Feature: Ued to easily & quickly install and remove the crankshaft rear seal & wear sleeve ring. Help you do the job effortlessly for your rear main seal diesel engine, saves your time and energy. 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, saving time and reducing risk of crankshaft seal surface damage. .