Eliminate air leaks at the top of your intake system with a Platinum Fuel Injection Plenum Gasket Set. The plenum, also known as the upper intake manifold, is the chamber that collects incoming air from the throttle body and distributes it evenly to each cylinder through the lower intake manifold. The plenum gasket seals the joint between these two sections, ensuring all air entering the engine is measured by the engine management system and nothing is drawn in from outside.
Over time, heat cycling, engine vibration and exposure to oil vapour from the crankcase ventilation system cause plenum gaskets to harden and shrink, creating vacuum leaks. Typical signs include a rough or hunting idle, hesitation or stumbling on acceleration, a hissing sound from the top of the engine, poor fuel economy and lean running fault codes that trigger the check engine light. Because unmetered air upsets the air fuel ratio, even a small leak at the plenum can noticeably affect how the engine drives.
Platinum plenum gasket sets are precision engineered to match the port shapes and bolt pattern of the original gaskets for a direct replacement fit. Made from high quality materials designed to resist heat, fuel and oil vapour, they restore an airtight seal for smooth idling and consistent engine performance. A new set should be fitted whenever the plenum is removed, including during spark plug, ignition coil, injector or lower intake manifold work on engines where the plenum must come off for access. Use the My Garage feature to confirm this gasket set suits your vehicle before ordering.
- Product Type - Fuel Injection Plenum Gasket Set
- Location - Upper intake manifold (plenum) to lower intake manifold
- Material - Heat and fuel resistant gasket materials
- Contents - Plenum gaskets plus related seals (where applicable)
- Fitment - Direct replacement for the original part
- Application - Vehicle specific, check fitment via My Garage
- Warranty - Refer to manufacturer's warranty
