I have a 101 tank that has been converted to circulating oil use and i want to change it back to original. I need to buy or make the tube that runs through the oil tank with the threads in either end for the pump and the valve. Does anyone have dimensions or know of someone making these.

I looked in the R&O first, it has a nice assembly drawing and the individual parts have dimension drawings but the tube inside the tank has no information at all, but no worries turns out Walker sells them.