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Delphi Cummins 4088665 Reman Fuel Injector – ISX Dual Cam / QSX15 Dual Cam

Thoroughbred Sku #: DELEX638665-CRE


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$636.70

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Product Details

Product Name: Delphi Cummins ISX Diesel Remanufactured Fuel Injector
Manufacturer: Delphi
Manufacturer Part #: EX638665
Thoroughbred Diesel Part #: DELEX638665

Restore proper fuel delivery and engine performance with the Delphi EX638665 Remanufactured Fuel Injector for Cummins ISX diesel engines. Built as a direct-fit replacement, this High Pressure Injection (HPI) injector is engineered to deliver precise fuel atomization, stable combustion, and consistent power output under demanding operating conditions. It helps correct common issues such as rough idle, hard starting, excessive smoke, poor throttle response, and reduced fuel economy. Delphi states each ISX injector is tested for leaks, injection pressure, fuel delivery, and timing, with new matched nozzles and replacement critical wear components for dependable long-term service.

OE Numbers 148-075-8665, 1480758665, 209984X, 4076902, 4088665, 4088665NX, 4088665PX, 4088665R, 4088665RX, 8520, DCI4088665R, DELEX638665, EX638665, FS4088665RX, MCBR-MCB4088665, MCBRMCB4088665, R-4088665, R-MCB4088665, R4088665, RMCB4088665, TDM4088665PX

Delphi Features:

  • Remanufactured fuel injector for Cummins ISX diesel engines
  • Part number EX638665
  • Cross references include 4088665 / 4088665PX / 4088665RX / 4076902
  • High Pressure Injection (HPI) fuel system design
  • Direct-fit OEM-style replacement for proper installation
  • Restores horsepower, torque, and fuel efficiency
  • Improves throttle response and combustion stability
  • Helps reduce smoke, rough idle, and misfire conditions
  • Tested for leaks, timing, fuel delivery, and injection pressure
  • 100% replacement of critical nozzle check valve components
  • 100% O-ring replacement for proper sealing
  • Cost-effective alternative to new OEM injectors
  • For more information on Delphi call us at 1-859-737-4966

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DELEX638665, DELEX638665-CRE, DELDELEX638665