RIDEX Exhaust Manifold Gasket – MX-5 Mk3 NC 1.8 & 2.0 • 27G0097

RIDEX 27G0097 Exhaust Manifold Gasket – MX-5 Mk3 NC 1.8 & 2.0

Replacement RIDEX steel exhaust manifold-to-cylinder-head gasket for Mazda MX-5 Mk3/NC 1.8 and 2.0-litre MZR petrol engines.

The exhaust manifold gasket seals the joint between the cylinder head exhaust ports and exhaust manifold. A gas-tight seal is essential for keeping hot exhaust gases inside the exhaust system and preventing exhaust leakage into the engine bay.

MazSpec confirms this gasket across the complete MX-5 Mk3/NC 1.8 and 2.0 MZR range from 2005 through 2014, including later facelift and Sport / 6-speed 2.0 applications.

Common signs of a failed exhaust manifold gasket include a ticking or blowing noise from the cylinder-head area, exhaust fumes in the engine bay, visible soot around the manifold joint, increased exhaust noise or leakage detected during inspection.

• Part type: Exhaust manifold gasket
• Installation position: Exhaust manifold to cylinder head
• Gasket construction: Steel
• Number of mounting / flange holes: 7
• Engine applications: Mazda MZR 1.8 and 2.0 petrol
• EAN: 4059191690619
• Quantity supplied: 1 exhaust manifold gasket
• Brand: RIDEX
• Part No.: 27G0097

Fitment advice: Confirmed for Mazda MX-5 Mk3/NC 1.8 and 2.0 petrol engines. The same gasket design is also used across a wider Ford / Mazda / Volvo Duratec-MZR engine family, but this listing is specifically configured for the MX-5 NC application.

Common replacement reasons: Exhaust leakage, damaged or corroded gasket material, exhaust manifold removal, cylinder-head work or replacement during exhaust manifold servicing.

Other items to consider: Inspect the exhaust manifold for cracks or distortion, check manifold studs and nuts for corrosion or damaged threads and examine the oxygen-sensor wiring and surrounding heat shields. Exhaust manifold fasteners that are badly corroded should be replaced where necessary.

Useful tools / consumables: Socket and spanner set, penetrating fluid, torque wrench, suitable gasket-surface cleaning equipment, replacement manifold studs/nuts where required and anti-seize compound only where permitted by the applicable Mazda workshop procedure.

Difficulty guide: DIY Difficulty: Moderate to Advanced. Exhaust manifold fasteners are exposed to repeated heat cycles and can seize or corrode, increasing the risk of broken studs during removal.

Why RIDEX? RIDEX sealing components provide a cost-effective aftermarket replacement manufactured to application-specific dimensions. This steel gasket is designed to restore the seal between the exhaust manifold and cylinder head.

What’s in the box: One RIDEX 27G0097 steel exhaust manifold gasket. Manifold studs, nuts, oxygen sensors and installation tools are not included.

Installation notes: Allow the exhaust system to cool completely before dismantling. Remove the manifold and old gasket, then clean the cylinder-head and manifold sealing faces without gouging or damaging them. Inspect the manifold for cracking or distortion and check all studs and threads. Install the new gasket in the correct orientation and tighten the manifold fasteners gradually and evenly using the applicable Mazda tightening sequence and torque specifications. Start the engine after installation and check carefully for exhaust leakage.