Mishimoto MMBK-F2D-99BK Ford 7.3L Powerstroke Factory-Fit Boot Kit, 1999-2003, Black Direct fit for the 19992003 Ford 7.3L Powerstroke Five layers of 100% silicone for maximum durability and blowout prevention DuraCore technology provides resistance to heat, pressure, fuel, and oil Includes high-quality constant-tension T-bolt clamps Mishimoto Lifetime Warranty