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Description
xK&N Engine Air Filter KNX-2457 — Extended Life 24,000 Mile Replacement
Since 1969, K&N has stood for performance and protection in air filtration. The KNX-2457 filter is built for drivers who want a longer service life without compromising engine cleanliness. Designed for 2010 to 2019 Jeep and Dodge SUV V6 and V8 applications including Grand Cherokee and Durango, this premium filter meets or exceeds OEM specifications and fits directly into the factory air box in minutes.
Two important advantages set this filter apart. First, the extended life design delivers up to 24,000 miles between changes, roughly doubling the lifetime of many traditional filters. Second, a specially treated media delivers up to 99.5 percent filtration efficiency, helping to keep intake air clean while enabling steady airflow to the engine.
The media choice can be synthetic or cellulose blend depending on the application, with the aim of balancing filtration and airflow. The result is a filter that is easy to install and designed to work with your vehicle's existing intake pathway, potentially supporting more consistent performance as driving conditions change.
What our customers notice in real world use
- Longer intervals between replacements, which can reduce maintenance stops during road trips.
- Potential for improved throttle response and engine breathing thanks to better airflow.
- Reliable protection against dust and debris under varied climates and road conditions.
In practice, this filter is paired with the vehicle types listed and aims to deliver a hassle-free upgrade. Installation is designed to be quick, and the filter is built to endure normal highway driving without frequent changes, while aligning with OEM performance criteria.
Practical notes
- Extended-life life: replace every 24,000 miles under normal highway conditions (2 years based on 12,000 miles per year).
- Simple fit: installs into the factory air box with minimal time and effort.
- OEM alignment: engineered to meet or exceed factory specifications for compatibility and reliability.
FAQ
Q: How long does the KNX-2457 air filter last?
A: Up to 24,000 miles under normal highway driving, about twice as long as typical 12k-mile filters.
Q: Is installation difficult on 2010-2019 Jeep/Dodge SUVs?
A: No. It installs into the factory air box in minutes with basic hand tools.
Shipping & Return
xReturns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
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