MACK 20489118 Air Brake Pressure Switch

Manufacturer

MACK

Product Description

SWITCH

Features & Benefits

• Converts a pneumatic event into an electrical signal that the truck can use
• Gives pressure-based warning functions a clear trigger point
• Adds structure to troubleshooting involving mistimed pressure signals
• Brings more visibility to the connection between air status and system response

Mack Air Brake Pressure Switch

Within the brake system, the Mack Air Brake Pressure Switch gives changing air pressure a way to trigger an electrical response that the truck can recognize. That signal matters in situations where warning functions or related controls depend on pressure reaching a certain point before anything happens at the electrical side. Instead of leaving those events to delayed feedback, this switch helps define the moment a pressure condition should prompt action. Its role becomes more important in air brake systems, where communication between pneumatic and electrical components must remain aligned throughout operation. Along that pressure-to-signal pathway, the Mack 20489118 serves as the switch that helps the system respond at the right time.