GM Genuine Parts DEF Injector 12688993 – For Chevy/GMC 2500HD 3500HD 6.6L

Here's a GM Genuine Parts DEF injector, part number 12688993.

It's a direct fit for Chevy and GMC 2500HD and 3500HD trucks with the 6.6L Duramax.

This one is new but comes in a white box—no original packaging, but the part itself is unused.

Crosses to a bunch of numbers like 12670033, DFI13, A2C9934500, and works with brands like ACDelco, Delphi, Denso, and more.

Includes a 1-year replacement warranty.

If your truck's throwing codes or you've got DEF system issues, this might be the fix.

California Prop 65 warning applies (lead), but that's standard.