Genuine OEM GM
- In Original Box -
2011 - 2016 LML / LGH Duramax
The DEF injector is part of the SCR (selective catalytic reduction system) and is responsible for injection of the DEF fluid into the exhaust stream to aid in lowering emissions.
Replaces many part numbers including the following:
12635928, 12640359, DFI2, 904435 , EM1203IJ,
12647372, 0440210302, 0 440 210 302