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This enhances safety by making the truck more visible in low-light conditions
Used on Mack®
Notes: 5 terminal
Fits Freightliner M2 models from 2005 to 2016
simple 3-wire hookup with
Pressure Switch (PSI) – 110 a 135 pounds This enhances safety by makingThe Hadley H13940S Air Horn Compressor Pressure Switch is a control device designed to turn an air compressor ON and OFF automatically based on the air pressure in the tank. As a compressor pressure switch, its standard electrical configuration is Normally Closed (NC) when the air pressure is low (or zero). Here's how it works: Low Pressure (e. g., below 110 PSI): The switch is CLOSED, completing the electrical circuit, and the air compressor runs to
