Connection. Inlet. Air.. Charge Cooler Pipe. Intake hose. InterCooler Pipe.
A Pipe that transfers compressed Air to from the turbo or super Charger to the InterCooler.

Turbocharger Intercooler Pipe

Fits Excursion, F-250 Super Duty, F-350 Super Duty, F-450 Super Duty, F-550 Super Duty

7.3 LITER TURBO DIESEL.
Turbocharger Intercooler Tube - Repair or Replace
If your 2003 Ford F-250 Super Duty 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.