Custom Dynamics Genesis 4 LED Turn Signals are a replacement for Harley-Davidson part # 68168-89a. This product is compatible with 1986-2013 Harley-Davidson Electra Glide Classic (FLHTC), Electra Glide Standard (FLHT), Electra Glide Ultra Classic (FLHTCU), Ultra Limited (FLHTK), 1986-2020 Road King (FLHR), Road King Classic (FLHRC), 1986-2017 Heritage Classic (FLSTC) and 1999-2003 Road Glide (FLTR) with Flat Style (2 screw) Turn Signal Lenses and 1157 front dual contact bases. These offer 48 super bright dual color LEDs producing the brightest full white running light (Halo Free) with full amber turn signal on the market. 1157 pigtail bulb base for plug and play front turn signal applications. As required by Federal Motor Vehicle Safety Standard FMVSS108, when turn signal is activated the white DRL turns completely off providing greater visibility to the amber turn signal. Sold as a Pair. Does NOT Fit CVO Models. DOT Compliant when used behind Custom Dynamics smoked or clear motorcycle turn signal lens (sold separately). SMART Signal Stabilizer (sold separately) is required on 2013 & Earlier Sportsters, 2011 & Earlier Dynas, 2010 & Earlier Softails, 2013 & Earlier H-D Touring and H-D Trikes and all V-Rod Models to ensure proper function and flash speed of LED Turn Signals. This product is an aftermarket replacement manufactured by Custom Dynamics to be compatible with certain Harley-Davidson motorcycles.