Apex AMS11640 Fuel Injection Plenum Gasket Set - Upper

Fuel Injection Plenum Gasket Set for Upper Intake Service

The Apex AMS11640 fuel injection plenum gasket set is made for upper intake sealing service on select GM crossover applications. It is a direct-fit sealing component for restoring the connection between the plenum and intake surfaces on the listed vehicles.

• Fuel injection plenum gasket set for upper intake sealing
• Fits 2008 Buick Enclave, Upper
• Fits 2007-2008 GMC Acadia, Upper
• Fits 2007-2008 Saturn Outlook, Upper
• Part number: AMS11640
• Brand: Apex

Application Details

Compatible With 2008 Buick Enclave upper intake service, 2007-2008 GMC Acadia upper intake service, and 2007-2008 Saturn Outlook upper intake service. The Apex AMS11640 is built for the upper plenum sealing point, where a secure gasket interface is critical to maintaining intake integrity. This part cross-references no listed alternate part numbers in the provided data.

Common Repair Uses

• Intake manifold vacuum leaks at the upper plenum
• Rough idle related to intake sealing loss
• Unmetered air entering the intake tract
• Check engine light concerns tied to intake gasket failure
• Air leakage after upper intake service

Installation Notes

Verify the engine configuration and upper intake layout before installation. Clean both mating surfaces thoroughly, inspect for warpage or damage, and follow the vehicle service procedure for torque sequence and fastener reuse guidance. Confirm the gasket seats evenly across the upper plenum before reassembly.

Quality Assurance

Apex AMS11640 is cataloged as a fuel injection plenum gasket set for the specified upper-position applications, with fitment listed for 2008 Buick Enclave, 2007-2008 GMC Acadia, and 2007-2008 Saturn Outlook.