[Mikendebbie]

GM changed to Denso in 2017 model on the L5P duramax.

Found this quote from Drivingline.com “For the first time in this engine’s production run, the injection pump is supported by a lift pump (an electric, in-tank unit), the common-rail system is supplied by Denso (not Bosch) and boost is provided courtesy of a BorgWarner turbocharger (rather than a Garrett).”