Looking for in-stock aftermarket parts to modify or upgrade your GMC Sierra 3500 HD with light accessories and wiring? At Tunersports.com we carry a huge selection of the top name brand performance light accessories and wiring parts and accessories for your Sierra 3500 HD.
Whether you have a 2019 or 2024 GMC Sierra 3500 HD in AT4 to SLT trim we have you covered. We have 3 light accessories and wiring available to mod your Sierra 3500 HD. All parts have free shipping to the Continental US 48 States.
 IN STOCK - LOW 529005PUTCO engineered wiring harness dramatically cuts down the installation time when installing Blade(R) LED tailgate light bars! The simple plug-and-play harness has a 4-pin connector that will fit most late-model trucks with a 7-pin connector, meaning you won't have to worry about any cutting or spli... Putco 19-20 Chevy Silv LD / GMC Sierra LD (1500 Models) Blade Quick Connect Tailgate Wiring Harness 2019-2021 GMC Sierra 3500 HD Base 2019-2022 GMC Sierra 3500 HD Denali / SLE / SLT 2022-2022 GMC Sierra 3500 HD Pro $78.99 |