K&N High Flow Air Filter for Suzuki Intruder M1800R/ Boulevard M109R - SU-1806
K&N High Flow Air Filter for Suzuki Intruder M1800R/ Boulevard M109R - SU-1806
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K&N High-Flow Air Filter | Suzuki Intruder M1800R / Boulevard M109R (SU-1806)
Unleash the massive torque of your V-twin cruiser with the SU-1806. Designed specifically for the high-displacement Intruder M1800R and Boulevard M109R, this filter is engineered to provide the high air volume that an 1800cc engine demands.
Important Note: These motorcycles feature a dual-intake system. To replace both factory filters, you will need to purchase two (2) SU-1806 filters.
Key Features
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Maximum Breathing for Big Twins: Designed to provide up to 50% more airflow than traditional paper filters, allowing the massive 112-cubic-inch engine to breathe more freely and deliver smoother power.
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Superior Filtration: Features K&N’s signature multi-layered oiled cotton gauze media, providing excellent engine protection against dust and debris—crucial for maintaining a large-displacement engine.
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Washable & Reusable: A permanent "Lifetime" performance upgrade. Simply wash, re-oil, and reinstall whenever they get dirty, eliminating the cost of expensive OEM replacements.
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Direct Drop-In Fit: Precision-engineered to fit into the stock chrome air cleaner housings perfectly. No modifications to the housings are required.
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Fueling Friendly: Works seamlessly with the stock fuel injection system, though it is the perfect foundation if you plan on adding a fuel controller or aftermarket exhaust later.
Technical Specifications
| Feature | Specification |
| Model Code | SU-1806 |
| Brand | K&N |
| Filter Material | High-Flow Oiled Cotton Media |
| Compatibility | Suzuki M1800R Intruder / M109R Boulevard (All years) |
| Quantity Required | 2 Filters (One for each side) |
| Warranty | 10-Year / Million Mile Limited Warranty |
Why Choose K&N for your M109R/M1800R?
The Suzuki 1800cc V-twin is a powerhouse that moves a tremendous amount of air. Restrictive stock paper filters can "strangle" the engine, especially during hard acceleration. The SU-1806 ensures that air velocity remains high, resulting in a crisper throttle response and a more authoritative intake roar. It’s one of the most popular functional upgrades for M109R owners who want to combine performance with the classic K&N "Million Mile" reliability.
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2024 Suzuki M109R Boulevard 1783 All Models 2023 Suzuki M109R Boulevard BOSS 1783 All Models |
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2022 Suzuki M109R Boulevard BOSS 1783 All Models 2021 Suzuki M109R Boulevard BOSS 1783 All Models |
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2020 Suzuki M109R Boulevard BOSS 1783 All Models 2019 Suzuki M109R Boulevard 1783 All Models |
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2019 Suzuki M109R Boulevard BOSS 1783 All Models 2018 Suzuki M109R Boulevard 1783 All Models |
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2018 Suzuki M109R Boulevard BOSS 1783 All Models 2017 Suzuki M109R Boulevard 1783 All Models |
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2017 Suzuki M109R Boulevard BOSS 1783 All Models 2016 Suzuki M109R Boulevard 1783 All Models |
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2016 Suzuki M109R Boulevard BOSS 1783 All Models 2015 Suzuki M109R Boulevard 1783 All Models |
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2015 Suzuki M109R Boulevard BOSS 1783 All Models 2014 Suzuki M109R Boulevard 1783 All Models |
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2014 Suzuki M109R Boulevard BOSS 1783 All Models 2014 Suzuki M109RZ Boulevard Ltd 1783 All Models |
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2013 Suzuki M109R Boulevard 1783 All Models 2013 Suzuki M109RZ Boulevard Ltd 1783 All Models |
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2012 Suzuki M109R Boulevard 1783 All Models 2012 Suzuki M109RZ Boulevard Ltd 1783 All Models |
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2012 Suzuki VLR1800 C1800R Intruder 1800 OEM 1378048G00 2011 Suzuki M109R Boulevard 1783 All Models |
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2011 Suzuki M109RZ Boulevard Ltd 1783 All Models 2011 Suzuki VLR1800 C1800R Intruder 1800 OEM 1378048G00 |
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2011 Suzuki VLR1800 C1800RT Intruder 1800 OEM 1378048G00 2010 Suzuki VLR1800 C1800R Intruder 1800 OEM 1378048G00 |
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2010 Suzuki VZR1800 Intruder 1800 All Models 2009 Suzuki M109R Boulevard 1783 All Models |
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2009 Suzuki M109R2 Boulevard 1783 All Models 2009 Suzuki M109RZ Boulevard Ltd 1783 All Models |
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2009 Suzuki VLR1800 C1800R Intruder 1800 OEM 1378048G00 2009 Suzuki VLR1800 C1800RT Intruder 1800 OEM 1378048G00 |
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2009 Suzuki VZR1800 Intruder 1800 All Models 2008 Suzuki M109R Boulevard 1783 All Models |
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2008 Suzuki M109R2 Boulevard 1783 All Models 2008 Suzuki M109RZ Boulevard Ltd 1783 All Models |
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2008 Suzuki VLR1800 C1800R Intruder 1800 OEM 1378048G00 2008 Suzuki VZR1800 Intruder 1800 All Models |
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2007 Suzuki M109R Boulevard 1783 All Models 2007 Suzuki M109RZ Boulevard Ltd 1783 All Models |
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2007 Suzuki VZR1800 Intruder 1800 All Models 2006 Suzuki M109R Boulevard 1783 All Models |
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2006 Suzuki VZR1800 Intruder 1800 All Models |
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