6PCS Fuel Injector Set 5579403 2872127 4954679 4954927 4984332 Compatible with Cummins ISC ISL 8.9L XPI Diesel Applications

This 6-piece replacement fuel injector set is referenced to 5579403, 2872127, 4954679, 4954927 and 4984332 for selected Cummins ISC 8.3L and ISL 8.9L EPA07 XPI diesel engine configurations. Compatibility varies by engine build, so the original injector number and engine information must be verified before ordering.

Reference Numbers

5579403, 2872127, 4954679, 4954927, 4984332

These reference numbers are provided for product identification and cross-reference searches. Do not assume compatibility from a reference number alone without comparing the original injector and engine configuration.

Engine Applications

• Selected Cummins ISC 8.3L EPA07 XPI configurations
• Selected Cummins ISL 8.9L EPA07 XPI configurations

This injector set is not compatible with every ISC or ISL engine. The engine family, vehicle model or production year alone is not sufficient to confirm fitment.

Package Includes

• 6 new replacement fuel injectors

Connector tubes, seals and other installation parts are not included unless specifically shown in the product images.

Confirm Fitment Before Ordering

Please provide the following information before placing your order:

• Reference number from the original injector
• Engine serial number (ESN)
• Control Parts List number (CPL)
• Engine and emission label photos
• Clear photos of the original injector, electrical connector and nozzle

If you are unsure about compatibility, send the required information and photos to sales@xavornik.com for review.

Installation Notes

Professional installation is recommended. Inspect the fuel system, wiring and related components before installation. Fuel contamination, incorrect installation or unresolved fuel-system faults may damage the replacement injectors.