Standard Ignition SLS-79 Brake Light Switch

Brake Light Switch for Ford and Mercury Applications

The Standard Ignition SLS-79 brake light switch is built for dependable stoplamp signal control in a wide range of Ford, Lincoln, and Mercury vehicles. It uses a metal finish, a female connector, and blade terminals to support consistent electrical contact in the brake pedal circuit.

For drivers and technicians servicing a Ford Mustang, Thunderbird, Econoline van, or Mercury Cougar, this SLS-79 brake light switch is a direct replacement style part designed around OE-level switching performance.

Key Features

• Brake light switch with a metal housing and metal finish
• Female connector with 1 connector interface
• 2 male blade terminals for straightforward circuit connection
• Special spring and contact design to reduce arcing
• Copper alloy conductors for strong electrical conductivity and low resistive loss
• 100% tested for mechanical and electrical switching performance
• Built with robust materials for service use

Detailed Description

Standard Ignition SLS-79 is a stoplight switch engineered for reliable brake pedal signal operation. The switch design focuses on stable electrical transfer, durable construction, and consistent actuation under repeated use. Standard Ignition uses brass or high-impact composite housings as specified by application, along with copper alloy conductors and a contact arrangement intended to limit arcing and extend service life. This makes the SLS-79 a practical choice for restoring brake lamp function on vehicles such as the Ford Mustang, Ford Thunderbird, and Mercury Cougar.

This part cross-references Dorman - HELP 58118 for the same application.

What It Helps Fix

• Brake lights that stay off when the pedal is pressed
• Intermittent stoplamp operation
• Delayed or inconsistent brake light activation
• Electrical contact wear at the brake pedal switch
• Faults caused by a worn or failed stoplight switch

Installation Notes and Tips

Verify connector style, terminal layout, and vehicle application before installation. This brake light switch uses a female connector with 2 blade terminals, so matching the existing harness and switch mount is important. Confirm proper pedal adjustment and test brake lamp operation after installation. Fits 1994-1996 Ford E-150 Econoline, 1994-1996 Ford E-150 Econoline Club Wagon, 1994-1996 Ford E-250 Econoline, 1994-1996 Ford E-350 Econoline, 1994-1996 Ford E-350 Econoline Club Wagon, and additional Ford, Lincoln, and Mercury applications listed for the SLS-79.

Quality Assurance

Standard Ignition manufactures this brake light switch with complete quality control from component selection through final production. Each unit is tested to verify mechanical action and electrical switching performance, supporting dependable service in OE-style brake lamp circuits.