Pressure Switch Mack and Volvo Multiple Application Normally Opens at 2-6 psi
- Part number: 853746
- OE MFG: MACK
- OEM Reference: 20489118
- Cross Reference: MACK : 20489118; VOLVO : 20489118
- Product Class: Air Switches
The PAI 853746 is a pressure switch for multiple Mack and Volvo applications, with Mack OEM reference 20489118. As heavy duty diesel truck parts, pressure switches monitor system pressure and change electrical state at a defined threshold; this component normally opens at 2â6 psi, a useful specification for matching the required switching range. Volvo also references 20489118 for this pressure switch.








