OE Quality
60-Day Returns

Standard Ignition SLS-239 Brake Light Switch
Reliable Brake Light Switch for Ford, Lincoln, and Mercury Vehicles
The Standard Ignition SLS-239 brake light switch is designed to provide consistent and accurate brake light activation for select Ford, Lincoln, and Mercury models. Engineered with durable metal and plastic components, this switch ensures reliable performance in your Aviator, Explorer, Mountaineer, Sable, or Taurus.
- Durable metal and plastic finish for long-lasting use
- Dual connector gender design: female and male connectors
- Two connectors and two blade-type terminals for secure electrical connections
- Designed specifically for brake light switch function
- Compatible with Ford Aviator, Explorer, Mercury Mountaineer, Lincoln Sable, and Taurus models
Product Details and Specifications
The Standard Ignition SLS-239 brake light switch features a metal and plastic finish that withstands the rigors of automotive environments. It includes two blade-type terminals with both female and male terminal genders, ensuring a secure and reliable connection within the vehicle's electrical system. The switch is equipped with two connectors, also featuring both female and male genders, facilitating straightforward installation and compatibility with the vehicle's wiring harness. This part is engineered to activate the brake lights precisely when the brake pedal is engaged, maintaining safety and compliance with vehicle standards.
Compatible Vehicles and Applications
This brake light switch is compatible with a range of Ford, Lincoln, and Mercury vehicles, including the Ford Aviator, Ford Explorer, Mercury Mountaineer, Lincoln Sable, and Ford Taurus. The SLS-239 part number ensures you receive the correct switch designed for these specific models, supporting proper brake light operation and vehicle safety.
Common Issues Addressed by the Brake Light Switch
- Brake lights not illuminating when the pedal is pressed
- Intermittent or flickering brake light operation
- Brake lights remaining on continuously
- Failure of cruise control disengagement linked to brake switch
- Electrical connection problems due to worn or damaged terminals
Installation Notes and Tips
When installing the Standard Ignition SLS-239 brake light switch, ensure the vehicle is turned off and the battery is disconnected to prevent electrical shorts. Verify the connector genders and terminal types match the vehicle’s wiring harness before installation. Proper alignment of the switch with the brake pedal arm is critical for accurate brake light activation. Consult the vehicle’s service manual for specific installation torque specifications and adjustment procedures.
Quality Assurance and Warranty Information
Standard Ignition parts are manufactured to meet or exceed OEM specifications, providing reliable performance and durability. The SLS-239 brake light switch undergoes rigorous quality control testing to ensure consistent operation. Warranty coverage details are available through Standard Ignition and typically include protection against defects in materials and workmanship for a specified period.
| Brand | Standard Ignition |
| Part Number | SLS-239 |
| Color | Metal |
| Connector Gender | Female + Male |
| Finish | Metal, Plastic |
| Functions | Switch |
| Terminal Gender | Female + Male |
| Terminal Type | Blade |
This part fits 29 vehicles. Search below:
| Year | Make | Model | Body Type | # Doors | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|---|
| 2007 | Ford | Taurus | N/A | |||||
| 2006 | Ford | Taurus | N/A | |||||
| 2005 | Ford | Taurus | N/A | |||||
| 2005 | Mercury | Sable | N/A | |||||
| 2004 | Ford | Explorer | N/A | |||||
| 2004 | Ford | Taurus | N/A | |||||
| 2004 | Lincoln | Aviator | 4.6L | V8 | N/A | |||
| 2004 | Mercury | Mountaineer | N/A | |||||
| 2004 | Mercury | Sable | N/A | |||||
| 2003 | Ford | Explorer | 4 Door | N/A | ||||
| 2003 | Ford | Taurus | N/A | |||||
| 2003 | Lincoln | Aviator | 4.6L | V8 | N/A | |||
| 2003 | Mercury | Mountaineer | N/A | |||||
| 2003 | Mercury | Sable | N/A | |||||
| 2002 | Ford | Explorer | 4 Door | N/A | ||||
| 2002 | Ford | Taurus | N/A | |||||
| 2002 | Mercury | Mountaineer | N/A | |||||
| 2002 | Mercury | Sable | N/A | |||||
| 2001 | Ford | Explorer | 4 Door | N/A | ||||
| 2001 | Ford | Taurus | N/A | |||||
| 2001 | Mercury | Mountaineer | N/A | |||||
| 2001 | Mercury | Sable | Wagon | N/A | ||||
| 2000 | Ford | Explorer | N/A | |||||
| 2000 | Ford | Sable | 3.0L | V6 | N/A | |||
| 2000 | Ford | Taurus | N/A | |||||
| 2000 | Mercury | Mountaineer | N/A | |||||
| 2000 | Mercury | Sable | Wagon | N/A | ||||
| 1999 | Ford | Explorer | N/A | From 3/2/99 | ||||
| 1999 | Mercury | Mountaineer | N/A | From 3/3/99 |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.