YA-4503 Image

Replacement Filters > Replacement Air Filter

 List Price: $127.54
Your Price: $86.99

You Save 31.8%

Find a Local K&N Dealer


       

YA-4503
 
In Stock & Ready to Ship!
 Free Ground Shipping!


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

I started racing motorcycles in the early 70's and as a greenhorn learned about K&N filters in the pits. I have K&N air filters on everything but my lawnmower. A restored 1977 RD-400 Yamaha, a 2007 Hummer, a 1999 Chevy p.u., a 1987 Honda ATV, and now my 2004 Polaris. They are the only air filters that I will pay money for.
Larry Koehn, Georgia
I put K&N air filters on everything, a 2007 Hummer, 1999 Chevy P/U, a 1977 Yamaha and a 2004 Polaris ATV and I have used them exclusively since racing motorcycles in the 1970's. They are simply the best that there is. I have started many others on K&N including my oldest grandson. Great product.
Larry Koehn, Georgia
I installed my first K&N filter in 1975 while I was the manager at Small Car Accessories, a high performance VW shop in Sunnyvale CA. At the time I ran these filters on both of my Corvair powered VW's, a '58 Single Cab pickup, which I still drive, and a '71 bug. They worked really well on the street, giving me an extra mile or two per gallon with pretty much 'filter-less' performance, and worked especially well in the shop's sand rail. Other filters would pack it in when running the dunes at Pismo and until the K&N's came along, you carried a couple of extra filters. The K&N's not only kept the sand out, but did well when packed with sand. A quick stop and a quick tap or two and they were ready to go again. Because they flowed air so well and were so easy to clean. We sold a lot of them to our off-roading customers, and they loved them. At the time, RURA racers ran their buggies and Bajas at a track near the old Fremont Drag Strip where they used them for their performance value and reusability. These days I run a K&N filter in my '99 Ranger, where I picked up just over 1 mpg with just the filter change. I still use a K&N in my old Single Cab, which since 1981 has sported a 351 Ford Windsor engine and Ford drive train (over 60,000 miles). My '82 Yamaha 650 Seca still has the K&N air filter I installed at the first filter change over 52,000 miles back. There is also a K&N on my Café style Iron Head Sporty (48,000 miles), my wife's modified 750 Virago (two pod style filters), my '05 Triumph Tiger (added three HP on the dyno) and the '97 GS500 Suzuki I recently saved from the back of a neighbor's yard. I'm taking the time to write this because the K&N filter is a product which is truly as excellent as the manufacture claims. Besides the maximum star rating I also give K&N filter a 'two thumbs up.'
Kim Crumb, Forestville, California