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The K&N 33-2409 is a washable reusable high-flow drop-in replacement air filter for the 2008 Nissan Sentra 2.5L and dozens of Nissan and Infiniti vehicles. Layered oiled cotton media delivers more airflow for added horsepower and acceleration while trapping dirt and contaminants. Installs directly into the factory airbox with no modifications and lasts for your vehicle's lifetime under K&N No-Hassle Lifetime Limited Warranty.
Key Features
- Engineered Power: Advanced air filter media increases horsepower, acceleration and overall engine performance.
- Reusable Filter Saves Money: Washable design saves up to $125 compared to buying multiple disposable filters over 200,000 miles of highway driving (based on OE MSRP).
- High-flow cotton gauze media balances power gains with filtration.
- Designed for long-term use with rugged construction to withstand engine bay conditions.
- Compatible with OEM hardware and seals.
- Precision engineering matches exact OEM specifications.
Fitment
| Years | Make | Model | Application |
|---|---|---|---|
| 2009-2012 | INFINITI | FX35 | Verify engine and application notes |
| 2013 | INFINITI | FX37 | Verify engine and application notes |
| 2009-2013 | INFINITI | FX50 | Verify engine and application notes |
| 2011-2013 | INFINITI | M56 | X |
| 2016-2024 | INFINITI | Q50 | Edition 30, Luxe, Premium, Red Sport 400, Sensory, Signature Edition, Sport |
| 2017-2022 | INFINITI | Q60 | Luxe, Premium, Red Sport 400, Sport |
| 2014-2019 | INFINITI | Q70 | 3.7, 5.6, 5.6 Luxe |
| 2015-2019 | INFINITI | Q70L | 3.7, 5.6, 5.6 Luxe |
| 2014-2017 | INFINITI | QX70 | Verify engine and application notes |
| 2011-2017 | Nissan | Juke | Nismo, Nismo RS, S, SL, SV |
| 2008-2015 | Nissan | Rogue | Krom, S, S Krom, SL, SV |
| 2014-2015 | Nissan | Rogue Select | S |
| 2007-2019 | Nissan | Sentra | FE+S, FE+SV, Nismo, S, SE-R, SL, SR, SR Turbo, additional manufacturer-listed applications |
Specifications
| Brand | K&N Engineering |
|---|---|
| Manufacturer Part Number | 33-2409 |
| Product Type | Air Filters - Drop In |
| Fitment Type | Vehicle Specific |
| Condition | New |
What's Included
One new K&N air filters - drop in identified by manufacturer part number 33-2409. Hardware, adapters, clamps, hoses, filters, and service supplies are included only when stated for this exact product.
About K&N Engineering
K&N develops reusable air filtration, intake, oil filtration, fuel filtration, and related performance products for vehicle-specific and dimensional applications.
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Frequently Asked Questions
How do I confirm K&N 33-2409 fits my vehicle?
Match the year, make, and model in the fitment table, then confirm the engine, factory housing, sensor layout, emissions notes, and any application restrictions stated for this exact part.
Is K&N 33-2409 washable and reusable?
Serviceability depends on the exact media used for this part number. Follow the K&N cleaning and oiling directions for this filter and never apply oil to media specified as dry.
What should be checked after installing K&N 33-2409?
Verify seals, clamps, fasteners, hoses, sensors, wiring, and surrounding clearance as applicable. Check for leaks or contact, then follow the manufacturer service and reinspection schedule.
Installation Instructions
- Direct drop-in fit requires no tools or airbox changes
- Compatible with OEM hardware and seals
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