G&R Diesel Turbocharger Oil Return Line - GRD661007

Our Duramax oil drain line will work on any S300/ S400 kit for 2001-2016 Duramax. We use high quality braided stainless lines with billet aluminum adapters for both engine and turbo end of the lines. The turbo oil drain flange at the turbo, has a high quality o-ring seal instead of the cheap factory paper gasket. This not only helps ease of install but provides a better seal. This will not work on a stock setup, refer to part number GRD661026 for stock drain line.