When you press the brake pedal, this switch turns on the brake lights. The Standard Ignition SLS-108 brake light switch fits many vehicles, among them the 1994-2004 Ford Mustang, 1986-1989 Ford Taurus and 1984-1994 Ford Tempo, as a direct-fit replacement for the listed applications. It also fits other Ford, Lincoln and Mercury applications shown in the "Vehicles it fits" section. Standard Ignition catalogs this part as a stoplight switch, so you may see it under either name.
- Copper alloy conductors: Built for strong electrical conductivity with low resistive losses through the switch.
- Arc-reducing contacts: A special spring and contact arrangement reduces arcing, which is intended to extend service life.
- 100% tested: Every switch is checked for both mechanical and electrical switching performance.
- Controlled production: Standard Ignition is a global maker of original equipment ignition products. It keeps full quality control over manufacturing, from the individual components to the finished switch, using robust design and high-grade materials built for professional service work.
A switch may need replacing if the brake lights stay on, never come on, or work only some of the time. Bulbs, fuses and wiring can cause the same symptoms, so diagnose the circuit before you replace the part. Whether you need a Tempo switch for the 1984-1994 Ford Tempo or a replacement for another listed model, the "Vehicles it fits" section has the full list of applications.
See the "Vehicles it fits" section for engine details.
Interchange: S646 · 8692 · F4836 · SL219 · E1EB13480AA · E1EB13480BA · E1FZ13480A · E1FZ13480B · E3EB13480AA · E3EB13480BA · E3FZ13480A · E6EB13480AA · E6EB13480BA · E6FZ13480A · E73B13480AA · E73Z13480A · SW2154 · 12326976 · 12329699
Product information is for general reference and may contain errors. See our Disclaimer.
This part cross-references / interchanges with the following part numbers:
S646, 8692, F4836, SL219, E1EB13480AA, E1EB13480BA, E1FZ13480A, E1FZ13480B, E3EB13480AA, E3EB13480BA, E3FZ13480A, E6EB13480AA, E6EB13480BA, E6FZ13480A, E73B13480AA, E73Z13480A, SW2154, 12326976, 12329699
Frequently Asked Questions
What does the SLS-108 brake light switch do?
The brake pedal operates it, and it switches the brake light circuit. The stoplights come on when the pedal is pressed and go off when it is released.
Is this the right Taurus switch for a 1986-1989 Ford Taurus?
Yes, the SLS-108 is listed for the 1986-1989 Ford Taurus. See the "Vehicles it fits" section for engine details on your application.
What are signs a brake light switch may need replacing?
Brake lights that stay on, never come on, or work intermittently can indicate a failing switch. Bulbs, fuses and wiring can cause the same symptoms, so check them first.
How is the SLS-108 tested?
Standard Ignition tests 100% of these switches to verify both their mechanical and electrical switching performance.
What part numbers does the SLS-108 interchange with?
It interchanges with numbers including S646, 8692, F4836, SL219, SW2154, E1EB13480AA and E6FZ13480A. The full list appears on the Interchange line in the description.
