aremnry 4918991 Front Crankshaft Seal & Wear Sleeve Remover & Installer For Cummins ISX12 and ISX15 Direct Replacement: Replace part numbers 4918991 Compatible with: Fit for Cummins ISX12 and ISX15 with single overhead cam Great Function: Used to remove and install front crankshaft seal and wear sleeve without damaging the seal. If you're not 100% satisfied with aremnry Crankshaft Front Seal Tool, simply return it for a full refund in 30 days. Premium Support & 12-Month Warranty.