Bosch 047-100 Fuel Injector Return Line T-Fitting (Leak Back "T" Fitting)

This is a brand new OEM fuel injector return T" fitting. Often referred to as the leak-back T fitting, these fittings will fit all 2004.5-2010 Duramax Diesel Engines (LLY, LBZ, & LMM). These T fittings can be found on both the driver and passenger side fuel injector return lines and often become brittle and break upon removal. Inspect your return line and return line fittings when doing any injector service.