FILTERWEARS Pre-Filter K274 For K&N Air Filter RU-5173 & RU-4940
FILTERWEARS Pre-Filter K274 For K&N Air Filter RU-5173 & RU-4940
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Direct from manufacturer. Made in the USA.
Filter material: 100% monofilament polyester with water repellent finish standard on all pre-filters. Closed top, round tapered pre-filter.
Measurements: 5.88"(top diameter), 7.5"(base diameter), 6"(height)
Fits K&N Air Filters: RU-5173, RU-4940
Cross Reference: K&N Precharger RU-5173DK
Fits K&N Intake Kits: 57-2575, 57-2580, 57-2581, 57-2583, 57-2591, 57-2592, 57-2596, 63-2592, 63-2596, 63-2599, 77-2580KP, 77-2581KP, 77-2584KP, 77-2585KS, 77-2591KP
Vehicle Applications:
- Fits 2017–2026 Ford F-150 3.5L EcoBoost V6 (w/ K&N 63-2599 intake)
- Fits 2017–2026 Ford F-150 Raptor 3.5L EcoBoost V6 (w/ K&N 63-2599 intake)
- Fits 2018–2025 Ford Expedition 3.5L EcoBoost V6 (w/ K&N 63-2599 intake)
- Fits 2018–2021 Lincoln Navigator 3.5L EcoBoost V6 (w/ K&N 63-2599 intake)
- Fits 2015–2017 Ford Expedition 3.5L EcoBoost V6
- Fits 2015–2017 Lincoln Navigator 3.5L EcoBoost V6
- Fits 2015–2017 Ford F-150 5.0L V8 (w/ K&N 57-2591 / 77-2591KP intake)
- Fits 2015–2016 Ford F-150 3.5L EcoBoost V6 (w/ K&N 57-2592 / 63-2592 intake)
- Fits 2015–2016 Ford F-150 3.5L naturally aspirated V6 (w/ K&N 57-2596 / 63-2596 intake)
- Fits 2012–2014 Ford F-150 3.7L V6 (w/ K&N 77-2585KS intake)
- Fits 2011–2014 Ford F-150 3.5L EcoBoost V6 (w/ K&N 57-2583 intake)
- Fits 2011–2014 Ford F-150 5.0L V8 (w/ K&N 57-2581 / 77-2581KP intake)
- Fits 2011–2012 Ford F-150 6.2L V8 (w/ K&N 77-2584KP intake)
- Fits 2011–2014 Ford F-250 Super Duty 6.2L V8
- Fits 2011–2014 Ford F-350 Super Duty 6.2L V8
- Fits 2009–2010 Ford F-150 4.6L V8 (w/ K&N 57-2580 / 77-2580KP intake)
- Fits 2009–2010 Ford F-150 5.4L V8 (w/ K&N 57-2575 intake)
- Fits 2010 Ford F-150 SVT Raptor 5.4L V8 (w/ K&N 57-2575 intake)
- Fits 2007–2014 Ford Expedition 5.4L V8 (w/ K&N 57-2575 intake)
- Fits 2007–2014 Lincoln Navigator 5.4L V8 (w/ K&N 57-2575 intake)
- Fits 2008–2010 Ford F-250 Super Duty 5.4L V8
- Fits 2008–2010 Ford F-350 Super Duty 5.4L V8
- Fits 1999–2004 Ford Mustang 3.8L V6
- Also suitable for universal and custom applications using air filters with the same dimensions.
Important: This listing includes the FILTERWEARS pre-filter only. Air filter is not included.

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$26.95
Arrived quickly. Fit perfectly.
It's a little big for my filter but work great my filter is around maybe 7" wide on top 6" tall