K&N SU-4002 High-Flow Air Filter 2003-2012 Suzuki Kawasaki Arctic Cat

Breathe Better, Ride Harder: The Ultimate High-Flow ATV Performance Upgrade

Stop letting a clogged, restrictive paper filter rob your machine of its true potential. The K&N SU-4002 is a premium OE Replacement High-Flow Air Filter specifically engineered to maximize airflow and boost horsepower for your quad. Whether you are racing through the Florida scrub or hitting the local trails, Moto-House MX knows that Racing Performance starts with a clean intake, and this drop-in upgrade delivers the "daylight-bright" airflow your engine craves.

Constructed with multiple layers of oil-treated cotton gauze filter media, this filter provides a massive surface area for superior filtration in Heavy Duty off-road conditions. The application-specific sealing bead ensures a precision OEM replacement fit within your factory airbox, preventing dust bypass without requiring any fuel-management modifications. Made in the USA and designed to be washable and reusable, the SU-4002 is the last air filter your ATV will ever need.

Top Features: K&N SU-4002 High-Flow Air Filter

• Increased Horsepower: Designed to provide high airflow and enhanced acceleration for better throttle response.
• Precision Sealing Bead: Features an application-specific base to ensure a perfect, airtight seal in the OEM airbox.
• Washable & Reusable: Environmentally friendly cotton gauze can be cleaned and re-oiled for a lifetime of use.
• No Re-Jetting Required: Engineered to provide increased performance while remaining compatible with stock fuel settings.
• Pre-Oiled & Ready: Comes factory-oiled and ready to install right out of the box for immediate riding.

Fitment List

Year Range	Vehicle Brand	Vehicle Model & Size
2003-2012	Suzuki	LT-Z400 QuadSport Z
2003-2006	Kawasaki	KFX400
2004-2008	Arctic Cat	DVX 400

Frequently Asked Questions

Is this filter a direct replacement for the stock paper filter?
Yes, the SU-4002 is designed as a direct "drop-in" replacement for the OEM air filter and fits perfectly into the original factory airbox.

Do I need to change my carburetor jets to use this filter?
In most cases, no. This K&N filter is designed to increase airflow while staying within the tolerances of stock fuel management.

How do I clean this filter?
Simply use a K&N Air Filter Cleaning Kit to wash away dirt and debris, let it dry, and apply a fresh coat of K&N filter oil to restore it to peak performance.

Upgrade Your Quad and experience the K&N difference today at Moto-House MX.

Moto-House MX – Choice of Champions – is located in Clermont/Montverde, FL. The best motocross shop in Central Florida.