K&N HA-4099 Replacement Air Filter — Fits 1999-2014 Honda TRX400EX Sportrax / TRX400X

SKU: KNNHA-4099
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Sale price$79.99
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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

About K&N Engineering

K&N has been the world's leader in washable, reusable performance air filters since 1969. From the legendary cone filter to complete cold-air intake systems, K&N's cotton-gauze element delivers more airflow than paper while staying serviceable for the life of the vehicle.

Watch in action

Unleash Performance with K&N HA-4099 Air Filter for Honda TRX400EX/X

Upgrade your Honda TRX400EX Sportrax or TRX400X with the K&N HA-4099 Replacement Air Filter, designed to deliver superior airflow and filtration for demanding off-road conditions. This high-performance air filter is engineered to provide clean carburetion, even in dusty environments, ensuring your ATV runs efficiently at all altitudes. Unlike disposable filters, the K&N HA-4099 is washable and reusable, offering a cost-effective and environmentally friendly solution for your filtration needs.

Key Features & Benefits:

  • Increased Airflow: K&N's advanced design provides a significant increase in air intake, leading to improved horsepower and torque.
  • Excellent Filtration: Multi-layered cotton gauze media traps contaminants effectively, protecting your engine from harmful particles.
  • Washable & Reusable: Easily cleaned and re-oiled, extending the life of the filter and saving you money on replacements.
  • No Jetting Required: Generally, no carburetor jet changes are needed with just a K&N filter element, simplifying installation.
  • Durable Construction: Built to withstand the rigors of off-road riding, ensuring long-lasting performance.
  • Direct Replacement: Designed for a perfect fit in your 1999-2014 Honda TRX400EX Sportrax or TRX400X.

Experience the K&N advantage with enhanced engine performance and protection. Get your HA-4099 filter today at GGCRACING.

Vehicle Fitment

Years Make Model Trim
1999-2008 Honda TRX400EX Sportrax Base
2009 Honda TRX400X Base
2012-2014 Honda TRX400X Base

Product Details

Product Description
Part Numbers
Sizing & Fit

About K&N Engineering

K&N has been the world's leader in washable, reusable performance air filters since 1969. From the legendary cone filter to complete cold-air intake systems, K&N's cotton-gauze element delivers more airflow than paper while staying serviceable for the life of the vehicle.

Watch in action

Unleash Performance with K&N HA-4099 Air Filter for Honda TRX400EX/X

Upgrade your Honda TRX400EX Sportrax or TRX400X with the K&N HA-4099 Replacement Air Filter, designed to deliver superior airflow and filtration for demanding off-road conditions. This high-performance air filter is engineered to provide clean carburetion, even in dusty environments, ensuring your ATV runs efficiently at all altitudes. Unlike disposable filters, the K&N HA-4099 is washable and reusable, offering a cost-effective and environmentally friendly solution for your filtration needs.

Key Features & Benefits:

  • Increased Airflow: K&N's advanced design provides a significant increase in air intake, leading to improved horsepower and torque.
  • Excellent Filtration: Multi-layered cotton gauze media traps contaminants effectively, protecting your engine from harmful particles.
  • Washable & Reusable: Easily cleaned and re-oiled, extending the life of the filter and saving you money on replacements.
  • No Jetting Required: Generally, no carburetor jet changes are needed with just a K&N filter element, simplifying installation.
  • Durable Construction: Built to withstand the rigors of off-road riding, ensuring long-lasting performance.
  • Direct Replacement: Designed for a perfect fit in your 1999-2014 Honda TRX400EX Sportrax or TRX400X.

Experience the K&N advantage with enhanced engine performance and protection. Get your HA-4099 filter today at GGCRACING.

Vehicle Fitment

Years Make Model Trim
1999-2008 Honda TRX400EX Sportrax Base
2009 Honda TRX400X Base
2012-2014 Honda TRX400X Base

Product Details

Product Description

About K&N Engineering

K&N has been the world's leader in washable, reusable performance air filters since 1969. From the legendary cone filter to complete cold-air intake systems, K&N's cotton-gauze element delivers more airflow than paper while staying serviceable for the life of the vehicle.

Watch in action

Unleash Performance with K&N HA-4099 Air Filter for Honda TRX400EX/X

Upgrade your Honda TRX400EX Sportrax or TRX400X with the K&N HA-4099 Replacement Air Filter, designed to deliver superior airflow and filtration for demanding off-road conditions. This high-performance air filter is engineered to provide clean carburetion, even in dusty environments, ensuring your ATV runs efficiently at all altitudes. Unlike disposable filters, the K&N HA-4099 is washable and reusable, offering a cost-effective and environmentally friendly solution for your filtration needs.

Key Features & Benefits:

  • Increased Airflow: K&N's advanced design provides a significant increase in air intake, leading to improved horsepower and torque.
  • Excellent Filtration: Multi-layered cotton gauze media traps contaminants effectively, protecting your engine from harmful particles.
  • Washable & Reusable: Easily cleaned and re-oiled, extending the life of the filter and saving you money on replacements.
  • No Jetting Required: Generally, no carburetor jet changes are needed with just a K&N filter element, simplifying installation.
  • Durable Construction: Built to withstand the rigors of off-road riding, ensuring long-lasting performance.
  • Direct Replacement: Designed for a perfect fit in your 1999-2014 Honda TRX400EX Sportrax or TRX400X.

Experience the K&N advantage with enhanced engine performance and protection. Get your HA-4099 filter today at GGCRACING.

Vehicle Fitment

Years Make Model Trim
1999-2008 Honda TRX400EX Sportrax Base
2009 Honda TRX400X Base
2012-2014 Honda TRX400X Base

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