Originally Posted By Pacnorthcuda
Not sure if this answers your question, but oil ENTERS the filter through the holes circling the large center hole and oil EXITS the large center hole on its way to the engine.


Thanks, but no, it doesn't answer my question. The filter adapter is marked. It's the pump cover that isn't. I think it's funny, over 50 views and it seems like nobody else knows either. Easy enough to figure out, though. Just might get a little messy.