K&N Engine Air Filter KNA-2394 — Long-Life 18,000-Mile Replacement with 99% Filtration Efficiency

K&N Advantage Plus KNA-2394 is a long-life engine air filter engineered to protect your engine with up to 99% filtration efficiency and a service interval of 18,000 miles.

This K&N performance air filter is built as a direct-fit replacement for many Buick, Chevrolet, GMC and Saturn SUV models from 2007–2017. It combines durable construction with premium filter media to extend service life compared with typical disposable filters, installs easily into the factory air box, and is made to meet or exceed OEM standards so you can restore correct airflow and filtration without modifying your vehicle.

How does this filter improve protection and longevity for my engine?

The K&N Advantage Plus uses a premium synthetic or cellulose blend media selected for each application to block contaminants effectively while maintaining airflow. That media delivers up to 99% particle capture efficiency, reducing the chance of abrasive debris reaching internal components. Because the design focuses on durability, the filter maintains consistent performance over an extended service interval.

• Premium synthetic or cellulose blend media for high-efficiency filtration
• Up to 99% protection against harmful particles
• Constructed to withstand up to 18,000 miles of normal highway driving
• Maintains proper airflow to preserve engine performance

Will it fit my Buick Enclave, Chevrolet Traverse, GMC Acadia or Saturn Outlook?

K&N KNA-2394 is manufactured as a direct-fit replacement for specified model years and trims listed by the brand. Installation is designed to slot into your factory air box without modification, making it a straightforward swap during routine maintenance. Always verify fitment against your vehicle’s year and engine variant before purchase.

• Compatible with 2008–2017 Buick Enclave models
• Compatible with 2009–2017 Chevrolet Traverse models
• Compatible with 2007–2016 GMC Acadia and 2017 Acadia Limited
• Compatible with 2007–2010 Saturn Outlook

How often should I replace this K&N air filter and what maintenance is required?

The Advantage Plus filter is rated for up to 18,000 miles under normal highway driving, which typically corresponds to about 1.5 years for average annual mileage. Replacement frequency can vary with driving conditions; dusty or off-road environments may require more frequent changes. No special tools are needed—installation takes just minutes in most vehicles.

• Service interval: replace every 18,000 miles under normal highway driving
• Shorter intervals recommended for severe or dusty conditions
• Simple drop-in installation into factory air box—no modifications
• 1-year limited warranty for peace of mind

What makes this K&N filter different from standard disposable filters?

Compared with many disposable filters rated for roughly 12,000 miles, the K&N Advantage Plus offers roughly 50% longer life thanks to its robust materials and media formulation. That reduces the frequency of replacements and can lower lifetime maintenance effort. The filter is engineered to meet OEM airflow and fitment requirements while delivering higher durability and filtration efficiency.

• Approximately 18,000-mile service life versus typical 12,000-mile disposable filters
• Rugged construction for consistent performance over time
• Manufactured to meet or exceed OEM specifications
• Designed for fast, tool-free replacement in the factory air box

Who is this product for? The K&N Advantage Plus KNA-2394 is aimed at owners of compatible Buick, Chevrolet, GMC and Saturn SUVs who want a high-quality, long-life replacement air filter that preserves engine protection without complex installation. It’s well suited to drivers seeking reliable filtration with extended change intervals, maintenance-conscious shoppers preferring OEM-fit parts, and anyone who wants a straightforward swap that restores proper airflow and protection for everyday driving.