GMC Sierra Valve Train Parts

What's here for your GMC Sierra

• Engine camshafts — available in single and dual configurations, including OE-replacement and performance profiles
• Engine rocker arms — offered in standard and heavy-duty builds, including stainless steel options
• Engine rocker arm shaft plug sets — sealing components that complete a rocker arm service
• Engine timing sets — kits covering timing chains, gears, and gaskets for a full timing service

The widest selection here comes from COMP Cams, Standard Motor Products, Cloyes, and Melling, spanning OE-style replacements through performance-oriented parts across the 2002–2023 model range. Other categories GMC Sierra owners shop for: GMC Sierra Exterior Lights, GMC Sierra Springs and Suspension Parts and GMC Sierra Bumpers, or browse all GMC Sierra parts and accessories.