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- USA
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Ships within 48 hours · Estimated delivery Sep 13 - Sep 18
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For Your Every Summer RSVP, with Code: SUMMER15
Description
K&N Panel Filter E-1987K&N washable, reusable High Flow Air Filters feature a state of the art design of layered, oiled cotton media engineered to improve airflow and capture contaminants, and are designed to provide an increase in horsepower. Each performance air filter is reusable, engineered to last for the entire lifespan of your vehicle, and backed by K&N's 10 Year Million Mile Limited Warranty. K&N drop in replacement filters are designed to install easily into your
K&N® washable, reusable High-Flow Air Filters™ feature a state-of-the-art design of layered, oiled cotton media engineered to improve airflow and capture contaminants, and are designed to provide an increase in horsepower.
Each performance air filter is reusable, engineered to last for the entire lifespan of your vehicle, and backed by K&N's 10-Year/Million Mile Limited Warranty.
K&N drop-in replacement filters are designed to install easily into your factory air box. Upgrade today and start enjoying superior airflow and superior performance from K&N's most popular product!
Specifications:
- Air Filter Shape: Round Tapered
- Height: 154 mm
- Package Contents: 1 Air Filter
- Package Quantity: 1
- Washable: Yes
- Product Style: Unique Universal Air Filter
- Filter Material: Cotton Gauze
- Flange Inside Diameter: 92 mm
- Flange Length: 16 mm
- Flange Type: Centered
- Flanges: 1
- Base Outside Diameter: 152 mm
- Top Outside Diameter: 129 mm
- Top Style: Rubber
- Top Material: None
- Weight: 0.8 kg
- Filter Re-Oiling Amount: 63 ml
- Product Box Height: 184 mm
- Product Box Length: 165 mm
- Product Box Width: 165 mm
- Warranty: 1,000,000 Miles/10 Year
Vehicle applications:
| Make | Model | Engine | Year | Specific |
|---|---|---|---|---|
| Audi | A3 | 3.0L V6 Diesel | 2012-2012 | |
| Audi | A4 | 2.7L V6 Diesel | 2008-2011 | |
| Audi | A4 | 3.0L V6 Diesel | 2008-2015 | |
| Audi | A4 | 3.0L V6 Gas | 2009-2015 | |
| Audi | A4 | 3.2L V6 Gas | 2009-2011 | |
| Audi | A4 | 3.2L V6 Gas | 2008-2008 | Non-US Models |
| Audi | A4 | 4.2L V8 Gas | 2008-2009 | |
| Audi | A4 Quattro | 3.0L V6 Diesel | 2012-2015 | |
| Audi | A4 Quattro | 3.0L V6 Gas | 2012-2015 | |
| Audi | A4 Quattro | 3.2L V6 Gas | 2009-2009 | |
| Audi | A4 Quattro | 3.2L V6 Gas | 2008-2008 | Non-US Models |
| Audi | A5 | 2.7L V6 Diesel | 2007-2011 | |
| Audi | A5 | 3.0L V6 Diesel | 2016-2016 | 8T/8F Model |
| Audi | A5 | 3.0L V6 Diesel | 2007-2015 | |
| Audi | A5 | 3.0L V6 Gas | 2008-2016 | |
| Audi | A5 | 3.2L V6 Gas | 2007-2011 | |
| Audi | A5 | 4.2L V8 Gas | 2008-2011 | |
| Audi | A5 Quattro | 3.0L V6 Diesel | 2012-2016 | |
| Audi | A5 Quattro | 3.0L V6 Gas | 2012-2016 | |
| Audi | A5 Quattro | 3.2L V6 Gas | 2009-2011 | |
| Audi | A5 Quattro | 3.2L V6 Gas | 2008-2008 | Non-US Models |
| Audi | Q5 | 3.0L V6 Diesel | 2008-2016 | |
| Audi | Q5 | 3.0L V6 Gas | 2012-2017 | |
| Audi | Q5 | 3.2L V6 Gas | 2008-2013 | |
| Audi | S4 | 3.0L V6 Gas | 2016-2016 | 8K/B8 Model |
| Audi | S4 | 3.0L V6 Gas | 2010-2015 | |
| Audi | S4 | 3.2L V6 Gas | 2008-2011 | |
| Audi | S5 | 3.0L V6 Gas | 2016-2017 | US Models Only, 8T/8F Model |
| Audi | S5 | 3.0L V6 Gas | 2010-2015 | |
| Audi | S5 | 3.2L V6 Gas | 2010-2011 | |
| Audi | S5 | 4.2L V8 Gas | 2008-2012 | |
| Audi | SQ5 | 3.0L V6 Diesel | 2013-2016 | |
| Audi | SQ5 | 3.0L V6 Gas | 2013-2017 |
Cross references:
- Audi 8K0133843
- Audi 8K0133843D
- Audi 8K0133843E
- Autopart International 5000232999
- Autopart International 5000255595
- BMC FB5330801
- Carquest 83143
- Champ Labs. AF3940
- Hastings AF1482
- Luber-Finer AF3940
- Mahle LX2091D
- Mann-Hummel C16114X
- MicroGard MGA49143
- Mobil MA3940
- Parts Plus AF3940
- Premium Guard PA5813
- Pronto PA5813
- Purolator A35813
- Ryco A1837
- Service Champ AF5813
- STP SA10484
- Valvoline VA448
- Warner WAF3940
- Wesfil WA5271
- Wesfil WA5292
- WIX 49143
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.7 ★★★★★
Based on 9 reviews
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Product Reviews
★★★★★ 3
Too small
Material Type: Gray - 3 Pairs, Size: X-Large
Too tight! Even size large used for a man with smaller feet is too tight. Also, no instructions for use or care.
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Reviewed in the United States on May 21, 2026
★★★★★ 5
Good fit
Material Type: Black - 3 Pairs, Size: X-Large
My husband just started using these and they feel comfortable. Hasn't used them long enough to see if his heels are better. He has a high arch so I bought him the XL and they fit perfectly.
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Reviewed in the United States on April 24, 2026
★★★★★ 5
No more painful cracked heels! These really do work!
Material Type: Black - 3 Pairs, Size: X-Large
These really do work well. This is one of the first winters that I have not experienced painful, cracked heels. They are long lasting, and definitely make my heels smoother and softer after wearing them. For the first few times wearing them I simply went with the moisturizer embedded in them. After a few uses I then covered my heels with Aquaphor Advanced Therapy Healing Ointment. This worked even better, and I would recommend it. I am very glad I bought these. Of note, I have really big feet that are quite wide and the XL are a little snug but not uncomfortably so. I use them overnight, but also have worn them under socks and they work fine.
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Reviewed in the United States on February 3, 2026
★★★★★ 5
Works for foot psoraisis
Size: 2 pairs black L
Got these for work (service industry) to reduce issues with psoriasis and blisters while putting on 20k+ steps a day. Over time the wounds healed and I could work without so much pain. I now don't use them all the time like I used to, only when a new lesion or blister appears, too prevent a breakout. Tip: if you're not in full breakout, wear thick socks under these as a barrier to friction.
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Reviewed in the United States on April 28, 2026
★★★★★ 4
Work well but run small
Size: 1 pair black L
They do seem to run a bit small. I bought them for my bf but snagged them from him because I couldn’t resist! I’m about a W8/12 and they were just a little big but unlike others, I just put them on while sleeping and didn’t walk around with them. If you’re just planning on that, they did a great job at sloughing and moisturizing 😎
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Reviewed in the United States on April 25, 2026