seal and gasket numbers
Hey bud, I bought thes items yesterday at cummins.
gasket 3918673 $18. 65
oil seal 3804899 $25. 63
Hope it helps, by the way, the distance of 1 inch from the end of the tab to the center of the hole is critical. I used some 3\4 wide by 1 3\8" stainless by . 030 that I found at the hardware store. From the center of the hole to the long end taper both sides to a point with a 9\16 width on the long end. By center of hole i mean a reference point to start the taper on the outside edge. It fit pertect. Hope it helps. Tim