V-Twin Left Side Handlebar Control Module Chrome 78591

Chrome left-side handlebar control module for Harley with an IP66-rated enclosure ensures durable performance in rain, dust, and road debris. The V-Twin 78591 combines weather resistance with a clean, polished look for your bike’s left-hand controls.

The module features a front clutch switch with a 48-inch wire harness and a turn signal wire reserve, providing flexible installation options and easy integration into your motorcycle’s wiring system. Designed for versatile configuration, it can be combined with the switch housing or used standalone to suit your preferred handlebar setup.

This chrome finish adds aesthetic appeal while delivering reliable operation for a confident riding experience. It’s a practical upgrade or replacement for riders seeking a tailored fit and durable performance on their Harley Davidson FLST, FXD, FXST, and XL models from 2012 to 2020 (XL models listed for 2014–2020).

• Part number: 78591
• Finish: Chrome
• Enclosure: IP66-rated for weather resistance
• Includes front clutch switch with 48-inch wire harness
• Turn signal wire reserve for customization
• Can be combined with switch housing or used standalone
• Fitment: Harley Davidson FLST 2012–2020; FXD 2012–2017; FXST 2012–2020; XL 2014–2020

Handlebar control module for the left side features a chrome finish.

Upgrade your Harley Davidson with the V-Twin Left Side Handlebar Control Module Chrome, part number 78591. Designed for a seamless fit on models from 2012 to 2020, including the FLST and FXST series, this module offers durability and style. Constructed of a robust IP66-rated enclosure, it is built to withstand harsh weather conditions and road debris, ensuring long-lasting performance. The module features a front clutch switch with a 48-inch long wire harness, providing flexible installation options and easy integration into your motorcycle's existing wiring system. Additionally, a turn signal wire reserve is included to accommodate various configurations, allowing customization based on your preferences. This side module can be combined or assembled with the switch housing, offering versatility for your handlebar setup. The chrome finish adds a sleek, polished look that complements your motorcycle’s aesthetic, enhancing both function and appearance. Whether you're replacing a faulty component or upgrading for style, this control module ensures reliable operation and easy handling for a confident riding experience. It’s a perfect choice for motorcycle enthusiasts seeking quality, durability, and a tailored fit for their Harley Davidson FLST or FXST models.

Features:

• Constructed of durable IP66-rated module and connector for weather resistance

• Includes front clutch switch with 48-inch wire harness for flexible installation

• Turn signal wire reserve for customization and enhanced functionality

• Can be combined with switch housing or used standalone, depending on preference

• Sleek chrome finish adds aesthetic appeal and style

Fitment
Harley Davidson FLST 2012
Harley Davidson FLST 2013
Harley Davidson FLST 2014
Harley Davidson FLST 2015
Harley Davidson FLST 2016
Harley Davidson FLST 2017
Harley Davidson FLST 2018
Harley Davidson FLST 2019
Harley Davidson FLST 2020
Harley Davidson FXD 2012
Harley Davidson FXD 2013
Harley Davidson FXD 2014
Harley Davidson FXD 2015
Harley Davidson FXD 2016
Harley Davidson FXD 2017
Harley Davidson FXST 2012
Harley Davidson FXST 2013
Harley Davidson FXST 2014
Harley Davidson FXST 2015
Harley Davidson FXST 2016
Harley Davidson FXST 2017
Harley Davidson FXST 2018
Harley Davidson FXST 2019
Harley Davidson FXST 2020
Harley Davidson XL 2014
Harley Davidson XL 2015
Harley Davidson XL 2016
Harley Davidson XL 2017
Harley Davidson XL 2018
Harley Davidson XL 2019
Harley Davidson XL 2020