Partsam 4x For 1999-2010 Ford F350 F450 F550 LED Side Fender Marker Dually Bed Lights Amber 4 piece side marker dually bed light with Amber LED lights for front -- Smoked Lens For 1999-2010 Ford Side Marker Fender Marker Dually Bed; Powered by 3 pieces super bright Flux LED lights inside For 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 Ford F350 F450 F550 Supper Duty Come with 168 194 adapter and double sided tape for easy installation, replace Part # 8C3Z15442B F81Z15442CA Fit 1999-2010 Ford F350 or F450 with existing amber/red lens side markers, but this product will also fit any other truck with some mods and wiring required Dimension: about 60 x 38.5 x 19.5 mm; Note :If the LED does not light up, simply flip it 180 degrees (reverse the polarity) or If the Fender Markers don't fit your stock sockets, please cut the connectors off for wiring.