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Product Info
Product Info
The K&N High-Flow Air Filter KNE-0646 (Interchangeable with A1939, A2002) is a washable, reusable cotton gauze filter for a range of Audi models. It suits the Audi A4, A4 allroad, A5 Quattro, Q5 Sportback, RS5 and SQ5 built from 2014 to 2025, fitted with 2.0 litre four-cylinder petrol, 2.9 litre V6 petrol, 3.0 litre V6 petrol or 3.0 litre V6 diesel engines.
The layered, oiled cotton gauze media is engineered to improve airflow into the engine while capturing contaminants, and is designed as a drop-in replacement that fits directly into the factory air box in place of the standard paper element. Being washable and reusable, the filter is designed to last for the life of the vehicle rather than being thrown away and replaced.
This filter corresponds to Audi OEM part numbers 8W0133843, 8W0133843C and 8W0133843D, and is interchangeable with parts including Ryco A1939 and A2002, Fram CA12268, and WIX 49043 and WA10866. It is made in the USA and is covered by K&N's 10-Year/Million Mile Limited Warranty.
Features
- Suits Audi A4, A4 allroad, A5 Quattro, Q5 Sportback, RS5 and SQ5 models, 2014 to 2025
- Washable, reusable cotton gauze filter media engineered to last the vehicle's lifetime
- Multiple layers of oiled cotton gauze trap contaminants while improving airflow
- Filters to a reported efficiency of up to 99%
- Outside diameter of 168mm and inside diameter of 89mm for a direct drop-in fit
- Cross-references to Autopart International 5000635302, BMC FB96004, Carquest 97368, Champ Labs AF3630 and
- Made in the USA
- 10-Year/Million Mile Limited Warranty
Tech Spec
| Vehicle Fitment | Audi A4, A4 allroad, A5 Quattro, Q5 Sportback, RS5, SQ5 (2.0L L4 Gas, 2.9L V6 Gas, 3.0L V6 Gas, 3.0L V6 Diesel), 2014-2025 |
|---|---|
| OEM Part Number | Audi 8W0133843, 8W0133843C, 8W0133843D |
| Cross Reference | Autopart International 5000635302, BMC FB96004, Carquest 97368, Champ Labs AF3630, Ecogard XA10639 |
| Filter Type | High-flow replacement air filter, washable and reusable |
| Height (mm) | 140mm |
| Outside Diameter (mm) | 168mm |
| Inside Diameter (mm) | 89mm |
| Shape | Unique |
| Filter Media | Cotton Gauze |
| Washable / Reusable | Yes |
| Filtration Efficiency (%) | Up to 99% |
| Warranty | No-Hassle Lifetime Limited |