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Replacement Filters > Replacement Air Filter

 List Price: $127.54
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YA-4503
 
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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
YA-4503 Cross Reference
Installation Instruction Sheet
YA-4503 Vehicle Applications
Air Filter Test Data
News Story - Innovative K&N Air Filter for Yamaha WR250F & WR450F Dirt Bikes Now Available


Part YA-4503 Product Specifications
Product Style: Unique Air Filters
Air Filter Shape: Unique
Filter Material: Cotton Gauze
Flanges: None
Height: 2.875 in (73 mm)
Package Contents: 1 Air Filter, 1 K&N 1oz Sealing Grease
Package Quantity: 1
Filter Re-Oiling Amount: 0.54 oz (16 ml)
Weight: 1.3 lb (0.6 kg)
Product Box Length: 8.5 in (216 mm)
Product Box Width: 8.5 in (216 mm)
Product Box Height: 3.63 in (92 mm)



Customer Feedback      Be the first to review part YA-4503

The KN-204 was the perfect fit for my new Yamaha 2015 FZ-07 750cc. I really like the convenience and high-quality metal of the bolt-head, and the excellent seal of the filter. Thank you so much for anticipating the market!
Anne Lane, Stone Mountain, Georgia
I used the K&N RC-2540 filter as an air filter for my Yamaha Towny scooter. It fits perfect and the chrome end dressed up the bike.
Jay Kreminski, Illinois
I have a fz6r Yamaha and my bike drives so much better because of the new filter. A must buy if you have this bike.
Brandon Smith, Las Vegas, Nevada