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SKU: 33-2478 | UPC: 024844314062
K&N 33-2478 Replacement Air Filter 11.438in O/S Length x 11.375in O/S Width x 1in H for 2013-2018 Nissan Altima 2.5L
K&N 33-2478 is a direct drop-in replacement high-flow air filter designed for 2013-2018 Nissan Altima 2.5L models including Base S SL SR SV trims. This washable reusable filter uses layered oiled cotton media to deliver more airflow for added horsepower and acceleration while trapping contaminants. Engineered to last the life of your vehicle it installs easily into the factory airbox for immediate performance gains.
Key Features
- 4 Layers of Protection: Multiple layers of premium cotton gauze with a tacking agent form a mesh that blocks and traps dirt and harmful particles from reaching your engine.
- Clean Every 5 Years: Requires cleaning only every 75000 miles under normal highway driving or 5 years at 15000 miles per year average.
- Easy Installation: Pre-oiled and ready to drop into your factory airbox for one of the simplest vehicle upgrades with fast performance improvements.
- Engineered Power: Advanced filter media increases horsepower acceleration and overall engine response.
- Lifetime Limited Warranty: Covered by K&N No-Hassle Lifetime Limited Warranty for stock replacement filters with limitations applying.
Product Notes
- Filter measures 11.438in outside length 11.375in outside width 1in height with 7.5in flange inside diameter and centered rubber flange.
- Wash and re-oil using K&N cleaning kit for repeated use over 200000 miles.
- Reduces landfill waste compared to disposable filters with over 200 million discarded annually.
Installation Notes
- Professional installation recommended.
- Direct replacement no vehicle modifications or tools required beyond airbox access.
- Compatible with factory airbox hardware installs in under 5 minutes.
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2013-2017 | Nissan | Altima | Base |
| 2013-2018 | Nissan | Altima | S |
| 2013-2018 | Nissan | Altima | SL |
| 2016-2018 | Nissan | Altima | SR |
| 2013-2018 | Nissan | Altima | SV |
Why Choose K&N?
- Proven leader in high-performance air filtration since 1969.
- Layers of oiled cotton gauze deliver more airflow with full engine protection.
- Precision engineering fits factory specs for reliable long-term performance.
Frequently Asked Questions
-
Q: Does this fit my 2015 Nissan Altima 2.5L S?
A: Yes K&N 33-2478 fits all 2013-2018 Nissan Altima 2.5L models including S SL SV Base and SR trims with direct drop-in installation. -
Q: What material is the filter made from?
A: Premium cotton gauze layers treated with oil and a tacking agent for high-flow filtration and contaminant capture. -
Q: What does the lifetime warranty cover?
A: No-Hassle Lifetime Limited Warranty covers defects in materials or workmanship for the vehicle life with standard limitations.
Shipping &. Handling
- Method: UPS Ground or FedEx Ground
- Availability: In stock - ships same or next business day
- Packaging: Protective box 14.1 x 12.4 x 2 inches
- Weight: 1.1 lbs
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