Q27-1038 Genuine Paccar Multi-Purpose Pressure Switch

Product Overview

The Q27-1038 is a genuine Paccar multi-purpose pressure switch specified for Peterbilt truck applications, providing pressure-dependent switching within a compatible vehicle system. This component monitors pressure at its installed location and changes its electrical switching state when pressure falls below a designated threshold, allowing the connected circuit to respond to the detected pressure condition.

Product Features

The Q27-1038 Paccar multi-purpose pressure switch provides a pressure-activated electrical switching function for Peterbilt truck systems, responding to pressure changes at the designated monitoring point.

• Monitors pressure conditions within the connected vehicle system during normal operation
• Changes electrical contact state when pressure drops below the designated threshold
• Provides a discrete switching response rather than continuous pressure measurement data
• Allows the connected control circuit to recognize a low-pressure condition
• Operates through the pressure-sensitive mechanism contained within the switch assembly
• Requires matching pressure threshold and connection specifications for the intended circuit

General Specifications

Installation Notes

The Q27-1038 should be installed after identifying the pressure monitoring location, safely relieving pressure from the applicable system, and examining the original switch connection and mounting interface for damage or contamination. Once the switch is secured and its electrical connection restored, check for leakage where applicable and verify that the connected circuit responds correctly to pressure changes according to the vehicle's service procedures.

Always verify the original switch part number, Peterbilt system application, pressure activation threshold, electrical connection, and mounting interface before installation.