The Twin Air Air Filter, manufacturer part number 154008 and vendor part number 715-4008, is a high-performance replacement air filter designed for select KTM and Husqvarna 50cc motorcycles. Its thick, flat foam sealing ring provides maximum contact with the airbox while functioning as a breathable gasket to support efficient air passage. The filter is slightly smaller than the original equipment filter to promote increased air space and improved circulation around the filter.
Designed for reliable off-road filtration, this Twin Air filter uses a dual-layer, open-pore foam construction. The coarse outer foam captures airborne dirt, grime, and sand, while the fine inner foam provides a second stage of filtration for smaller particles. This design helps protect the engine from damaging contaminants without unnecessarily restricting airflow.
The exclusively formulated adhesive is engineered to withstand repeated cleaning, including cleaning with harsh solvents or gasoline. This makes the filter suitable for regular maintenance and demanding riding conditions. The greaseless sealing ring simplifies installation and helps maintain a secure seal between the filter and airbox.
Fitment: Fits 2009–2017 KTM 50 SX models and the 2017 Husqvarna TC 50. Confirm the motorcycle model and year before installation to ensure proper fitment. Twin Air part number 154008 is a direct replacement-style filter for the listed applications.
Features:
- Dual-layer open-pore foam construction captures both large and fine airborne contaminants
- Thick, flat greaseless sealing ring provides maximum contact with the airbox
- Breathable gasket design supports increased air passage
- Smaller-than-stock profile improves air space and circulation around the filter
- Adhesive withstands repeated cleaning with harsh solvents or gasoline
- Fits 2009–2017 KTM 50 SX and 2017 Husqvarna TC 50 models
Fitment:
2009 KTM 50 SX
2010 KTM 50 SX
2011 KTM 50 SX
2012 KTM 50 SX
2013 KTM 50 SX
2014 KTM 50 SX
2015 KTM 50 SX
2016 KTM 50 SX
2017 Husqvarna TC 50
2017 KTM 50 SX
2018 Husqvarna TC 50
2018 KTM 50 SX
2019 Husqvarna TC 50
2019 KTM 50 SX
2020 Husqvarna TC 50
2020 KTM 50 SX
2021 Gas-Gas MC 50
2021 Husqvarna TC 50
2021 KTM 50 SX
2022 Gas-Gas MC 50
2022 Husqvarna TC 50
2022 KTM 50 SX
2023 Gas-Gas MC 50
2023 Husqvarna TC 50
2023 KTM 50 SX