K&N Engine Air Filter for 2017-2019 Chevy/GMC V8 Trucks — 24,000-Mile KNX-5065, High Flow

K&N KNX-5065 is a high-flow, extended-life engine air filter engineered to protect V8 engines in 2017–2019 Silverado and Sierra 2500/3500 trucks for up to 24,000 miles between replacements.

Built by K&N, a leader in performance filtration since 1969, this Advantage Plus filter combines durable materials and specially treated media to balance strong airflow with engine protection. It installs in minutes into the factory airbox and is designed to meet or exceed original equipment specifications for fit and function on compatible Chevy and GMC heavy-duty trucks. Compared with conventional disposable filters, the KNX-5065 offers twice the service interval and filtration efficiency suitable for everyday driving and towing loads.

Will this filter fit my 2017–2019 Chevy Silverado or GMC Sierra 2500/3500?

Yes — the KNX-5065 is specified for the 2017–2019 Chevrolet Silverado 2500 HD and 3500 HD and the 2017–2019 GMC Sierra 2500 HD and 3500 HD models with the compatible V8 airbox. It is engineered to match OEM dimensions so it seats cleanly without modification.

• Direct fit for listed 2017–2019 Chevy/GMC heavy-duty V8 trucks
• No trimming or adapters required for compatible factory airboxes
• Designed to meet or exceed OEM sealing and fit standards

How does the KNX-5065 protect my engine while improving airflow?

The KNX-5065 uses specially treated filter media — a synthetic or cellulose blend depending on application — that traps a high percentage of particulates while allowing efficient airflow. K&N reports filtration performance up to 99.5% for engine protection without the excessive restriction associated with some disposable filters.

• Premium treated media balances capture efficiency and low restriction
• Engineered to reduce dirt ingestion while supporting throttle response
• Maintains airflow characteristics that suit heavy-duty towing and hauling

How long will this filter last and how often should it be replaced?

The KNX-5065 is rated for up to 24,000 miles of service under normal highway driving conditions — roughly double the life of many standard 12,000-mile disposable filters. Replacement frequency depends on driving environment: dusty or off-road use will require earlier service intervals than routine highway use.

• Rated service life: up to 24,000 miles under normal conditions
• Replace sooner if you operate in heavy dust, mud, or extreme conditions
• Typical replacement cycle: about two years at average annual mileage

How easy is installation and maintenance?

Installation takes only minutes using the factory airbox — the KNX-5065 is designed for a straightforward swap with the original filter. Because this is a disposable extended-life filter, maintenance consists of periodic replacement rather than cleaning or re-oiling required by some reusable filters.

• Simple drop-in replacement into the factory airbox
• No special tools or modifications needed for compatible trucks
• Replace every recommended interval; no re-oiling required for this model

Who this filter is for: The K&N KNX-5065 suits owners of 2017–2019 Chevrolet Silverado 2500/3500 HD or GMC Sierra 2500/3500 HD who want extended service life, reliable engine protection, and OEM-fit convenience. It’s a practical choice for drivers who tow, haul, or log high highway miles and prefer a longer replacement interval without changing the factory airbox or compromising airflow.