GMC Sierra 3500 HD Electrical, Lighting and Body Parts
This page brings together electrical, lighting and body parts for the GMC Sierra 3500 HD across model years 2007–2026, covering exterior lighting, electrical connectors, switches, and glass and window components. Choose your model year above and this page keeps only the electrical lighting and body parts that fit your GMC Sierra 3500 HD. Each listing is matched to our vehicle fitment data before it appears here.
Shop GMC Sierra 3500 HD Parts by Category
What's here for your GMC Sierra 3500 HD
- Exterior lighting — including LED kits, halogen replacements, projector-style housings, smoked and black-finish options, and front and rear assemblies
- Electrical connectors — OE-replacement and weatherproof connector assemblies
- Switches — interior and exterior switch components for lighting and accessory circuits
- Glass, windows and related components — window glass, gaskets, and related sealing hardware
The widest selection here comes from Dorman, Standard Motor Products, Oracle Lighting, and Hella, spanning everything from direct OE-replacement connectors and switches to specialty LED lighting kits. Other categories GMC Sierra 3500 HD owners shop for: GMC Sierra 3500 HD Springs and Suspension Parts, GMC Sierra 3500 HD Air and Fuel Filters and GMC Sierra 3500 HD Shocks and Struts, or browse all GMC Sierra 3500 HD parts and accessories.