Intake Manifold Sealing Gasket for Tight, Efficient Airflow

Why this part is needed

To keep your engine breathing correctly, the intake runner joints must be perfectly sealed. This precision gasket maintains vacuum, stabilizes idle, and restores torque and fuel economy. It’s built to OEM spec for heat, pressure, and vibration, so your engine management can meter air and fuel accurately .

How it works

A multi-layer, heat-resistant material compresses between the manifold and cylinder head when bolts are torqued. The profiled sealing lips conform to tiny surface flaws, creating a durable barrier against unmetered air, oil mist, and coolant. This controlled compression keeps clamp load after many heat cycles, ensuring consistent engine sealing ☑️.

What happens if it’s broken

Leaks cause rough or high idle, hesitation, lean codes (P0171/P0174),misfires, and weak acceleration. You may hear a whistle on tip-in, smell coolant if a water jacket is compromised, or see white smoke. Long-term leaks can overheat valves, foul plugs, and damage catalytic converters ⚠️.

Tech tips for installation

• Clean both mating faces; avoid excess sealant.
• Torque manifold bolts in sequence to spec.
• Inspect PCV and vacuum hoses; smoke-test after install.
• Reset fuel trims and road test for stable idle .

Compatibility

• QX50/EX
• Q70/M
• Q40/G Sedan