RIDEX Catalytic Converter Front Gasket – MX-5 Mk1 NA • 27G0120

RIDEX 27G0120 Catalytic Converter Front Gasket – MX-5 Mk1 NA

Replacement RIDEX exhaust flange gasket for the front catalytic-converter connection on applicable Mazda MX-5 Mk1/NA models.

The gasket seals the exhaust-system flange ahead of the catalytic converter, preventing hot exhaust gases from escaping between the mating surfaces. A sound gasket helps maintain a gas-tight exhaust system and prevents blowing noises, soot deposits and fumes beneath the vehicle.

MX-5 application: MazSpec identifies RIDEX 27G0120 specifically as the catalytic converter front gasket for the Mk1/NA. Its detailed application data confirms the 1.6 115 PS model from May 1990 to January 1994 and the 1.8 from January 1993 through April 1998.

Later 1.6 caution: Although MazSpec's headline describes the component as compatible with the Mk1/NA generally, its detailed vehicle table does not list the later 90 PS 1.6 produced after January 1994. Later 1.6 vehicles should therefore be checked against the original flange and OE reference before ordering.

Common signs of a failed exhaust gasket include a blowing or ticking noise, visible soot around the flange, exhaust fumes beneath the vehicle, increased exhaust volume or leakage detected during an MOT or workshop inspection.

• Part type: Exhaust / catalytic-converter flange gasket
• MX-5 installation position: Catalytic converter front connection
• EAN: 4059191756490
• Approximate manufacturer-listed weight: 0.024 kg
• Quantity supplied: 1 gasket
• Brand: RIDEX
• Part No.: 27G0120

Fitment advice: Confirm the existing flange arrangement and OE reference before installation. This gasket is associated with multiple Ford, Mazda, Hyundai, Mitsubishi, Nissan, Subaru and Toyota OE references because the same basic exhaust-flange gasket design was used across numerous vehicle applications.

Common replacement reasons: Exhaust leakage, damaged or compressed gasket material, corrosion around the flange, catalytic-converter removal or replacement during exhaust-system servicing.

Other items to consider: Inspect the catalytic converter, adjoining front pipe or manifold section, flange faces, mounting bolts or studs, exhaust hangers and heat shields. Replace heavily corroded or damaged exhaust fasteners where necessary.

Useful tools / consumables: Socket and spanner set, penetrating fluid, suitable flange-cleaning equipment, torque wrench and replacement exhaust fasteners where required.

Difficulty guide: DIY Difficulty: Moderate. Exhaust-system fasteners are exposed to repeated heat cycles, moisture and corrosion and may seize or break during removal.

Why RIDEX? RIDEX exhaust sealing components provide a cost-effective aftermarket replacement manufactured for OE-equivalent exhaust flange applications.

What’s in the box: One RIDEX 27G0120 exhaust flange gasket. Catalytic converter, exhaust fasteners and installation tools are not included.

Installation notes: Allow the exhaust system to cool completely before dismantling. Remove the old gasket and clean both flange faces without damaging them. Check the mating surfaces for corrosion, cracking or distortion, position the replacement gasket correctly and tighten the flange hardware evenly to the applicable specification. Start the engine after installation and check the joint carefully for exhaust leakage.