Mack 20489116 Parking Brake Pressure Switch Replacement Idler Pulley Part Number Description 20968839 Filler

Part Number Description 20968839 Filler Cap 21314359 Pressure Cap 20900982 Coolant Sensor 20915849 Clamp

Manufacturer Power Products Part Number 20821-8-8P Part Type Reusable Hose End Fitting (DOT) End 1 1/2 in (#8) Female SAE 45° Flare Swivel End 2 1/2 in (#8) Reusable Hose Shell Hose Compatibility SAE J1402 air brake hose

Sterling Acterra with Cat C7

Volvo 85133799

Mack 20489116 Parking Brake Pressure Switch Replacement Idler Pulley Part Number Description 20968839 FillerReplacement parking brake low pressure switch for Mack and Volvo trucks (OEM 20489116). The 2 pin circular connector switch trips between 12 and 25 PSI to drive the dash parking brake warning lamp and the related ECU strategy when air pressure is low a common service item on Mack Volvo air systems. PAI Industries 854032 is the verified aftermarket equivalent and fits the same multi application footprint. Signs You Need a New Parking Brake Pressure