Browse GMC Intake Manifold Components. Locate GMC Diesel Engine Air Intake System Components & GMC Engine Air Intake Parts. Get GMC Air Intake Manifold Parts Kit. Maintaining your GMC's intake manifold components is crucial for optimal engine performance. Regular inspections can reveal cracks or leaks, signaling the need for a replacement to prevent further engine issues. To extend the lifespan, ensure all seals are tight and use high-grade gaskets resistant to heat and pressure. When selecting a new intake manifold, consider whether a polymer or aluminum design suits your performance needs, with the former offering weight savings and the latter improved heat dissipation. Installation is straightforward with the correct tools, but always adhere to torque specifications to avoid warping. Shop our robust selection for a durable upgrade that enhances your vehicle's power delivery.