The Cummins 0040834 Front Seal Service Kit is an authentic OEM component designed for comprehensive front crankshaft seal replacement on various Cummins B Series, ISB, and QSB engines. This kit typically includes the necessary front crankshaft seal and associated components for a complete and reliable repair, preventing oil leaks and maintaining engine integrity. Engineered to Cummins' stringent specifications, it ensures precise fitment and long-lasting performance for models such as B3.9, B5.9, ISB4.5, ISB6.7, QSB4.5, and QSB6.7.