K&N Engine Air Filter KNA-5096 — 18,000‑Mile Long-Life Replacement for Mazda, High Airflow

The K&N Engine Air Filter KNA-5096 is a long-life replacement air filter engineered to deliver up to 18,000 miles of reliable engine protection and high airflow for compatible Mazda models.

K&N has built a reputation since 1969 for performance-focused filtration, and the KNA-5096 brings that expertise to everyday driving. This 18,000-mile replacement filter uses premium synthetic or cellulose-blend media (depending on the application) to balance airflow and particle capture while fitting directly into your factory air box. It meets or exceeds OEM specifications, installs quickly, and offers a longer service interval than conventional disposable filters.

How does this filter improve performance and protection?

The KNA-5096 combines high-flow design with dense filter media to help maintain engine breathing while trapping contaminants. It is engineered to deliver up to 99% filtration efficiency for typical road conditions, reducing the risk of abrasive debris reaching the intake system. The result is consistent engine response without sacrificing protection.

• Premium synthetic or cellulose-blend media for balanced airflow and filtration
• Up to 99% particle capture under normal conditions
• Designed to meet or exceed OEM fit and function

How long will the KNA-5096 last and when should I replace it?

This K&N model is rated for up to 18,000 miles of service under normal highway driving conditions, which typically equates to about 1.5 years for average mileage. Replacement intervals depend on driving environment — dusty or off-road use shortens service life — but the 18K rating offers about 50% longer life than many standard 12,000-mile disposable filters. Always inspect the filter periodically to confirm service timing.

• Rated service life: up to 18,000 miles under normal highway use
• About 1.5 years at 12,000 miles/year average driving
• Inspect sooner in dusty, high-mileage, or off-road conditions

Is installation difficult and will it fit my Mazda?

The KNA-5096 is a direct-fit replacement designed to drop into the factory air box for compatible Mazda models, generally requiring no tools. K&N engineers the filter to match OEM dimensions and sealing surfaces so installation is straightforward for DIYers and technicians alike. Confirm fitment for your exact year and model before purchase.

• Direct-fit: installs into the factory air box with no modification
• Typical installation: minutes, often no tools required
• Compatible with: 2019–2026 Mazda 3, 2019–2026 Mazda CX-30, 2023–2026 Mazda CX-50

What materials and construction ensure durability?

The filter uses durable construction and premium media chosen for longevity and consistent performance. Depending on the application, K&N supplies either a synthetic or a cellulose-blend media that resists collapse and preserves airflow under normal service intervals. Robust end caps and sealing surfaces help maintain a secure fit throughout the filter’s life span.

• Rugged construction for repeated use up to the 18K interval
• Premium media resists deformation while maintaining airflow
• Sealed edges and precise molding to maintain fit and filtration

Who is this for? The K&N KNA-5096 is aimed at Mazda owners who want a longer-lasting replacement air filter that preserves engine performance and simplifies maintenance intervals. It’s a practical upgrade for drivers of 2019–2026 Mazda 3 and CX-30, and 2023–2026 CX-50 owners who prefer proven filtration technology, straightforward DIY installation, and fewer filter changes over time.