K&N Engine Air Filter for 2017–2019 Chevy/GMC 6.6L V8 Trucks — Extended Life 24,000-Mile Direct-Fit

The K&N KNX-5065 is a high-flow, long-life engine air filter engineered to deliver up to 24,000 miles of use while protecting 2017–2019 Chevrolet and GMC 2500/3500 V8 trucks.

Built by K&N, the KNX-5065 replaces the factory air filter with a premium, specially treated filter media that balances airflow and particle capture. Designed to meet or exceed OEM specifications, this direct-fit unit installs in the stock airbox in minutes and offers a service interval twice as long as many disposable filters—helping minimize maintenance while maintaining engine protection.

How does this filter protect my 2017–2019 Chevy/GMC 6.6L V8?

The KNX-5065 uses a treated synthetic/cellulose blend (depending on application) that traps fine contaminants without severely restricting airflow. Laboratory and in-vehicle testing show it provides up to 99.5% engine protection for typical road particulates.

• Specially treated media captures dust and debris while preserving airflow
• Engineered to meet or exceed OEM filtration standards
• Direct replacement fit for 2017–2019 Silverado 2500/3500 and Sierra 2500/3500

Will this change performance or fuel economy?

The KNX-5065 is designed to maintain or improve airflow compared with standard disposable filters, which can help throttle response and overall engine breathing. Any performance differences are application-dependent; the filter provides balanced airflow without compromising protection.

• Low-restriction design supports efficient engine breathing
• Helps preserve factory-calibrated engine behavior—no tuning required
• May assist consistent performance under normal driving conditions

How long will the KNX-5065 last and how often should I change it?

This K&N Advantage Plus filter is rated for up to 24,000 miles of service under typical highway driving. Under harsher, dusty, or off-road conditions inspect and replace more frequently; under normal mixed driving the 24k interval equates to about two years for average mileage drivers.

• Standard replacement interval: 24,000 miles under normal highway use
• Inspect earlier in dusty or severe environments; follow vehicle service schedule
• Designed for long life without the recurring cost of frequent disposables

Is installation difficult and will it fit my truck?

The KNX-5065 is a direct-fit factory replacement for the specified model years and installs in the stock airbox in minutes with basic hand tools. No modifications, sealing rings, or adapters are required—simply remove the old filter, seat the K&N unit, and reassemble the airbox.

• Direct-fit for 2017–2019 Chevrolet Silverado 2500/3500 HD and GMC Sierra 2500/3500 HD
• Installs in minutes using the factory airbox location and mounting points
• Meets or exceeds OEM fit and function requirements

Who this is for: The K&N KNX-5065 is aimed at owners of 2017–2019 Chevrolet Silverado 2500/3500 HD or GMC Sierra 2500/3500 HD trucks who want a longer-lasting, performance-minded replacement air filter. Choose this filter if you prefer fewer filter changes, want OEM-level fitment, and value a balance of strong particle protection with sustained airflow for heavy-duty V8 applications.

Specifications: Direct-fit engine air filter, K&N Advantage Plus series, up to 24,000-mile life rating, up to 99.5% filtration efficiency, compatible with 2017–2019 Chevy/GMC 2500/3500 HD 6.6L V8 applications.