Apex Gaskets AMS3590 Upper Intake Manifold Gasket Set

The Apex Gaskets AMS3590 is an upper intake manifold gasket set engineered for GM 3.8L V6 engines. This gasket set creates a critical seal between the upper intake manifold and the lower manifold assembly, preventing coolant leaks and maintaining proper air-fuel mixture flow into the combustion chambers.

Key Features:

• Direct replacement gasket set for GM 3.8L (3800 Series II) V6 engines
• Engineered to prevent coolant leaks that can lead to engine damage
• Prevents air leaks that cause rough idle, misfires, and reduced fuel economy
• Designed for upper intake manifold sealing applications
• Quality construction using durable gasket materials

The GM 3.8L intake manifold gasket is a common maintenance item on these engines. Failed gaskets can cause coolant loss, rough running conditions, and in severe cases, internal coolant leaks that may damage the engine. This gasket set provides the necessary components to restore proper sealing during intake manifold service or replacement.