HomeElectrical, Lighting and Body > SwitchesStandard Ignition SLS-126 Brake Light Switch
Part #: SLS-126

Standard Ignition SLS-126 Brake Light Switch

⚙️ 33 vehicles fit this part
🔍
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$27.13Free Shipping
🚚Free ShippingNo Cost to Continental U.S.
🔄Free Returns*Wrong fit? No cost
🛡️60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
🔥
✅ In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Audi, 100, 100 Quattro, 80, 80 Quattro, 90, 90 Quattro, 5000, 5000 Quattro, 4000, 4000 Quattro, Coupe, and Quattro
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Reliable Brake Light Switch for Audi 80, 90, 100, and Quattro Models

The Standard Ignition SLS-126 brake light switch is designed to provide consistent and accurate brake light activation for select Audi vehicles. Engineered to meet OEM specifications, this switch ensures proper signaling to enhance vehicle safety and compliance.

Key Features of the Standard Ignition SLS-126 Brake Light Switch

  • Compatible with Audi 80, 80 Quattro, 90, 90 Quattro, 100, 100 Quattro, 4000, 4000 Quattro, 5000 Quattro, and Coupe Quattro models
  • 12-volt electrical rating suitable for standard automotive systems
  • Push-in attachment method for straightforward installation
  • Two terminals with male blade terminal type and one female rectangular connector
  • Durable plastic construction for reliable performance
  • Activation style: switch, ensuring precise brake light engagement

Detailed Description of the SLS-126 Brake Light Switch

The Standard Ignition SLS-126 brake light switch is a critical component in the brake light circuit of various Audi models, including the 80, 90, 100 series, and their Quattro variants. Featuring a push-in attachment method, this switch is designed for easy replacement without the need for additional mounting brackets or hardware. The switch includes two terminals: a male blade terminal and a female rectangular connector, facilitating secure electrical connections. Operating at 12 volts, it integrates seamlessly with the vehicle's existing electrical system. The plastic housing provides durability while maintaining a lightweight profile. This brake light switch activates the brake lights promptly when the brake pedal is pressed, ensuring that following drivers receive timely signals.

Common Applications and Issues Addressed

  • Restores brake light functionality on Audi 80, 90, 100, and Quattro models
  • Resolves intermittent or non-functioning brake lights caused by faulty switches
  • Eliminates brake light flickering or delayed activation
  • Addresses electrical connection issues due to worn or damaged terminals
  • Supports compliance with vehicle safety regulations by ensuring brake light operation

Installation Notes and Tips

  • Ensure the vehicle ignition is off before beginning installation
  • Locate the existing brake light switch near the brake pedal assembly
  • Disconnect the wiring harness carefully to avoid damage to the female rectangular connector
  • Push the new switch into place using the push-in attachment method until securely seated
  • Verify proper brake light operation before completing the installation

Quality Assurance and Warranty Information

Standard Ignition parts are manufactured to meet or exceed OEM standards, providing reliable performance and durability. The SLS-126 brake light switch undergoes rigorous quality control to ensure consistent operation. While specific warranty details may vary, Standard Ignition typically offers coverage against defects in materials and workmanship. Consult product documentation or the manufacturer for exact warranty terms.

BrandStandard Ignition
Part NumberSLS-126
Connector GenderFemale
Terminal GenderMale
Terminal TypeBlade Terminals

This part fits 33 vehicles. Search below:

YearMakeModelPositionNotes
1989Audi100N/A
1989Audi100 QuattroN/A
1989Audi80N/A
1989Audi80 QuattroN/A
1989Audi90N/A
1989Audi90 QuattroN/A
1988Audi5000 QuattroN/A
1988Audi80N/A
1988Audi80 QuattroN/A
1988Audi90N/A
1988Audi90 QuattroN/A
1987Audi4000N/A
1987Audi4000 QuattroN/A
1987Audi5000 QuattroN/A
1987AudiCoupeN/A
1986Audi4000N/A
1986Audi4000 QuattroN/A
1986Audi5000 QuattroN/A
1986AudiCoupeN/A
1985Audi4000N/A
1985Audi4000 QuattroN/A
1985AudiCoupeN/A
1985AudiQuattroN/A
1984Audi4000N/A
1984Audi4000 QuattroN/A
1984AudiCoupeN/A
1984AudiQuattroN/A
1983Audi4000N/A
1983AudiCoupeN/A
1983AudiQuattroN/A
1982Audi4000N/A
1982AudiCoupeN/A
1981AudiCoupeN/A

* 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:

18-1913190211631S5747201-115553-54581811945513811945513AEG622JA437S6002SL325

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.