LISTING INCLUDES: 1 xCrankshaft Rear Main Seal Tool FIT FOR: For Cummins Signature ISX QSX ISX12 ISX15 diesel truck engines. ABOUT PRODUCT: It replaces 3162994 3164780 4965569. Specifically designed to install and remove the crankshaft rear seal & wear sleeve, Instructions： Step 1. Install the adaptor with 3 bolts; Step 2. Set the nuts; Step 3. Drill pilot holes; Step 4. Run screws in; Step 5. Slowly pull seal out; Step 6. Take adaptor out & finish. .