K&N High Flow Air Filter for Harley Davidson Fat Bob/ Street Bob - HD-9608
K&N High Flow Air Filter for Harley Davidson Fat Bob/ Street Bob - HD-9608
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K&N High-Flow Air Filter | Harley-Davidson Dyna Fat Bob & Street Bob (HD-9608)
The HD-9608 is a performance-driven intake upgrade designed specifically for the Dyna family of Harley-Davidsons. This filter is the standard replacement for the 2008–2017 Dyna models that utilize the factory "teardrop" or "football" style air cleaner cover. It is a favorite for riders who want to improve the breathing of their 96ci or 103ci Twin Cam engine without changing the classic look of their bike.
Key Features
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Optimized for Dyna Performance: Engineered to provide up to 50% more airflow than the restrictive factory paper element. This allows the engine to pull air more efficiently, resulting in a noticeable boost in throttle response and mid-range torque.
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Superior Filtration: Features K&N’s signature multi-layered oiled cotton gauze media. It achieves high filtration efficiency (up to 99%) by trapping dirt and grit within the layers of cotton rather than just on the surface.
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Washable & Reusable: A permanent "Lifetime" upgrade. Simply wash, re-oil, and reinstall the filter. Under normal highway conditions, it typically only requires cleaning every 80,000 km (50,000 miles).
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Direct Drop-In Fit: Precision-molded to provide a perfect, airtight seal within the factory Dyna airbox. It is a direct "plug-and-play" replacement for Harley-Davidson OEM part numbers 29191-08 and 29161-08.
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Increased Intake Growl: By removing the paper restriction, you unlock a deeper, more resonant intake "thump" that complements the aggressive character of the Fat Bob and Street Bob.
Technical Specifications
| Feature | Specification |
| Model Code | HD-9608 |
| Brand | K&N |
| Filter Material | Oiled Cotton Gauze |
| Compatibility | Dyna Fat Bob, Street Bob, Super Glide, Wide Glide |
| Year Range | 2008–2017 (Twin Cam Models) |
| Air Filter Shape | Unique (Dyna Specific) |
| Dimensions | 179mm (L) x 121mm (W) x 41mm (H) |
| Warranty | 10-Year / Million Mile Limited Warranty |
Why Choose K&N for your Dyna?
The Dyna chassis is built for a raw, mechanical riding experience. However, the stock intake is heavily baffled to meet noise regulations, which can make the engine feel "lazy" off the line. The HD-9608 "uncorks" the system, providing a sharper throttle snap and more linear power delivery. It is a vital foundation for any "Stage 1" build, pairing exceptionally well with a set of slip-on exhausts and a fuel tuner.
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2016 Harley Davidson FLD Switchback - Non-US 103 CI All Models 2016 Harley Davidson FXDF Fat Bob - Non-US 103 CI All Models |
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2016 Harley Davidson FXDL Dyna Low Rider - Non-US 103 CI All Models 2016 Harley Davidson FXDWG Dyna Wide Glide - Non-US 103 CI All Models |
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2015 Harley Davidson FLD Switchback 103 CI All Models 2015 Harley Davidson FXDL Dyna Low Rider 103 CI All Models |
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2015 Harley Davidson FXDL Low Rider 103 CI All Models 2015 Harley Davidson FXDWG Dyna Wide Glide 103 CI All Models |
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2014 Harley Davidson FLD Switchback 103 CI All Models 2014 Harley Davidson FXDC Super Glide Custom 103 CI All Models |
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2014 Harley Davidson FXDF Fat Bob 103 CI All Models 2014 Harley Davidson FXDL Dyna Low Rider 103 CI All Models |
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2014 Harley Davidson FXDL Low Rider 103 CI All Models 2014 Harley Davidson FXDWG Dyna Wide Glide 103 CI All Models |
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2013 Harley Davidson FLD Switchback 103 CI All Models 2013 Harley Davidson FXDB Street Bob 96 CI All Models |
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2013 Harley Davidson FXDC Super Glide Custom 96 CI All Models 2013 Harley Davidson FXDF Fat Bob 103 CI All Models |
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2013 Harley Davidson FXDWG Dyna Wide Glide 103 CI All Models 2012 Harley Davidson FLD Switchback 103 CI All Models |
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2012 Harley Davidson FXDB Street Bob 96 CI All Models 2012 Harley Davidson FXDC Super Glide Custom 96 CI All Models |
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2012 Harley Davidson FXDF Fat Bob 103 CI All Models 2012 Harley Davidson FXDWG Dyna Wide Glide 103 CI All Models |
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2011 Harley Davidson FXDB Street Bob 96 CI All Models 2011 Harley Davidson FXDC Super Glide Custom 96 CI All Models |
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2011 Harley Davidson FXDF Fat Bob 96 CI All Models 2011 Harley Davidson FXDWG Dyna Wide Glide 96 CI All Models |
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2010 Harley Davidson FXD Dyna Super Glide 96 CI All Models 2010 Harley Davidson FXDB Street Bob 96 CI All Models |
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2010 Harley Davidson FXDC Super Glide Custom 96 CI All Models 2010 Harley Davidson FXDF Fat Bob 96 CI All Models |
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2010 Harley Davidson FXDL Dyna Low Rider 96 CI Japan 2010 Harley Davidson FXDWG Dyna Wide Glide 96 CI All Models |
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2009 Harley Davidson FXD Dyna Super Glide 96 CI All Models 2009 Harley Davidson FXDB Street Bob 96 CI All Models |
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2009 Harley Davidson FXDC Super Glide Custom 96 CI All Models 2009 Harley Davidson FXDF Fat Bob 96 CI All Models |
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2009 Harley Davidson FXDL Dyna Low Rider 96 CI All Models 2008 Harley Davidson FXD Dyna Super Glide 96 CI All Models |
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2008 Harley Davidson FXDB Street Bob 96 CI All Models 2008 Harley Davidson FXDC Super Glide Custom 96 CI All Models |
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2008 Harley Davidson FXDF Fat Bob 96 CI All Models 2008 Harley Davidson FXDL Dyna Low Rider 96 CI All Models |
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2008 Harley Davidson FXDWG Dyna Wide Glide 96 CI All Models |
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