Keep your brake lights firing the moment you squeeze the lever or press the pedal with the Standard Ignition Brake Light Switch MC1904. This switch controls the electrical circuit that signals your brake lamps, so following riders and drivers see you slowing down. It drops in as a direct-fit replacement for the 2005 and 2007 Harley-Davidson FXD Dyna Super Glide, the 2005 and 2007 Harley-Davidson FXDWG Dyna Wide Glide, and the 2004-2007 Harley-Davidson FXST Softail Standard.
- Circuit control: completes the brake-lamp circuit when the brakes are applied and opens it when released.
- Direct-fit replacement: designed to install in place of the original switch on the listed Harley-Davidson applications.
- Serviceable part: if a failed brake light switch is the cause of brake lights that stay off, stay on, or work intermittently, this replaces it.
Signs this switch may need replacing include brake lights that do not illuminate when braking, lights that remain on, or flickering operation — diagnose the cause before replacing, since wiring, connectors, and fuses can produce similar symptoms.
Interchange: MC14013 · 7202351E
Manufacturer part number MC1904
This part cross-references / interchanges with the following part numbers:
Frequently Asked Questions
What does the MC1904 brake light switch do?
It controls the electrical circuit for the brake lamps, closing the circuit to turn the brake lights on when you apply the brakes and opening it when you release them.
Which vehicles does this switch fit?
It is a direct-fit replacement for the 2005 and 2007 Harley-Davidson FXD Dyna Super Glide, the 2005 and 2007 FXDWG Dyna Wide Glide, and the 2004-2007 FXST Softail Standard.
What numbers does the MC1904 interchange with?
It interchanges with MC14013 and 7202351E. Its own manufacturer part number is MC1904.
What are signs this brake light switch may need replacing?
Brake lights that fail to come on when braking, lights that stay on, or intermittent operation. Diagnose the cause first, since wiring, connectors, or fuses can cause similar symptoms.
Will replacing this switch fix my brake lights?
If a failed brake light switch is the cause, replacing it with the MC1904 restores that function. Confirm the switch is at fault before installing, as other electrical parts can produce the same issue.
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