Mishimoto MMHOSE-F250D-03BL Ford 6.0L Powerstroke Silicone Coolant Hose Kit, 2003-2004, Blue Direct fit for the 20032004 Ford 6.0L Powerstroke INNER DIAMETER Hose 1: 1.95" Hose 2: 1.67" OUTER DIAMETER Hose 1: 2.35" Hose 2: 2.07" High grade silicone and heat-resistant embedded fibers feature max temp of 330F Mishimoto Lifetime Warranty Interior material: Heat-resistant embedded fibers Exterior material: Silicone Maximum temperature: 330 degree fahrenheit Fits 03-05 Ford Excursion, 03-07 Ford F-250 Super Duty, F-350 Super Duty, F-450 Super Duty and F-550 Super Duty