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Audi B9 A4 Quattro 2.0T Engine Air Filters

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ES#4423854 - E-0647 - Drop In Replacement Air Filter  - High-Flow cotton gauze filter designed to be a performer, while lasting a lifetime - K&N - Audi

High-Flow cotton gauze filter designed to be a performer, while lasting a lifetime affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
K&N - Corporate Logo
ES#:
4423854
Mfg#:
E-0647
In Stock at Vendor
$104.99 USD
Free Shipping
ES#4137423 - CL-1 - ITG Foam Air Filter Cleaning Fluid CL1 - Used to clean the filter - ITG Air Filters  - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Used to clean the filter affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
ITG Air Filters  - Corporate Logo
ES#:
4137423
Mfg#:
CL-1
In Stock
$11.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4145063 - 8W0133843C - Air Filter - Keep clean air running through your engine - WIX - Audi

Keep clean air running through your engine affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
WIX - Corporate Logo
ES#:
4145063
Mfg#:
8W0133843C
In Stock at Vendor
$43.99

This product was last offered at the strikethrough price on
12-20-2025

$37.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3546630 - nt0-aerosolKT - No-Toil Foam Filter Oil - For use with ITG foam filters - No T-oil - Audi BMW Volkswagen Mercedes Benz MINI Porsche

For use with ITG foam filters affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
No T-oil
ES#:
3546630
Mfg#:
NT0-AEROSOLKT
In Stock
$17.00

This product was last offered at the strikethrough price on
05-27-2026

$16.99 USD
Free Shipping
on orders $49 and up
ES#2626404 - C9003 - Filter Cleaning Fluid - 500ml - Removes dirt from oiled Pipercross filters to regain air flow performance - Pipercross - Audi BMW Mercedes Benz MINI Porsche

Removes dirt from oiled Pipercross filters to regain air flow performance affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Pipercross - Corporate Logo
ES#:
2626404
Mfg#:
C9003
Ships on Jun 26, 2026
$21.99 USD
Free Shipping
on orders $49 and up
ES#4345970 - 8W0133843C - Air Filter - Keep clean air running through your engine - Febi - Audi

Keep clean air running through your engine affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
4345970
Mfg#:
8W0133843C
Special Order: No Guaranteed ETA
$35.99 USD
This product is lifetime replacement eligible Lifetime Replacement

More About Engine Air Filters

Your engine needs fresh air to operate properly. Don't let an old, crusty, clogged-up air filter stand in your way! Replace it with an OEM engine air filter or select one of our high-quality aftermarket engine air filter replacements or upgrades!

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