Detroit RA4722002001 Variable Speed Water Pump – DD13 DD15 Remanufactured Air Ride Excessive exhaust drone or cabin

Excessive exhaust drone or cabin boom at highway speeds

03 in (203

Freightliner Cascadia (2008+ with DD13/DD15)

Normally closed switch opens at 310 psi and closes at 240 psi for R134a refrigerant

Detroit RA4722002001 Variable Speed Water Pump – DD13 DD15 Remanufactured Air Ride Excessive exhaust drone or cabinDetroit RA4722002001 is a factory remanufactured variable speed (electro viscous) water pump for Detroit Diesel DD13 and DD15 engines, replacing new pump A4722002001 EA4722002001 and superseded variants A4722001601 and A4722000701. The pump uses a viscous clutch between the pulley and impeller drive that the ECM modulates via the impeller speed sensor, reducing parasitic load when full coolant flow isn't required. Ships with the impeller speed sensor