K&N Engine Air Filter Extended Life 24,000 Mile Replacement - Truck V8

Our review of the K&N Engine Air Filter (Extended Life 24,000 Mile) finds it best suited for owners of 2017-2019 Chevy and GMC heavy-duty V8 pickups who want a low-maintenance, long-life replacement that improves airflow. The bottom line: this filter is intended for drivers who value durable construction and longer service intervals, offering up to 2x the life of many standard disposable filters while providing strong engine protection. Installation is simple and the filter drops into the factory air box, making it an easy upgrade for routine maintenance.

Key Features

• 24,000 mile life: The extended service interval reduces the frequency of replacements to about every two years for average drivers, saving time and waste.
• Rugged construction: Built from premium materials to withstand heavy-duty use and maintain filtration performance over the extended life span.
• Up to 99.5% protection: The specially-treated filter media captures fine particles to protect the engine from wear and contaminants.
• Improved airflow: The treated media is engineered to allow better airflow to the engine, which can support slightly improved throttle response and highway efficiency.
• OEM fit: Designed to meet or exceed factory specifications so it installs easily into the stock air box on compatible Chevy and GMC V8 trucks.

Who It's For

This filter is ideal for owners of 2017-2019 Chevy Silverado 2500/3500 and GMC Sierra 2500/3500 trucks who prefer a durable, longer-life filter that requires less frequent replacement and can tolerate highway and mixed driving without extra maintenance. It fits drivers who appreciate the combination of engine protection and improved airflow for towing, hauling, or regular highway commuting.

Those who frequently drive off-road in extremely dusty conditions or who change filters very often for racing or motorsport applications should consider a service schedule with more frequent inspection or a different filter designed specifically for severe dust environments. Also, anyone needing a disposable 12k-style filter for shorter service intervals should look elsewhere.

Pros & Cons

Pros

• Extended 24,000 mile life cuts replacement frequency and reduces waste.
• Durable, premium materials hold up under heavy-duty truck use.
• High filtration efficiency provides up to 99.5% engine protection.
• Improved airflow often yields noticeable responsiveness and some highway mileage gains.

Cons

• Not a specialized choice for extreme off-road dust where more frequent servicing may be needed.
• Some buyers may expect larger immediate performance gains than the incremental improvements reported.

Specifications

Our Verdict

The K&N 24,000 Mile Engine Air Filter is a solid choice for heavy-duty Chevy and GMC V8 truck owners who want a low-maintenance replacement that balances strong engine protection with improved airflow. Its long service life and durable build make it good value for drivers who perform routine highway and towing duties, while those in extreme dusty conditions should plan for more frequent checks.

Frequently Asked Questions

How often should this filter be replaced?
Replace every 24,000 miles under normal highway driving conditions, roughly every two years for average use.

Will it fit my 2018 Silverado 3500?
Yes, this replacement is designed for 2017-2019 Chevy/GMC 2500 and 3500 V8 trucks including the Silverado and Sierra models listed.

Does it improve fuel economy?
Customers report slight improvements in highway fuel mileage due to improved airflow, though gains are generally modest and depend on driving conditions.