Search  for anything...
K&N

K&N Engine Air Filter: High Performance, Premium, Powersport Air Filter: Fits 2000-2019 SUZUKI/KAWASAKI (DRZ400S, DRZ400SM, DRZ400E, DRZ400, KLX400R, KLX400SR) SU-4000

  • Based on 318 reviews
Condition: New
Checking for the best price...
$57.45 Why this price?
Save $3.38 was $60.83

Buy Now, Pay Later


As low as $9.58 / mo
  • – 6-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Apple Pay, and PayTomorrow. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

Returnable until Jan 31, 2025

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: In Stock.
Fulfilled by Amazon

Arrives Friday, Mar 20
Order within 22 hours and 9 minutes
Available payment plans shown during checkout

Protection Plan Protect Your Purchase
Checking for protection plans...

Style: Air Filter


Features

  • ULTIMATE LONGEVITY: 10-Year/Million Mile Limited Warranty protects for the life of your vehicle
  • ENGINEERED POWER: State-of-the-art air filter media is designed to increase horsepower and acceleration as well as improve overall engine performance
  • EASY INSTALLATION: Pre-oiled and ready to install. One of the easiest and most cost-effective upgrades for your motorcycle or ATV for quick performance gains
  • SAVES MONEY: K&N high-flow replacement air filters will save you $250 over 10 years by avoiding disposable filters
  • ECO-FRIENDLY: Using a washable, reusable product helps reduce replacement waste. A K&N filter will last longer than 10 disposable filters

Description

K&N performance High-Flow Air Filters are engineered to improve engine performance by increasing airflow. Unlike disposable paper filters which must be frequently replaced, K&N Air Filters are washable, reusable, and engineered to last for the life of your motorcycle, ATV, or Side-By-Side vehicle. K&N air filters are backed by our famous 10-Year/Million Mile Limited Warranty, and they provide an environmentally friendly way to reduce landfill waste by avoiding disposable filters. Engineered to fit easily into your factory air box, installation can be completed in a matter of minutes! K&N develops and tests each product on the world’s toughest race tracks, so we can bring the highest level of performance for your journey. Join the millions of customers who have saved money and improved performance by upgrading to K&N filtration. Fitment Information: 2000-2019 SUZUKI DRZ400S; 2005-2019 SUZUKI DRZ400SM; 2000-2018 SUZUKI DRZ400E; 2000-2017 SUZUKI DRZ400; 2003 KAWASAKI KLX400R; 2003 KAWASAKI KLX400SR

Brand: K&N


OEM Part Number: SU-4000


Global Trade Identification Number: 22


Shape: Oblong


Manufacturer: K&N Engineering


Brand: ‎K&N


OEM Part Number: ‎SU-4000


Global Trade Identification Number: ‎22


Shape: ‎Oblong


Manufacturer: ‎K&N Engineering


UPC: ‎172303706771 182682839328 182682221161 024844080622 953040026342


Model: ‎Replacement Air Filter


Item Weight: ‎14.1 ounces


Product Dimensions: ‎3.35 x 3.4 x 1.43 inches


Country of Origin: ‎USA


Item model number: ‎SU-4000


Is Discontinued By Manufacturer: ‎No


Exterior: ‎Other


Manufacturer Part Number: ‎SU-4000


Date First Available: December 23, 2005


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Mar 20

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Fits like a glove DRZ400S
Style: Air Filter
2009 Suzuki DRZ400 with 3x3 mod, jet kit, and larger muffler tip. Flows nicely, fits good, and filters air. Bikes running nicely with these mods Definitely feel a performance bump, but could be a placebo effect 🤔. I’ve had K&N’s on lots of vehicles, and like the reusable factor as much as anything
Reviewed in the United States on July 27, 2024 by Aaron Willits

  • Great performance
Style: Air Filter
What a world of difference from the OEM to K&N air filter. My 2023 DRZ400sm doesn't feel like is suffocating when driving over 45mph and it was Easy to install. If you still have an OEM air filter this is a must upgrade, it's worth every penny, I highly recommend this upgrade you'll notice the difference. ... show more
Reviewed in the United States on October 4, 2023 by El Cuco

  • Drz 400
Style: Air Filter
Love K&N
Reviewed in the United States on October 17, 2024 by Julie

  • Exact Fit for DRZ400sm
Style: Air Filter
quality filter for your drz400sm
Reviewed in the United States on September 12, 2024 by allen demler

  • Great prodact
Style: Air Filter
Great prodact
Reviewed in the United States on July 28, 2024 by Great prodact

  • DRZ400SM iron lung
Style: Air Filter
Air box mod, jetted carburetor, and full exhaust combined with this filter makes the DRZ am entirely new bike
Reviewed in the United States on April 20, 2024 by Michael Robinson

  • works as expected
Style: Air Filter
replaced the foam filter on my 2008 drz400sm, which i only use on the street.
Reviewed in the United States on April 29, 2024 by Fisha lot

  • Doesn't fit properly, bad design.
Style: Air Filter
Flawed design that doesn't seal inside the airbox. It leaves a 1/8" gap in some areas since it doesn't use any type of seal or gasket. And the "sealing grease" is totally useless due to the fact that it moves around so easily and that's after bending the stock metal holder to be tighter. I'd return it in a heartbeat if I didn't already throw the box away. Get a foam filter instead. ... show more
Reviewed in the United States on March 15, 2021 by thomas mocek

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...