AIR FILTER 08-13 FLHR/FLHT/FLHX/FLTR and H-D Trikes. REPLACEMENT AIR FILTER ELEMENTS. replc. OEM #29633-08. High-quality paper filter medium. Meets or exceeds OEM specifications. For use with OEM stock air filter housings. NOTE: Not for use with Screamin' Eagle air cleaners.. - Part Number - 1011-2957