K&N High Flow Air Filter for Triumph Bonneville T100/ Scrambler/ Thruxton 865 - TB-9004
K&N High Flow Air Filter for Triumph Bonneville T100/ Scrambler/ Thruxton 865 - TB-9004
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K&N High-Flow Air Filter | Triumph Bonneville 800/865, Scrambler & Thruxton (TB-9004)
The TB-9004 is the quintessential performance upgrade for the air-cooled (and early EFI) generation of Triumph’s modern classics. Designed for the 790cc and 865cc parallel-twin engines, this filter replaces the restrictive factory paper element to help your "Bonnie," Scrambler, or Thruxton breathe with the soul and efficiency it was meant to have.
Key Features
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Classic Parallel-Twin Performance: Engineered to provide up to 50% more airflow than standard paper filters, improving throttle response and smoothing out the powerband on both carbureted and EFI models.
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Proven Engine Protection: Features K&N’s signature multi-layered oiled cotton gauze media, designed to trap up to 99% of harmful contaminants—keeping your classic engine internals safe for the long haul.
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Washable & Reusable: A permanent "Lifetime" upgrade. Simply wash, re-oil, and reinstall the TB-9004 during your regular service intervals. It is designed to be the last air filter you’ll ever buy for your Triumph.
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Direct Drop-In Fit: Precision-molded to fit the original airbox perfectly. It’s a simple DIY installation that requires no mechanical modifications.
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No Tuning Required: Designed to work seamlessly with factory settings. It provides a great foundation if you later decide to "uncork" the bike further with aftermarket exhausts or re-jetting/re-mapping.
Technical Specifications
| Feature | Specification |
| Model Code | TB-9004 |
| Brand | K&N |
| Filter Material | High-Flow Oiled Cotton Media |
| Compatibility | Bonneville 800/865 (2001–2015), T100 (2002–2015) |
| Also Fits | Scrambler 865 (2006–2017), Thruxton 865/900 (2004–2016) |
| Air Filter Shape | Oval |
| Dimensions | 108mm (L) x 84mm (W) x 171mm (H) |
| Warranty | 10-Year / Million Mile Limited Warranty |
Why Choose K&N for your 865cc Triumph?
The 865cc parallel-twin is a "breathing-limited" engine from the factory, often restricted to meet noise and emissions standards. The TB-9004 is one of the most popular "first mods" for owners because it allows the engine to pull more cleanly, especially in the mid-range. It also yields a slightly deeper, more authentic intake "thrum" that complements the vintage aesthetic of these iconic motorcycles.
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2017 Triumph Scrambler 865 All Models 2016 Triumph Scrambler 865 All Models |
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2016 Triumph Thruxton 865 All Models 2015 Triumph Bonneville 865 All Models |
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2015 Triumph Bonneville T100 865 All Models 2015 Triumph Bonneville T100 Black 865 All Models |
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2015 Triumph Scrambler 865 All Models 2015 Triumph Thruxton 865 All Models |
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2015 Triumph Thruxton Ace SE 865 All Models 2014 Triumph Bonneville 865 All Models |
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2014 Triumph Bonneville Newchurch SE 865 All Models 2014 Triumph Bonneville T100 865 All Models |
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2014 Triumph Bonneville T100 Black 865 All Models 2014 Triumph Scrambler 865 All Models |
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2014 Triumph Thruxton 865 All Models 2013 Triumph Bonneville 865 All Models |
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2013 Triumph Bonneville SE 865 All Models 2013 Triumph Bonneville T100 865 All Models |
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2013 Triumph Scrambler 865 All Models 2013 Triumph Thruxton 865 All Models |
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2012 Triumph Bonneville 865 All Models 2012 Triumph Bonneville SE 865 All Models |
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2012 Triumph Bonneville Steve McQueen SE 865 All Models 2012 Triumph Bonneville T100 865 All Models |
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2012 Triumph Bonneville T100 110th Anniversary LE 865 All Models 2012 Triumph Scrambler 865 All Models |
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2012 Triumph Thruxton 865 All Models 2011 Triumph Bonneville 865 All Models |
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2011 Triumph Bonneville SE 865 All Models 2011 Triumph Bonneville T100 865 All Models |
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2011 Triumph Bonneville T100 Jet Black 865 All Models 2011 Triumph Scrambler 865 All Models |
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2011 Triumph Thruxton 865 All Models 2011 Triumph Thruxton SE 865 All Models |
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2010 Triumph Bonneville 865 All Models 2010 Triumph Bonneville SE 865 All Models |
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2010 Triumph Bonneville T100 865 All Models 2010 Triumph Scrambler 865 All Models |
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2010 Triumph Thruxton 865 All Models 2009 Triumph Bonneville 865 All Models |
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2009 Triumph Bonneville SE 865 All Models 2009 Triumph Bonneville T100 865 All Models |
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2009 Triumph Scrambler 865 All Models 2009 Triumph Thruxton 865 All Models |
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2008 Triumph Bonneville 865 All Models 2008 Triumph Bonneville T100 865 All Models |
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2008 Triumph Scrambler 865 All Models 2008 Triumph Thruxton 865 All Models |
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2007 Triumph Bonneville 865 All Models 2007 Triumph Bonneville T100 865 All Models |
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2007 Triumph Scrambler 865 All Models 2007 Triumph Thruxton 865 All Models |
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2006 Triumph Bonneville 865 All Models 2006 Triumph Bonneville T100 865 All Models |
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2006 Triumph Scrambler 865 All Models 2006 Triumph Thruxton 865 All Models |
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2005 Triumph Bonneville 800 All Models 2005 Triumph Bonneville T100 865 All Models |
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2005 Triumph Thruxton 865 All Models 2004 Triumph Bonneville 800 All Models |
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2004 Triumph Bonneville T100 800 All Models 2004 Triumph Thruxton 865 All Models |
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2003 Triumph Bonneville 800 All Models 2003 Triumph Bonneville T100 800 All Models |
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2002 Triumph Bonneville 800 All Models 2002 Triumph Bonneville T100 800 All Models |
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2001 Triumph Bonneville 800 All Models |
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