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Replacement Filters > Replacement Air Filter

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K&N off-road replacement air filters are ideal for extended use in dirty and dusty off-road riding and provide clean carburetion even at high altitude. Generally, no jet changes are required with just a K&N filter element. K&N replacement air filters are washable and reusable and provide high air-flow with excellent filtration.
Available Information
YA-4092 Cross Reference
Installation Instruction Sheet
Air Filter Test Data
YA-4092 Vehicle Applications

Part YA-4092 Product Specifications
Product Style: Rectangular Air Filter
Height: 2.688 in (68 mm)
Outside Length: 5 in (127 mm)
Outside Width: 4.875 in (124 mm)
Air Filter Shape: Rectangular
Filter Material: Cotton Gauze
Flange Angle: N/A
Flange Inside Diameter: N/A
Flange Length: N/A
Flanges: None
Package Contents: 1 Air Filter
Package Quantity: 1
Filter Re-Oiling Amount: 0.26 oz (8 ml)
Inner Wire: No
Top Material/Finish: None
Top Style: Rubber
Weight: 0.71 lb (0.32 kg)
Product Box Length: 6.5 in (165 mm)
Product Box Width: 3.63 in (92 mm)
Product Box Height: 6.63 in (168 mm)

99-5050 - Filter Care Service Kit - Squeeze

Customer Feedback      Be the first to review part YA-4092

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
Great product as are most of K&N products. It made my bike run and sound better. The air intake is much more effective now. My '09 Yamaha FZ6 is a missile! Couldn´t be happier with such a great quality product! Thanks for taking such good care of your customers K&N!
Vinicius Segantini, Natal, Brazil
From where I can get this product for my Yamaha R15 v2. I'm crazy about ths filter.
Lovi, Moga, Punjab

K&N YA-4092 fits the following:
2008 YAMAHA SR400 400 - All
2007 YAMAHA SR400 400 - All
2006 YAMAHA SR400 400 - All
2005 YAMAHA SR400 400 - All
2004 YAMAHA SR400 400 - All
2003 YAMAHA SR400 400 - All
2002 YAMAHA SR400 400 - All
2001 YAMAHA SR400 400 - All
2000 YAMAHA SR400 400 - All
1999 YAMAHA SR400 400 - All
1998 YAMAHA SR400 400 - All
1997 YAMAHA SR400 400 - All
1996 YAMAHA SR400 400 - All
1995 YAMAHA SR400 400 - All
1994 YAMAHA SR400 400 - All
1993 YAMAHA SR400 400 - All
1992 YAMAHA SR400 400 - All