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Heavy-Duty

Durability For Tough Environments

The tough environment of diesel trucks requires an equally tough filter which is why K&N® designed heavy-duty diesel air filters to meet the demands of rigorous use. Featuring deeper pleats and larger sizes to increase contaminant-catching surface area, K&N air filters for diesel trucks offer increased performance, exceptional protection, and terrific durability. The washable and reusable design can be used for the entire life of your vehicle, saving you money over disposable filters!

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Heavy-Duty Diesel Air Intake Systems

Guaranteed to Increase Horsepower & Torque

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K&N Heavy-Duty Diesel Air Intake System
Reusable High-Flow Air Filter™

Multiple layers of microscopic cotton gauze fibers keeps dirt out of your engine.

Vehicle Specific Heat Shield

Keeps air entering the engine cooler than hot engine compartment air leading to more efficient combustion.

Custom Designed Tube

Allows for more direct airflow into engine.

Custom Mass Air Flow Sensor Adapter

Where applicable.

Reinforced Silicone & Stainless-Steel Hardware

For a stock-like fit added protection.


Heavy-Duty Air Filters

Lower Restriction & Improve Horsepower

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K&N Heavy-Duty Air Filters
Commercial Grade Construction

Built tough with extra strength and reinforcement to ensure they will keep going for up to 300,000 miles.

Easy To Clean and Reuse

After applying K&N degreaser use pressure washers, compressed air, or water hose nozzles to clean our dirt and grime.

Hybrid Filtration Medium

Non-woven synthetic material designed to be used dry with no oil required.


Heavy-Duty Cabin Air Filters

The New “New Truck Smell”

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Capture Contaminants

Electrostatically charged to capture most mold, mildew, pollen, spores, fungi, dust, germs, and other contaminants

Washable and Reusable

K&N cabin air filters are washable, reusable, and engineered to last for the life of your vehicle.

Helps Control Odors

K&N washable cabin filters are specially treated to help capture contaminants that cause odors.


Heavy-Duty Oil Filters

Outstanding Oil Filtration

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K&N Heavy-Duty Oil Filters for Diesel Trucks
Heavy-Duty Construction for Extreme Conditions

Specially designed for the high compression levels and tighter tolerances of turbo diesel engines.

Wrench-Off® Design

A durable one-inch nut is welded to the top of the canister for easy removal.


Heavy-Duty Diesel Fuel Filters

Quality Fuel Filtration, First-Rate Durability

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K&N Heavy-Duty Fuel Filters for Diesel Trucks
Heavy-Duty Construction

High-strength carbon steel housing (where applicable).

Protect Your Engine

Capable of handling high GPH fuel rates.

Direct Replacement

Designed to fit directly into the factory location.