Center Module - Brake Light - Harley Davidson Allows installation of a center brake light on choppers and custom bikes when used with Thunder Heart’s Micro Harness Controller part # 2120-0023, Compatible with LED and incandescent bulbs, Solid-state construction, fully...

Electronic Harness Controller Allows a dual-filament bulb to be used in three ways: tail, brake and turn signal (excluding the need for a center brake light); includes ribbon cable for integrating generic indicator lights, Performs all fuse, relay and signal-canceling...

Engine Control Module with Integral Auto Tune System - M8 Touring ThunderMax ECM with Auto-Tune module mounts conveniently in place of the factory ECM and plugs in to the existing harness, Utilizes wide-band oxygen sensors and works as a closed-loop...

Micro Harness Controller Performs all fuse, relay (includes starter relay) and signal-canceling functions in one simple package, Provides multiple flasher combinations (signal canceling, hazard lights, running lights and turn signal) from one dual-filament bulb, Billet 6061 T-6 aluminum housing and...

Micro Harness Controller Performs all fuse, relay (includes starter relay) and signal-canceling functions in one simple package, Provides multiple flasher combinations (signal canceling, hazard lights, running lights and turn signal) from one dual-filament bulb, Billet 6061 T-6 aluminum housing and...

Oil Cooler Fan - M8 Touring/Trike Uses engine temp and vehicle speed to reduce heat and keep engines running cool, Takes only 15 minutes to install; does not require oil cooler removal, Plug-n-play installation on M8 models equipped with ThunderMax...

Pigtail ECM Harness Handy for motorcycle models with tight clearances around the ECM such as Dyna, Softail Rocker and '02-'05 V-Rod models, Allows a second port for the communication cable connection to the ThunderMax, Made in the USA

Push Button Converter - Harley Davidson Convenient way to wire up push-button hand control switches, Takes momentary signal from a push-button hand control switch and converts it to a standard "latching" signal, Design is fully circuit-protected and has no relays...

Replacement Oxygen Sensor Easy installation: replace the factory ECM, install new O² sensors and harness, load the correct map for your bike, and ride, Replacement oxygen sensor for Thundermax ECM auto tune system, Made in the USA, Because of possible...

ThunderMax Engine Control Module Kit with Integral Auto Tune - '01-'10 Softail/Sportster/Touring Includes ThunderMax ECM with Auto-Tune Module, plug-in harness and two wide-band sensors, TMax software and communication USB cable, Quick-Start Easy Install and Comprehensive User's Manual, technical support and...

ThunderMax Engine Control Module Kit with Integral Auto Tune - '02-'16 V-Rod Includes ThunderMax ECM with Auto-Tune Module, plug-in harness and two wide-band sensors, TMax software and communication USB cable, Quick-Start Easy Install and Comprehensive User's Manual, technical support and...

ThunderMax Engine Control Module Kit with Integral Auto Tune - '04-'13 Dyna/Softail/Sportster Includes ThunderMax ECM with Auto-Tune Module, plug-in harness and two wide-band sensors, TMax software and communication USB cable, Quick-Start Easy Install and Comprehensive User's Manual, technical support and...

ThunderMax Engine Control Module Kit with Integral Auto Tune - '11 Softail Includes ThunderMax ECM with Auto-Tune Module, plug-in harness and two wide-band sensors, TMax software and communication USB cable, Quick-Start Easy Install and Comprehensive User's Manual, technical support and...

ThunderMax Engine Control Module Kit with Integral Auto Tune - '12-'20 Dyna/Softail/Sportster Includes ThunderMax ECM with Auto-Tune Module, plug-in harness and two wide-band sensors, TMax software and communication USB cable, Quick-Start Easy Install and Comprehensive User's Manual, technical support and...

ThunderMax Engine Control Module Kit with Integral Auto Tune - '14-'16 Touring/Trike Includes ThunderMax ECM with Auto-Tune Module, plug-in harness and two wide-band sensors, TMax software and communication USB cable, Quick-Start Easy Install and Comprehensive User's Manual, technical support and...

ThunderMax Engine Control Module Kit with Integral Auto Tune - '14-'17 Softail Includes ThunderMax ECM with Auto-Tune Module, plug-in harness and two wide-band sensors, TMax software and communication USB cable, Quick-Start Easy Install and Comprehensive User's Manual, technical support and...

ThunderMax Engine Control Module Kit with Integral Auto Tune - '21-'24 Softail Includes ThunderMax ECM with Auto-Tune Module, plug-in harness and two wide-band sensors, TMax software and communication USB cable, Quick-Start Easy Install and Comprehensive User's Manual, technical support and...

ThunderMax Engine Control Module Kit with Integral Auto Tune - '21-'24 Touring Includes ThunderMax ECM with Auto-Tune Module, plug-in harness and two wide-band sensors, TMax software and communication USB cable, Quick-Start Easy Install and Comprehensive User's Manual, technical support and...

ThunderMax Engine Control Module Kit with Integral Auto Tune - Touring/Trike/Throttle-by-Wire Includes ThunderMax ECM with Auto-Tune Module, plug-in harness and two wide-band sensors, TMax software and communication USB cable, Quick-Start Easy Install and Comprehensive User's Manual, technical support and free...

Transmission Speedometer Sensor Chrome billet sensor, Includes OEM Deutsch connector, Made in the USA