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K&N TB-9004 Replacement Air Filter

Replacement Filters > Replacement Air Filter
Rating Star 1 Rating Star 2 Rating Star 3 Rating Star 4 Rating Star 5   4.8 out of 5 stars   10 Customer Reviews
  • Designed to provide increased horsepower and torque
  • Pleated media provides a large filtration area offering long service intervals
  • Multiple layers of woven cotton gauze media offers excellent filtration
  • Application specific base seal and sealing bead
  • Made in the USA for over 40 years
  • Washable & reusable, pre-oiled and ready to ride!
  • Million-Mile Limited Warranty
K&N's high-flow air filters are available as a replacement for your stock motorcycle air filter element. They are custom engineered to fit your specific application and are designed to provide low restriction and increased performance, while providing excellent engine protection for your motorcycle.

[More Information on K&N Replacement Air Filters]

Product Specifications

Air Filter ShapeOval
Base Outside Length4.25 in (108 mm)
Base Outside Width3.313 in (84 mm)
Filter MaterialCotton Gauze
Filter Re-Oiling Amount0.49 oz (15 ml)
Height6.75 in (171 mm)
Inner WireNo
Outside Length4.25 in (108 mm)
Outside Width3.313 in (84 mm)
Package Contents1 Air Filter
Package Quantity1
Product Box Height7.25 in (184 mm)
Product Box Length4.63 in (117 mm)
Product Box Width4.63 in (117 mm)
Product StyleOval Air Filter
Top Material/FinishNone
Top Outside Length4.25 in (108 mm)
Top Outside Width3.313 in (84 mm)
Top StyleOpen
Weight1.3 lb (0.6 kg)

K&N TB-9004 Replacement Air Filter Product Reviews

Thursday, June 30, 2016 - Part TB-9004
Sorry due to health and weather I have not had a chance to evaluate the filter. The service was great and shipping was a lot quicker then expected.

Merle Cowan
Tampa, Florida
Monday, May 2, 2016 - Part TB-9004
Easy to install and high quality.

Thursday, April 28, 2016 - Part TB-9004
Item originally out of stock, left details for when stock arrived. Notified of stock arrival, ordered and delivery within days, perfect level of service. Filter fits and works exactly as described. 10 out of 10 , very pleased.

Colin Howard
Derbyshire, United Kingdom
Monday, March 28, 2016 - Part TB-9004
Before, I thought you had to clean and oil the filter ever few hours like I had to on my Beta 4t Trials bike. Your rep said it would not require service for 30000 miles. I know Triumph air filters seem to stay pretty clean and the paper filters from the factory are still clean even after 5000 miles, but 30K miles? Hope he was right. The low restriction filter matches my airbox mods and computer perfectly.

J. Parker
Debary, Florida
Tuesday, November 17, 2015 - Part TB-9004
Great product Easy upgrade.

Simi Valley, California
Monday, May 25, 2015 - Part TB-9004
I have always used K/N filters in my race bikes and road bikes.They do make a difference you can feel in the seat of your leathers.Great service too.

Ken Allaman
Tuesday, March 10, 2015 - Part TB-9004
I love K&N air filters. I run them in all my motorcycles.

Robert Bird
Eden, Utah