Features: 1. Fitment: Fit for Cummins ISX12 and ISX15 with single overhead cam. 2. Material: Advanced CNC machined heavy duty steel with black anodized finish, durability, strong and anti-corrosion. High precision and hardness to provide a much longer service life. 3. Upgrade Design: Use to remove and install front crankshaft seal and wear sleeve without damaging the seal and leakage. Make sure of the correct installation depth of the crankshaft seal. 4. Easier Work: Directly replace part numbers 4918991. Each part is manufactured to OEM specifications and testing. Easier to use due to a simpler design to save your time and money. .