K&N TB-9004 High-Flow Air Filter for Triumph Bonneville / Scrambler / Thruxton

Vehicle Fitment

• 2001-2015 Triumph Bonneville 800 / 865
• 2002-2015 Triumph Bonneville T100
• 2006-2017 Triumph Scrambler 865
• 2004-2015 Triumph Thruxton 865 (incl. special/limited editions)

Fitment Notes

• Direct replacement for stock airbox filter; fits original airbox without modifications.

Features

• Pleated cotton gauze media for enhanced airflow and engine breathing
• Washable & reusable - reduces replacement frequency and waste
• Pre-oiled and ready to install out of the box
• Application-specific base seal and sealing bead for a secure, airtight fit
• Large filtration surface area for extended service intervals
• Provides increased horsepower and torque compared to stock paper filter
• Durable, high-quality construction made in USA
• Backed by K&N's Lifetime Limited Warranty

Specifications

• Filter Shape: Oval
• Material: Multi-layer cotton gauze with aluminum mesh backing
• Outside Length: 108 mm (4.25 in)
• Outside Width: 84 mm (3.313 in)
• Height: 171 mm (6.75 in)
• Washable: Yes
• Quantity: 1x air filter
• Position: Intake airbox filter element

Included Components

• 1x K&N TB-9004 High-Flow Air Filter

Product Description

The K&N TB-9004 high-flow air filter is engineered as a direct replacement for stock air filters in a wide range of Triumph motorcycles - including Bonneville, T100, Thruxton, and Scrambler models (2001-2017). With a pleated cotton gauze design and application-specific sealing bead, TB-9004 ensures a precise, leak-free fit in the factory airbox. The increased airflow facilitates better engine breathing, leading to improved throttle response, more consistent power delivery, and potential gains in horsepower and torque compared to standard paper filters.

Because the TB-9004 is washable, reusable, and pre-oiled, it offers riders an economical and environmentally friendly long-term filtration solution. Maintenance is simple: remove, clean, re-oil, and reinstall - no custom tuning or airbox modifications needed. Whether you ride daily or take your bike on longer journeys, this filter is ideal for riders seeking reliable performance, longevity, and a free-flowing air intake upgrade.