Find a great selection of Lighting Accessories that help you complete the installation of ancillary lights on your 2020 Chevy/GMC 3.0L Duramax. You'll find the Lighting Accessories you demand, whether you need wiring harnesses, relays, switches, or noise canceling wind diffuser blades. We have the Lighting Accessories you need, with brands like Anzo, ZROADZ, Recon, Oracle, Rigid Industries, and more. Lighting Accessories are available to help you complete the installation of auxiliary lighting on your vehicle.