The Oni Tools Ford 6.7L Front and Rear Crankshaft Seal Remover and Installer Master Tool Kit, No. ONI450C, is designed to remove and install crankshaft oil seals for 2011 to 2021 Ford Super Duty F250, F350, F450, F550, 6.7L power stroke diesel and 2016 to 2022 Ford Super Duty F650 and F750 6.7L power stroke diesel engines. Manufactured with high-quality carbon steel for high strength, anti wear, rust resistance, anti-oxidation, and durability.