XDP 7.3L Intercooler Hose and Clamp Kit XD456 For 1999.5-2003 Ford 7.3L PowerstrokeReplace the old intercooler hoses on your 1999. 5 2003 Ford 7. 3L Powerstroke with the XDP 7. 3L Intercooler Hose and Clamp Kit XD456. A leaking or torn intercooler hose can drastically hurt engine performance, engine efficiency, and in some cases leave you stranded on the side of the road. Replacing your factory intercooler hoses during preventative maintenance can save you a headache down the road. Each Intercooler Hose and Clamp Kit is constructed