About This FITMENT – Work on Cummins Signature, ISX & QSX,ISX12 and ISX15 engine. It will fit the newest Cummins seal perfectly. BENEFITS -- Specifically design to install and remove the crankshaft rear seal & wear sleeve, saving time and reducing risk of crankshaft seal surface damage during removal. DIRECT REPLACEMENT -- This is a high-quality aftermarket alternative to OEM #3164780 (seal/sleeve kit PN 4965569). SUPERIOR MATERIAL -- Made from high standard carbon steel which can withstand corrosion, rust and impact, its heavy duty construction ensures an unparalleled long lifespan. Complete Kit: Includes all essential tools such as the wear sleeve and installation tools, providing comprehensive support for more efficient and easier installation and removal. User-Friendly Design: Precisely designed tools automatically install seals and wear rings to the correct depth, simplifying operations and greatly improving efficiency. Time & Labor-Saving: Designed to simplify removal and installation processes, reducing manual operation time and fatigue while boosting maintenance efficiency. Integrated Design: Combines installation and removal functions in one toolset, meeting multiple needs without requiring additional purchases, ensuring convenience.