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CORTECO-MICRONAIR Air Filter - 49359273

CORTECO-MICRONAIR Air Filter - 49359273

MICRONAIR
Availability:
5+ in stock, ready to be shipped

Ships same or next business day

SKU 49359273-CORTECO
$60.74 - $60.74
$60.74
$60.74 - $60.74
$60.74
CALIFORNIA WARNING

Handling passenger or off-highway motor vehicle parts can expose you to chemicals such as phthalates and lead, which can cause cancer and reproductive harm. To minimize exposure, service the vehicle in a well-ventilated area, wear gloves, and wash your hands. For more information see www.P65Warnings.ca.gov/motor-vehicle-parts.

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CORTECO-MICRONAIR

Air Filter

This product also goes by these part numbers: 420 133 844 E, 420133844E, 49359273

This part also goes by the following cross reference.

Cross Reference Part Number: 420133844E

Fits These Vehicles 3 applications
Audi
Make Model Engine Years
Audi R8 5.2L V10 2014–2015
Audi R8 2017–2018
Audi R8 2020–2023

Fitment data last updated: 2026-07-18

Fits 3 vehicle applications Check vehicle fitment before ordering View fitment

About this Air Filter

The MICRONAIR 49359273-CORTECO air filter cleans the air entering your engine, stopping dust and debris that would otherwise wear internal parts. A clean filter helps keep airflow, fuel economy and engine performance where they should be.

Frequently asked questions

How often should I replace the air filter?

Follow the interval in your car's maintenance schedule, and replace it sooner if you drive in dusty conditions or the filter looks dark and clogged when inspected.

What are the signs of a dirty air filter?

A visibly dirty or clogged element, reduced performance or throttle response, and sometimes lower fuel economy. On modern engines the effect is often gradual, so regular inspection is the best guide.

Is a reusable filter better than a paper filter?

Reusable cotton or synthetic filters can be cleaned and re-oiled instead of replaced. If you use an oiled filter, avoid over-oiling it, because excess oil can contaminate the mass air flow sensor.

Can I replace the air filter myself?

Yes, on most cars it is one of the easiest maintenance jobs: open the airbox, swap the element, and make sure the housing seals properly so no unfiltered air can get past.

How do I make sure this air filter fits my car?

Compare the part numbers listed on this page with the number on your old part or in your vehicle's parts catalog, and check the fitment information. If you are unsure, contact us with your VIN before ordering.

Euromotiv is an independent retailer of OEM, Genuine, and aftermarket automotive parts. We are not affiliated with, endorsed by, or authorized by Audi AG, Volkswagen AG, BMW AG, Mercedes-Benz Group AG, Dr. Ing. h.c. F. Porsche AG, MINI, or any other vehicle manufacturer. All trademarks, logos, and brand names are the property of their respective owners and are used solely for identification and compatibility purposes.