Forum,
I have an ATF leak (due to corrosion) in the metal tubing that connects the hose exiting the bottom of the radiator to the hose that rises to the transmission. The failed metal tubing has a threaded connection securing it to the hose on its intake and is connected to the riser hose via a hose clamp; the metal tubing is fastened to the radiator via bracket welded to the metal tube. It is clear that I need to replace this metal tubing, but the many schematics available on-line are not clear as to the nomenclature of the part (most feature hand-drawn depictions that do not resemble the part installed in my Accord). Can you assist with: the nomenclature of the part, vendors that sell it, and a general idea of the purpose of this metal tube (it seems superfluous: why not simply run a hose from the radiator directly to the transmission?)
Many thanks in advance, JTandMarsh

 

While that fitting is not a separate piece that can be purchased as far as I know, if you can mach the thread of it I'm sure you could find a replacement fitting at Ace or similar hardware stores. You should probably replace the radiator if one of the fittings is that badly corroded though,
is what you would need

 

Thanks much Bavarian. A quick clarification:
1. The radiator is not corroded only this intermediate metal tubing connected via a bracket to the radiator
2. The schematics identify the part as, "Pipe C" it fits between the hose exiting the radiator and the hose rising to the transmission

I worked with the local Honda dealer to try and clarify; they were quite convinced the part was actually Pipe C, so I ordered one. I picked it up this morning...it is not the same shape as the part installed in my Accord. I may find myself adapting some connections and bending some tubing to fit the contours of my vehicle.

I appreciate the steer for a replacement fitting--looks like I'll need it!

 

It may be less trouble to upgrade to an external after market transmission cooler. the kits are fairly inexpensive, not terrible to install and could potentially perform better. something with 3/8" hose should fit fine.

 

Hayden makes a line called Rapid Cool. They advertise it as "33% more efficient than a comparable tube and fin design". It is. I have had three different coolers and the Rapid Cool has worked the best for me.