K&N Engineering SU-4000 Off-Road Replacement Air Filter for Suzuki DR-Z400 and Kawasaki KLX400R

Description

The K&N SU-4000 replacement air filter is specifically designed for off-road motorcycles, including models like the Suzuki DR-Z400 series and Kawasaki KLX400R. Crafted to deliver high airflow and superior filtration, this washable and reusable filter ensures your engine breathes clean air during demanding dirt and dust riding conditions. Its durable construction maintains optimal performance without the need for jet adjustments, making it ideal for extended off-road adventures.

Constructed with multiple layers of woven cotton gauze media, the K&N SU-4000 offers a large filtration surface area for longer service intervals and reliable protection against contaminants. Its application-specific sealing bead guarantees a precise fit into the OEM air box, ensuring maximum efficiency and preventing unfiltered air from bypassing the filter. This filter is pre-oiled and ready to install, saving you time and effort while providing a significant performance boost.

Designed without the need for fuel management modifications, the K&N SU-4000 enhances horsepower and acceleration tailored for off-road, motocross, ATV, UTV, and side-by-side vehicles. Its washable design allows for easy maintenance, reducing ongoing costs and environmental impact. Backed by a one-year limited warranty, this filter is a dependable choice for riders seeking consistent, high-quality filtration and airflow in rugged terrains.

Features:

• Designed to provide increased horsepower and acceleration specifically developed for off-road riding, motocross, ATVs, UTVs, and side-by-sides

• Fits directly into OEM air box with application-specific sealing bead ensuring a precise fit

• Pleated media provides a large filtration area offering long service intervals

• No fuel management modifications required to obtain increased performance

• Multiple layers of woven cotton gauze media offer excellent filtration

• Washable and reusable, most filters are pre-oiled and ready to ride

• One-year limited warranty

Fitment:
Kawasaki KLX400R Base 2003
Kawasaki KLX400SR Base 2003
Suzuki DR-Z400 Base 2000
Suzuki DR-Z400 Base 2001
Suzuki DR-Z400 Base 2002
Suzuki DR-Z400 Base 2003
Suzuki DR-Z400 Base 2004
Suzuki DR-Z400 Base 2005
Suzuki DR-Z400 Base 2006
Suzuki DR-Z400 Base 2007
Suzuki DR-Z400 Base 2008
Suzuki DR-Z400 Base 2009
Suzuki DR-Z400 Base 2010
Suzuki DR-Z400 Base 2011
Suzuki DR-Z400 Base 2012
Suzuki DR-Z400 Base 2013
Suzuki DR-Z400 Base 2014
Suzuki DR-Z400 Base 2015
Suzuki DR-Z400 Base 2016
Suzuki DR-Z400 Base 2017
Suzuki DR-Z400E Base 2000
Suzuki DR-Z400E Base 2001
Suzuki DR-Z400E Base 2002
Suzuki DR-Z400E Base 2003
Suzuki DR-Z400E Base 2004
Suzuki DR-Z400E Base 2005
Suzuki DR-Z400E Base 2006
Suzuki DR-Z400E Base 2007
Suzuki DR-Z400E Base 2008
Suzuki DR-Z400E Base 2009
Suzuki DR-Z400E Base 2010
Suzuki DR-Z400E Base 2011
Suzuki DR-Z400E Base 2012
Suzuki DR-Z400E Base 2013
Suzuki DR-Z400E Base 2014
Suzuki DR-Z400E Base 2015
Suzuki DR-Z400E Base 2016
Suzuki DR-Z400E Base 2017
Suzuki DR-Z400E Base 2018
Suzuki DR-Z400S Base 2000
Suzuki DR-Z400S Base 2001
Suzuki DR-Z400S Base 2002
Suzuki DR-Z400S Base 2003
Suzuki DR-Z400S Base 2004
Suzuki DR-Z400S Base 2005
Suzuki DR-Z400S Base 2006
Suzuki DR-Z400S Base 2007
Suzuki DR-Z400S Base 2008
Suzuki DR-Z400S Base 2009
Suzuki DR-Z400S Base 2010
Suzuki DR-Z400S Base 2011
Suzuki DR-Z400S Base 2012
Suzuki DR-Z400S Base 2013
Suzuki DR-Z400S Base 2014
Suzuki DR-Z400S Base 2015
Suzuki DR-Z400S Base 2016
Suzuki DR-Z400S Base 2017
Suzuki DR-Z400S Base 2018
Suzuki DR-Z400S Base 2019
Suzuki DR-Z400S Base 2020
Suzuki DR-Z400S Base 2021
Suzuki DR-Z400S Base 2022
Suzuki DR-Z400S Base 2023
Suzuki DR-Z400S Base 2024
Suzuki DR-Z400SM Base 2005
Suzuki DR-Z400SM Base 2006
Suzuki DR-Z400SM Base 2007
Suzuki DR-Z400SM Base 2008
Suzuki DR-Z400SM Base 2009
Suzuki DR-Z400SM Base 2010
Suzuki DR-Z400SM Base 2013
Suzuki DR-Z400SM Base 2014
Suzuki DR-Z400SM Base 2015
Suzuki DR-Z400SM Base 2016
Suzuki DR-Z400SM Base 2017
Suzuki DR-Z400SM Base 2018
Suzuki DR-Z400SM Base 2019
Suzuki DR-Z400SM Base 2020
Suzuki DR-Z400SM Base 2021
Suzuki DR-Z400SM Base 2022
Suzuki DR-Z400SM Base 2023
Suzuki DR-Z400SM Base 2024