Features： Directly Replacement: This is a high-quality aftermarket alternative to 3164780 and it also replaces 3162994. Replaces multiple seals including 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 holes; Step 4. Run screws in; Step 5. Slowly pull seal out; Step 6. Take adaptor out & finish. Fitment： For Cummins Signature ISX QSX ISX12 ISX15 diesel truck engines. Package Includes： 1 set Crankshaft Rear Main Seal Tool .