Custom Dynamics Auto-Cancel Turn Signal Module for 1973-1991 Harley-Davidson Sportster FX FL
Older Harley-Davidson models and custom builds without self-cancelling turn signals get the convenience of automatic cancellation – plus 4-way hazard flashers – without replacing the switchgear or adding external controls. The hardwire connection integrates into the existing turn signal circuit, leaving the cockpit unchanged while modernizing one of the most-overlooked aspects of early motorcycle electrical systems.
Key Features
- Converts turn signals to self-cancelling with three selectable auto-cancel modes
- Adds 4-way hazard flasher capability to motorcycles without factory hazard function
- Compatible with momentary and latching turn signal switch designs
- Works with LED and incandescent bulbs – no additional load equalization required
- Posi-Tap and Posi-Lock solderless quick-connect connectors included for installation
- Lifetime warranty from Custom Dynamics
Technical Specifications
- Auto-Cancel Modes: 3 (selectable by duration of initial switch press)
- Maximum Load: 5A per channel, 10A total per module
- Dimensions: 2.1″ x 1.4″ x 0.4″
- Bulb Compatibility: LED and incandescent
- Connectors Included: Posi-Tap and Posi-Lock quick-connect
- Warranty: Lifetime
Fitment Notes
- Fits 1973-1991 Harley-Davidson Sportster, 1973-1989 FX, and 1973-1986 FL models; also compatible with any custom motorcycle using a 12V system with momentary or latching turn signals
- Hardwire installation – module connects to battery terminals with input/output connections on left and right turn signal wires; not a plug-and-play installation
- Posi-Tap and Posi-Lock solderless connectors are included; refer to the included installation instructions for wiring details
- Also available for Harley-Davidson models with 8-position, 10-position, and 12-position factory connectors (sold separately)
- Review the Fitment tab for complete year and model compatibility details
