Standard Ignition SLS-127 Brake Light Switch

Brake Light Switch for Volvo and BMW

Restore reliable brake lamp operation with the Standard Ignition SLS-127 brake light switch. This 12-volt, screw-in switch uses a round male connector with blade terminals for a direct electrical connection on supported Volvo and BMW applications.

Fits 1975-1994 Volvo and BMW applications, including Volvo 240, 740, 760, 780, 745, 940, 960, DL, and GLE, plus BMW 320i, 325e, 325i, 325is, 325iX, 318i, 524td, 528e, 528i, 533i, 535i, 635CSi, 735i, M3, M5, and M6.

• Standard Ignition SLS-127 brake light switch
• 12-volt electrical switch for brake lamp circuit operation
• Screw-in attachment method with hex nut included
• Male connector and male terminal layout
• Plastic housing with one round connector and blade terminals
• Fits select Volvo and BMW models from 1975-1994

Detailed Product Information

The Standard Ignition SLS-127 is a brake light switch used to signal the brake lamp circuit when the pedal is applied. It features two terminals, one connector, and a screw-in mounting style, making it a practical replacement for vehicles that use this configuration. This part number is commonly searched as SLS-127 for Volvo 240, Volvo 740, and BMW 325i brake light switch replacement needs.

This part cross-references 18-1710 and 1307605 for the same application.

Common Problems This Part Can Help Solve

• Brake lights that stay off when the pedal is pressed
• Intermittent brake lamp operation
• Brake lamps that remain on after pedal release
• Faulty brake switch signal to the lighting circuit
• Replacement needs for worn screw-in switch contacts

Installation Notes and Tips

Verify connector style, terminal count, and mounting type before installation. This SLS-127 uses a male connector, male blade terminals, and a round connector shape, so it should be matched to the original switch configuration on the vehicle. Confirm the brake pedal switch location and adjust or tighten the hex nut as required during installation.

Quality Assurance

Standard Ignition supplies electrical replacement parts for service applications, and this brake light switch is built to match the specified 12-volt, screw-in design used on supported Volvo and BMW vehicles. Confirm fitment by year, make, model, and connector style before ordering.