Part identifiecation for 1998 Mazda MPV

Water leaking from what appears to be the transmission. That would mean replace the radiator. There is also a two piece cylinder shapped object attached to the transmission on the passenger side about 6 inches long and 3 inches in diameter. Looks like the water is coming from where the two pieces come together. Does anyone know what this part is?

Solutions? Replace the radiator, replace this unknown part, flush the transmission and refill. Am I missing anything else?

Help

water - is it the a/c condensate? There is no “water” in your car, so a water leak isn’t a problem. If you’re leaking coolant, oil or trans fluid, that’s another story. The cylindrical bject you describe sounds to me like a vibration damper. Does it have any apparent function?