Description
Remanufactured EUI fuel injector supplied as PAI 609905X exchange unit for Detroit Diesel Series 60 12.7L engines, replacing OEM R5237045 / 5237045. Each unit is rebuilt with calibrated flow, leak-down, and timing testing to restore OEM-equivalent atomization on DDEC IV electronics.
Signs You Need a New Series 60 Fuel Injector
- Rough idle, misfires, or single-cylinder cutout
- Excessive black smoke or visible loss of power
- Decreased fuel economy
- Hard starting or extended cranking
- Injector-balance / cylinder-contribution faults in the ECM
Specifications
| Manufacturer | PAI Industries |
|---|---|
| Part Number | 609905X |
| Part Type | Electronic Unit Injector (EUI) |
| Engine Compatibility | Detroit Diesel Series 60 12.7L |
| Electronics | DDEC IV |
| Condition | Remanufactured (exchange) |
| Country of Origin | U.S.A. |
Cross References
This part replaces or is equivalent to the following part numbers:
- Detroit Diesel: R5237045, 5237045, RB5237045, EX637045
- Interstate-McBee: M-5237045
- Freightliner: DDER5237045
- PAI Industries: 609905X
Applications
This injector fits the following engines:
- Detroit Diesel Series 60 12.7L (DDEC IV, ~1999-2002)
Representative vehicles using these engines:
- Freightliner FLD120 / Century / Classic (Series 60 12.7L)
- Sterling A-Line / L-Line (Series 60 12.7L)
- Western Star 4900 / 5900 (Series 60 12.7L)
Core charge applies. Verify engine serial number, DDEC version, and original injector part number before ordering.
