GMC Sierra 3500 HD Mufflers
This page brings together mufflers for the GMC Sierra 3500 HD spanning model years 2007 through 2026, including individual exhaust mufflers and complete muffler assemblies in materials ranging from aluminized steel to stainless steel and in styles from direct-fit OE replacements to chambered designs. Choose your model year above and this page keeps only the mufflers that fit your GMC Sierra 3500 HD. Each listing is matched to our vehicle fitment data before it appears here.
What's here for your GMC Sierra 3500 HD
- Exhaust Mufflers — individual replacement units in aluminized steel, stainless steel, and chambered configurations
- Exhaust Muffler Assemblies — complete assemblies designed for direct-fit installation
- OE-replacement styles built to match factory specifications
The widest selection here comes from AP Exhaust, Flowmaster, MBRP, and Corsa, covering a broad range of fitments and construction materials for 2007–2026 GMC Sierra 3500 HD applications. 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.