Product Overview
3899508 ISM QSM M11 Turbo Oil Return Pipe. Product type: Turbo Oil Return Pipe. Part number(s): 3899508. Engine/model: ISM, QSM, M11, ISM11, QSM11. Application notes: turbo oil return pipe for Cummins ISM, QSM, M11, ISM11, QSM11 engine applications. Please verify final fitment by part number, engine serial number, and application before publishing or ordering.








