Trusted by Riders for Nearly 25 Years.
Delivering premium lighting designed for maximum performance, simple installation, and years of dependable riding.
Trusted by Riders for Nearly 25 Years.
Delivering premium lighting designed for maximum performance, simple installation, and years of dependable riding.
Select your ride! Suggested fitment for U.S. models only.
GEN-4-AW-1157-T
Fitment for U.S. models only, unless otherwise noted.
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Custom Dynamics® Genesis® 4 LED Turn Signals offer 48 super bright dual color LEDs on a black circuit board producing the brightest full 6000k white run 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.
Plug & Play on 1986-2013 Harley-Davidson® Electra Glide Classic (FLHTC), Electra Glide Standard (FLHT), Ultra Classic (FLHTCU), Ultra Limited (FLHTK), 1986-2022 Road King (FLHR), Road King Classic (FLHRC), 1986-2017 Heritage Classic (FLSTC) and 1999-2003 Road Glide (FLTR) with front 1157 dual contact bases and OEM Flat Style (2-screw) lens.
Also fits 1986-2001 Harley-Davidson® FXS, FXL, FXD, FXR, FDWG, and XL with stock OEM Old Bullet Style turn signals lenses (sold separately) with 2 screws and 1157 dual contact bases.
Genesis® 4 Bullet Style Motorcycle LED Turn Signals available for models with pop-off style turn signal lenses. Does not fit International (HDI) or 2016-Current 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 Sportster, 2011-Earlier Dyna, 2010-Earlier Softail, 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.
Warning: Cancer & Reproductive Harm — www.p65warnings.ca.gov
1986-2013 Harley-Davidson® Electra Glide Classic (FLHTC), Electra Glide Standard (FLHT), Ultra Classic (FLHTCU), Ultra Limited (FLHTK), 1986-2022 Road King (FLHR), Road King Classic (FLHRC), 1986-2017 Heritage Classic (FLSTC) and 1999-2003 Road Glide (FLTR) with front 1157 dual contact bases and OEM Flat Style (2-screw) lens.
Also fits 1986-2001 Harley-Davidson® FXS, FXL, FXD, FXR, FDWG, and XL with stock OEM Old Bullet Style turn signals lenses with 2 screws and 1157 dual contact bases.
Does not fit International (HDI) Harley-Davison® Motorcycles or 2016-Current CVO™ models.
SMART Signal Stabilizer™ (sold separately) is required on 2013-Earlier Sportster, 2011-Earlier Dyna, 2010-Earlier Softail, 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.

| Type | Year | Make | Model |
|---|
Perfect fit and works great
Great product 👌
Too easy. Excellent product. Huge upgrade from stock. Awesome quality.
Have used Custom Dynamics products on my Harley for years.
Wanted to make my Lotus Elan more conspicuous, so chose this product as DRLs/indicators behind clear lens. Absolutely fabulous.
Installed on 2017 RK: plug-n-play install, with a nice bright white light facing forward. The bright white matches/compliments LED headlight and accessory lighting. When activated, the indicators are much brighter then stock bulbs, helping me to be seen. VERY happy with Genesis 4 LEDs!!
Install on a 12 Heritage. Extra lights equals extra safety. Simple and easy install. Product does exactly what it’s designed to do.
installed these on my 2020 road king, went with genesis 4 because im not a fan of the halo on lights, these solid white and amber version is for me and very happy with it, very very bright. plug and play !!!
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