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Replacement Filters > Replacement Air Filter

 List Price: $78.00
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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
HA-4099 Cross Reference
Installation Instruction Sheet
HA-4099 Vehicle Applications

Part HA-4099 Product Specifications
Product Style: Oval Air Filter
Air Filter Shape: Oval
Height: 4.5 in (114 mm)
Inner Wire: No
Top Style: Metal
Top Material/Finish: Black Oxide
Filter Material: Cotton Gauze
Flange Inside Diameter: 3 in (76 mm)
Flange Length: 1.5 in (38 mm)
Flanges: 1
Package Contents: 1 Air Filter
Package Quantity: 1
Base Outside Diameter: 5.125 in (130 mm)
Filter Re-Oiling Amount: 0.82 oz (24 ml)
Top Outside Diameter: 5.375 in (137 mm)
Weight: 1.4 lb (0.6 kg)
Product Box Length: 6.5 in (165 mm)
Product Box Width: 6.5 in (165 mm)
Product Box Height: 7.25 in (184 mm)

22-8016PK - Air Filter Wrap
99-5050 - Filter Care Service Kit - Squeeze

Customer Feedback      Be the first to review part HA-4099

I recently purchased the K&N drop-in filter for my '13 Honda CR-Z and love it. Before installing the filter I logged my car's performance using Torque, and then again after installing the filter. The difference in performance was not only noticeable within Torque, but I can feel the difference while driving.
Michael, Ohio
The fit was not perfect, it was a little too big but still fit with a little convincing. It really woke my 2000 Honda Shadow VLX600 up. I was really impressed with how much of an improvement it was. I would buy another K&N filter.
David, Latrobe, Pennsylvania
I own a Honda Shadow Spirit 750c2. Easy to install and immediately when I started the motor I could hear my exhaust tone had changed. When I rode it, I felt my power had increased and the transmission was able to wind out longer without straining for the first time ever. Thanks for the excellent air filter.
Joseph Gassaway, California

K&N HA-4099 fits the following:
2014 HONDA TRX400X 400 - All
2013 HONDA TRX400X 400 - All
2012 HONDA TRX400X 400 - All
2009 HONDA TRX400X 400 - All
2008 HONDA TRX400EX 397 - All
2007 HONDA TRX400EX 397 - All
2006 HONDA TRX400EX 397 - All
2005 HONDA TRX400EX 397 - All
2004 HONDA TRX400EX 397 - All
2003 HONDA TRX400EX 397 - All
2002 HONDA TRX400EX 397 - All
2001 HONDA TRX400EX 397 - All
2000 HONDA TRX400EX 397 - All
1999 HONDA TRX400EX 397 - All