Description
Genuine Detroit Diesel OEM EA4722002001 is the variable-speed (electro-viscous) water pump assembly for DD13 and DD15 engines. The pump is engine-driven through an electronically controlled viscous clutch (9V / 3.8A solenoid) that varies coolant flow with engine load and temperature, replacing prior fixed-flow Detroit water pumps and superseding EA4722001601 / EA4722000701. Aluminum housing, supplied as a complete pump assembly with pulley and bracket.
Signs You Need a New Water Pump
- Rising coolant temperature or frequent overheats under load
- Coolant leak from the water pump weep hole or housing-to-block seal
- Grinding, whining, or rumble from the front of the engine traced to the pump bearing
- Low coolant warnings or air repeatedly working into the cooling system
- Fault codes for water pump speed sensor or coolant flow / temperature implausible
Specifications
| Manufacturer | Detroit Diesel (Genuine OEM) |
|---|---|
| Part Number | EA4722002001 |
| Part Type | Variable-Speed (Electro-Viscous) Water Pump Assembly |
| Engine Compatibility | Detroit DD13, DD15 (EPA10 and later) |
| Drive | Engine-driven via electronically controlled viscous clutch |
| Solenoid Voltage | 9 V |
| Solenoid Current | 3.8 A |
| Housing Material | Aluminum |
| Condition | New (no core charge) |
Cross References
This water pump replaces or is equivalent to the following part numbers:
- Detroit Diesel: EA4722002001, A4722002001, 4722002001, EA4722001601, A4722001601, 4722001601, EA4722000701, A4722000701, 4722000701, EA4722001801, EA4722001901, EA4722002701
- Detroit Diesel (related supersession): EA4712001101, EA4712000901, EA4712001601, A4712001101, A4712000901, A4712001601
- Detroit Diesel (DDE prefix): DDE EA4722002001, DDE EA4712000901, DDE EA4712001101, DDE A4712000901
- Detroit Diesel (Reman): RA4722002001, RA4722000701, RA4722001601
- Alliant Power: AP63509 (new electro-viscous)
Applications
This water pump fits the following Detroit engines:
- Detroit DD13 12.8L (2008–present)
- Detroit DD15 14.8L (2008–present)
Representative vehicles using these engines:
- Freightliner Cascadia (2008–2022)
- Freightliner Coronado, Columbia, Century with DD13/DD15
- Western Star 5700XE (2016–2022)
- Western Star 4900, 5800 with DD13/DD15
Verify your engine serial number and water pump configuration before ordering — Detroit DD13/DD15 water pumps were superseded multiple times across model years, and earlier fixed-flow pumps are not interchangeable with the variable-speed assembly.
