Update the Bulb Sockets & Wiring on your 2001-2004 Chevy/GMC 6.6L LB7 Duramax for more reliable lighting. Find the brand you trust like Oracle, Aspire Auto Accessories, Dorman, Recon, and Anzo. Replace the melted or brittle headlight pigtail, side marker socket, or add resisters to the aftermarket lighting on your ride. Shop now at XDP and get a wide variety of Bulb Sockets & Wiring components you need for aftermarket and stock lighting.