4954679NX Genuine Cummins Fuel Injector Set For XPI 8.9L ISC ISL EPA07

Description

The 4954679NX is a genuine Cummins fuel injector set designed for 8.9L ISC/ISL Diesel EPA07 engines equipped with the XPI fuel system. It meters high-pressure fuel at the cylinders while operating with the factory electronic controls responsible for injection management.

General Specifications

Product Features

The 4954679NX fuel injector set is built to match factory performance and installation requirements:

• Routes pressurized fuel through the injector body for controlled delivery at the cylinder.
• Responds to electronic actuation signals that determine when each fueling event occurs.
• Regulates fuel output as engine demand changes through normal operating ranges.
• Keeps the injector seated in the intended cylinder-head position for proper nozzle alignment.
• Couples with the existing XPI pressure supply and engine-side electrical connections.
• Carries out its fueling function in sequence with the engine’s established combustion controls.

Application Notes

The 4954679NX is intended for 8.9L Cummins ISC/ISL Diesel EPA07 engines equipped with the applicable XPI fuel system. Inspect the injector seating areas and high-pressure fuel connections before installation.

Always verify part number, engine model, and fuel system configuration before installation.