5579403PX Genuine Cummins Fuel Injector Set For XPI 8.9L ISC ISL EPA07

Description

The 5579403PX is a genuine Cummins fuel injector set designed for 8.9L ISC/ISL Diesel EPA07 engines equipped with the XPI fuel system. It meters pressurized fuel at the cylinders under electronic control to maintain the injection operation specified by the factory engine system.

General Specifications

Product Features

The 5579403PX fuel injector set is built to match factory performance and installation requirements:

• Receives fuel from the XPI pressure circuit before delivering it at the cylinder.
• Uses electronically controlled actuation to start and stop each injection event.
• Meters fuel according to the operating commands issued by the engine control system.
• Directs fuel through the injector tip at the intended cylinder-head location.
• Retains the original interfaces for high-pressure fuel supply and electrical control.
• Functions with the surrounding XPI hardware to keep injection activity synchronized with engine operation.

Application Notes

The 5579403PX is intended for 8.9L Cummins ISC/ISL Diesel EPA07 engines equipped with the applicable XPI fuel system. Inspect the injector mounting locations, sealing surfaces, and high-pressure connections before installation.

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