GMC Sonoma Engine Gaskets and Seals
Engine gaskets and seals for the GMC Sonoma span the 1991–2004 model years, covering everything from cylinder head gaskets to valve cover and intake manifold sets. Whether you're working on a routine refresh or a deeper engine job, this page brings together OE-replacement and performance-oriented sealing components sized for the Sonoma. Select your year above and we'll show only the engine gaskets and seals that fit your GMC Sonoma. Fitment is checked against our vehicle data for every part listed.
Cometic C5106 Rear Main Seal Kit for Chevy Small Block V8 and 90° V6
What's here for your GMC Sonoma
- Engine Cylinder Head Gaskets — individual head gaskets for the GMC Sonoma
- Engine Cylinder Head Gasket Sets — full head gasket kits including supporting seals
- Engine Intake Manifold Gasket Sets — multi-piece sets covering upper and lower intake surfaces
- Engine Intake Manifold Gaskets — individual intake manifold gaskets
- Engine Gasket Sets — comprehensive kits that address multiple engine sealing points at once
- Engine Valve Cover Gasket Sets — rubber and composite gaskets for the valve cover
- Engine Oil Drain Plug Gaskets — replacement crush gaskets for the oil drain plug
The widest selection here comes from Victor, MAHLE, Cometic, and Fel-Pro, each offering a broad range of GMC Sonoma sealing components in OE-replacement and performance styles. Other categories GMC Sonoma owners shop for: GMC Sonoma Exhaust and Tail Pipes, GMC Sonoma Exterior Lights and GMC Sonoma Springs and Suspension Parts, or browse all GMC Sonoma parts and accessories.