KAX Engine Air Filter for Nissan Altima 2.5L (2013–2018) CA11450 — Premium 99.9% Efficiency, 20K Mile Life

KAX CA11450 is a premium replacement engine air filter designed to fit Nissan Altima 2.5L sedans (2013–2018), offering extended life and high-efficiency particle capture.

Replace your factory element with a precision-made KAX unit engineered to restore clean airflow while protecting engine components. Built from high-performance media and a reinforced frame, this CA11450 filter balances long service intervals with reliable filtration so you can drive with consistent performance and fewer maintenance interruptions.

How does this KAX filter improve engine protection?

The CA11450 uses a multi-layer filter media that traps fine dust and debris before they reach the engine’s intake. That reduces wear on internal parts and keeps sensors and throttle bodies cleaner for longer.

• 99.9% filtration efficiency for common airborne particles
• Special embossed paper layer for enhanced dust-holding capacity
• Reinforced shape stability to resist collapse under airflow

How long will the CA11450 last compared to a standard filter?

KAX designed this element with oiled cotton gauze and improved manufacturing to extend service life. Expect up to about 20,000 miles of effective use under normal driving conditions, which can reduce how often you change the air filter.

• Estimated life up to 20K miles between replacements
• Durable construction resists early clogging
• Packaged in a protective box to maintain integrity until installation

Will this filter fit my Nissan Altima and how is it installed?

The CA11450 is sized for Nissan Altima 2.5L sedans from model years 2013–2018; confirm fit with vehicle specifications before purchase. Installation follows the same basic steps as a standard paper element—remove the housing cover, swap the old element for the KAX filter, and reseal the housing.

• Intended vehicle application: Nissan Altima 2.5L Sedan 2013–2018
• Dimensions: 11.5" length × 11.3" width × 1.1" height (irregular shape)
• Non-washable and non-reusable—replace at end of service life

What performance benefits can I expect after switching to this filter?

By maintaining cleaner airflow and reducing particulate ingestion, the CA11450 helps preserve throttle response and consistent engine output. Drivers often notice steady acceleration and potentially more stable fuel economy compared with a heavily clogged stock filter.

• Improved airflow stability for more consistent acceleration
• Cleaner intake components over extended intervals
• Designed to support routine maintenance schedules with less frequent changes

Who is this product for? If you own a Nissan Altima 2.5L from 2013 through 2018 and want a higher-capacity replacement air filter that emphasizes longevity and filtration efficiency, the KAX CA11450 is built for you. It’s a straightforward direct-fit upgrade for drivers who prefer extended service intervals and better particulate control without modifying the intake system. Note: this is a non-washable, single-use replacement sold as one piece in a box—confirm vehicle compatibility before ordering.