PAI 853746 Pressure Switch │ Replaces Mack 20489118 Drain Plug This hose replaces or is

This hose replaces or is equivalent to the following part numbers:

Poor fuel economy or sluggish acceleration under load

NAPA: 601050

Stemco: 1S4-234

Stripped or leaking drain plug threads that cannot be re-tapped

PAI 853746 Pressure Switch │ Replaces Mack 20489118 Drain Plug This hose replaces or isThe PAI 853746 is an aftermarket air brake stop lamp low pressure switch for Mack and Volvo on highway tractors. Normally open contacts close at roughly 2 6 psi to power the brake light circuit when service brake air is applied. 2 pin oval connector, 2. 44 in overall. Direct replacement for Mack Volvo 20489118. Signs You Need a New Pressure Switch Brake lights stay on with the pedal released Brake lights fail to illuminate when the service brake is