a new one?