RIDEX Engine Air Filter – MX-5 Mk2 NB/NB-FL 1.6 & 1.8 • 8A0111

RIDEX 8A0111 Engine Air Filter – MX-5 Mk2 NB/NB-FL 1.6 & 1.8

Replacement RIDEX panel-type engine air filter for Mazda MX-5 Mk2/NB and Mk2.5/NB-FL 1.6 and naturally aspirated 1.8-litre petrol models.

The engine air filter sits inside the airbox and removes dust, road debris and airborne contamination from the intake air before it reaches the engine. A clean filter helps maintain unrestricted airflow while protecting the airflow meter, throttle body and internal engine components from abrasive contamination.

MX-5 fitment: MazSpec confirms 8A0111 for the NB/NB-FL 1.6 from January 1998 to October 2005, early NB 1.8 from January 1998 to July 2000, and NB-FL 1.8 from August 2000 to October 2005. Its detailed application stops at 146 PS, so the 1.8i Turbo is excluded from this listing.

• Part type: Engine air filter / panel filter
• Filter type: Filter insert
• Length: 260 mm
• Width: 164 mm
• Height: 40 mm
• Filtration efficiency: Over 99%
• Airflow characteristic: Low airflow resistance
• Approximate weight: 0.328 kg
• EAN: 4059191332267
• Quantity supplied: 1 air filter
• Brand: RIDEX
• Part No.: 8A0111

Fitment advice: Always compare the replacement element with the existing filter and airbox before installation. The correct element should sit squarely in the airbox with its sealing edge fully seated and without distortion.

Common replacement reasons: Scheduled engine servicing, visibly dirty or blocked filter media, reduced airflow, increased intake restriction, contamination with oil or water, or replacement where service history is unknown.

Related items to inspect: Check the airbox for dirt or debris, inspect the intake hose for cracking or air leaks and inspect the mass-air-flow sensor and throttle-body area where applicable. Do not allow loose contamination to enter the intake while the filter is removed.

Useful tools / consumables: Basic hand tools as required for the airbox fasteners, clean cloths and a vacuum or suitable means of removing loose debris from the airbox.

Difficulty guide: DIY Difficulty: Easy. Air-filter replacement is a routine service operation and normally requires no specialist equipment.

Why RIDEX? RIDEX air filters provide a cost-effective aftermarket service replacement using application-specific dimensions and filter media designed to combine effective filtration with low intake-air resistance.

What’s in the box: One RIDEX 8A0111 replacement panel air-filter element.

Installation notes: Open the airbox and remove the old filter without allowing debris to fall into the clean side of the intake. Remove loose dirt from the airbox, install the replacement element in the correct orientation and ensure the sealing edge is fully seated. Refit the airbox securely and check that all intake hoses and clips disturbed during the service are correctly connected.