The top is a "Measu-Funnel" and the bottom is 3/8" tygon tubing connected the the dip-stick hole for the transmission. I can't use the fill-plug since this 02' has the TSB Oil Jet for the second gear installed into the fill hole. Why am I putting a Class I stacked plate cooler on my 02' Honda Odyssey? Because the transmissions run very hot and man feel should have a stock cooler and servicable filter installed. Yep, no serviceable filter on the van.

This is the Class I (1200#) Hayden Stacked Plate cooler installed with rigid hardware vs. the plastic zip ties through the condenser and radiator. The top line is from the transmission (hot) and bottom line is the return to the transmission.