Fitment: Crankshaft Front Oil Seal Wear Sleeve Remover and Installer Tool for Cummins ISM L10 M11 Direct Replacement: A high-quality aftermarket alternative to OEM #4918798. Heavy Duty Diesel Engine Repair Tool Function: Specifically designed to install and remove the crankshaft front oil seal & wear sleeve without damaging the seal and leakage. Superior Material: Made form high standard carbon steel with black finish for great durability and strength, resistance to corrosion, providing a long-term service. Satisfaction Guarantee : .