Fuel injectors

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

Name: 6PCS Fuel Injector Set 5579403 2872127 4954679 4954927 4984332 Compatible with Cummins ISC ISL 8.9L XPI Diesel Applications
Brand: XAVORNIK
SKU: XV-INJ-5579403-6-N
Price: 799.99 USD
Availability: InStock

USD $799.99

SKU XV-INJ-5579403-6-N Reference 5579403

Available Preparation: 2–4 business days

Item priceUSD $799.99

US DDP shippingUSD $102.99

Estimated delivered totalUSD $902.98

Duties included. Taxes, if applicable, are calculated at checkout. Final amount is confirmed at checkout.

6-piece replacement fuel injector set referenced to 5579403, 2872127, 4954679, 4954927 and 4984332 for selected Cummins ISC 8.3L and ISL 8.9L EPA07 XPI configurations. Verify the original part number, ESN and CPL before ordering.

6-Month Limited WarrantySupport after delivery

Fitment VerificationPart number & machine details

Worldwide ShippingOptions at checkout or quote

Reference part number: 5579403
XAVORNIK SKU: XV-INJ-5579403-6-N

Verified product data

Fitment & package details

Condition: New aftermarket replacement
Package: 6

Product information

Product details

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.

Installation & return notice

This product is covered by a 6-month limited warranty from the date of delivery. The warranty covers confirmed manufacturing defects under normal use. Returns and warranty claims are subject to the XAVORNIK Returns & Refund Policy.

Damage caused by contaminated fuel, water, metal debris, incorrect installation, failure to replace required filters or connector tubes, improper calibration, unauthorized disassembly or faults in other fuel-system components is not covered.

Frequently asked questions

How do I confirm fitment?

Match the original part number, the relevant engine or machine model, and any required serial information. Compare the product dimensions, mounting points and other fitment details shown on the product page. Contact XAVORNIK before ordering if you are unsure.

What should be checked before installation?

Inspect the product for damage and confirm that the supplied components and physical configuration match your application. Follow the product-specific instructions and the relevant installation specifications. Do not install a damaged or incompatible product.

What does the warranty cover?

6-Month Limited Warranty

The limited warranty covers confirmed manufacturing defects. Normal installation or use does not, by itself, cancel the right to submit a manufacturing-defect claim.

See our Return, Refund and Limited Warranty Policy for warranty periods, coverage, exclusions and claim procedures. The limited warranty is separate from the 30-day non-defective return request window.