745-287624
Stop Lamp Switch
Mack

The stop lamp switch is the electrical sensor that triggers brake lights when the pedal is engaged, providing critical feedback to following drivers and aiding in crash avoidance. A robust design accommodates pedal travel, tolerates engine bay contamination, and resists moisture ingress to ensure reliable signaling across a broad operating temperature range. Quality contacts and secure mounting help maintain consistent brightness and ensure compliance with safety standards. Proper adjustment is essential to avoid premature signaling or delayed activation during stop events. Replacement should consider connector compatibility, switch travel, and the required brake-light circuit configuration to avoid nuisance faults. When installed correctly, the switch contributes to safer towing and highway operation by delivering timely visual cues to other motorists. Source One Parts Center.