Mishimoto MMHOSE-F2D-01BK Ford 7.3L Powerstroke Silicone Coolant Hose Kit, 2001-2003, Black Direct fit for the 20012003 Ford 7.3L Powerstroke INNER DIAMETER Hose 1: 1.67" Hose 2: 1.95" OUTER DIAMETER Hose 1: 2.07" Hose 2: 2.35" High grade silicone and heat-resistant embedded fibers feature max temp of 330F Mishimoto Lifetime Warranty