Outlet. duct. Charge Air Cooler Pipe. InterCooler Pipe. Tube -.
A Pipe that transfers compressed Air to from the turbo or super Charger to the InterCooler.

Turbocharger Intercooler Pipe

Fits F-250 Super Duty, F-350 Super Duty, F-450 Super Duty

6.7 LITER, AIR CHARGE COOLER.
Turbocharger Intercooler Tube - Repair or Replace
If your Ford Aerostar is equipped with a turbo and you've noticed a reduction in acceleration or a hissing on acceleration accompanying your check engine light, your intercooler or its piping/tubes may need to be repaired or replaced.