Cummins C3977617 Turbocharger Oil Drain Tube

Technical specifications for Cummins turbocharger oil drain tube part number C3977617. This component serves as the flexible connection between the turbocharger bearing housing and the engine block or oil pan, facilitating gravity drainage of lubricating oil under high thermal loads. Constructed from high-temperature resistant stainless steel corrugated flexible hose with rigid end fittings. Overall length approximately 27 inches (686 mm). Designed to accommodate thermal expansion and vibration isolation between the turbocharger and engine structure. Direct OEM replacement for Cummins part numbers 3977617 and 3977610. Compatible with B series (4BT, 6BT), C series (6CT), ISB, ISL, ISM, QSB, QSL, and NTA855/KTA19/KTA38/KTA50 engine platforms utilized in Dongfeng, Foton, and Shaanxi heavy-duty trucks and construction equipment.