2000 Honda Accord with a 2.3 four cylinder, I'm going through and resealing the oil pump when I do the timing. Looking at the back of the oil pump where it meets the block, it looks to be two Rubber gaskets, an Oval one which is Part number 15113-PT0-003, and a smaller round one that is not listed on any of the part diagrams that I can find? Does anyone know the part number for this O ring? Also not seeing a Part number for the oil pan gasket either. Can anyone point me in the right direction here?

 

Not sure how much this will help. But I'm about to do a head gasket oil pump and water pump job on my 02 accord. The kit i bought from ebay does have the gaskets n seals. You might try looking at onlinr distributors for the part number.