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K&N HA-4509XD Be the first to review!
Replacement Filters > Replacement Air Filter

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HA-4509XD
 
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K&N XStream Series Motocross Air Filters take performance to the next level with the addition of a filter within the filter's top in order to add even more filtration area for high air-flow and capacity. Each filter piece has pleated media which creates a large surface area that provides high airflow and great dirt holding capacity for extreme conditions. The two-piece design eases installation and removal on modern narrow-framed MX bikes. The epoxy-coated aluminum wire mesh, incorporated into a backfire screen, protects the filter element from harmful debris. A custom base seal ensures a precise and secure fit. K&N air filters are washable and re-usable and they come pre-oiled and ready to use!

More Info on K&N Xstream Series Performance Motocross Air Filters
  • Large surface area for long service life
  • Low restriction
  • Washable and reusable
  • Outstanding filtration
Available Information
HA-4509XD Cross Reference
Installation Instruction Sheet
HA-4509XD Vehicle Applications
Video Installation Video
News Story - K&N Extreme Duty Air Filters Provide Protection and Performance in High Dust Areas


Part HA-4509XD Product Specifications
Product Style: Unique Air Filters
Air Filter Shape: Round Tapered
Filter Material: Cotton Gauze
Flanges: None
Height: 4.5 in (114 mm)
Package Contents: 1 Air Filter
Package Quantity: 1
Weight: 1.5 lb (0.7 kg)
Product Box Length: 9 in (229 mm)
Product Box Width: 4.63 in (117 mm)
Product Box Height: 9 in (229 mm)



Customer Feedback      Be the first to review part HA-4509XD

After all the issues I hear online about K&N, I thought I should just try one out for myself and see what's the real truth.  I noticed a difference right after installation. It seemed to really help out in the low mid range I changed it out from my foam filter after riding for about 30min so I really did notice it once installed.

Thank you!

Blake Weaver

Blake Weaver, California
I installed this filter on my Honda dio 110...I'm getting mileage of 56 km b4 I was getting 45 kms and the sound is awesome.....just open the throttle. ..it willl pull like turbo charged car.
Ullapool Ramu, India
As always, K&N filters are awesome!! This filter was purchased for my new 2013 Honda Rancher - more power, easy clean up, & easy install. I run K&N filters on ALL of my vehicles: 04 Silverado 2500HD, 2003 S-10 ZR5, 1994 Jeep Wrangler YJ & now the Honda. Thank you K&N for a great product! The shipping was fast & free.
Scott Spencer, Saginaw, Michigan