Series 1:Air cleaners in Series 1 fit XL Sportster 2004-2022;
Series 2:Air cleaners in Series 2 fit for Dyna 2000-2017, Softail 2000-2015, Touring 2000-2007;
Series 3:Air cleaners in Series 3 fit for Softail 2016-2017, Touring/Trike 2008-2016, Dyna FXDLS 2017, FLSTNSE 2014-2015, FLSTSE 2011-2012, FXSBSE 2013-2014;
Series 4:Air cleaners in Series 4 fit for M8 Softail 2018-2024, M8 Touring 2017-2023, M8 Trike 2017-2025, FLHRXS 2024-2025, FLTRK 2024, Ultra Limited 2024;