Cummins 3977614 Turbocharger Oil Drain Pipe

This turbocharger oil drain pipe facilitates the return of lubricating oil from the turbocharger bearing housing to the engine crankcase. Designed for Cummins B series diesel engines including 4BT3.9, 6BT5.9, 6CT8.3, ISB, QSC, and QSL variants. The component withstands high thermal cycles and oil pressure differentials inherent in turbocharged diesel applications. Constructed from formed steel tubing with welded or flared end connections for secure sealing. Direct replacement for Cummins OEM part number 3977614. Interchanges with aftermarket reference 3934084. Net weight approximately 0.50 kg. Verify engine serial number and turbocharger model for exact fitment prior to installation.