Cummins 4327147 XPI Common Rail Fuel Injector 5579421 for Cummins X15 / ISX15 / QSX15

1. Overview

The Cummins 4327147 is an XPI common rail fuel injector for the Cummins X15 / ISX15 / QSX15 (EPA 2017+). Cummins cross number for the same injector is 5579421, confirmed by an injector cross-reference table and a repair-kit listing. Remanufactured forms carry the PX / RX suffixes (4327147PX, 4327147RX). Note: XPI injectors are Cummins-made — there is no Bosch equivalent number for this injector. 100% brand new, bench-tested before dispatch and built to OE specification.

2. Specifications

• Part Number: Cummins 4327147
• Type: XPI common rail diesel fuel injector (Cummins XPI system)
• Condition: 100% brand new
• Warranty: 6 months (core injector)

3. Fitment

• Engines: Cummins X15 / ISX15 / QSX15 (EPA 2017+)
• for reference only — please confirm by the number engraved on your old injector or send us your VIN before ordering.

4. Cross-Reference

5. After-Sales & Warranty

Every injector is bench-tested before dispatch. If you receive a defective item or the wrong model, contact us within 15 days for a return or exchange (return shipping is on the buyer unless the error is ours). Core injectors carry a 6-month warranty and wear parts 3 months. Orders are processed in 1–2 business days and shipped with tracking; refunds are issued within 7 business days after the returned item passes inspection. Professional installation by a diesel technician is strongly recommended.

6. Why Choose Us

Wuhan Ranyingyi Trading Co., Ltd. (injector-factory.com) supplies diesel fuel injectors factory-direct. Free fitment check: send a photo of the engraving on your old injector or your VIN on WhatsApp (+86 156 3802 2858) and we confirm the exact match before you order. Fast response, careful packing and worldwide shipping.

FAQ

1. Does the price include shipping? No. This item is Price: On Request — contact us on WhatsApp (+86 156 3802 2858) for the latest price. Prices do not include freight; the freight cost is confirmed with you on WhatsApp after you place the order, based on your destination and quantity.

2. Is 4327147 the same injector as 5579421? Yes — 5579421 is the Cummins cross (current-form) number for this XPI injector. Still, always order by the number engraved on your old injector, or send us the engraving photo / your VIN on WhatsApp for a free check.

3. What warranty do I get? A 6-month warranty on the injector (3 months on wear parts). Defective or wrong items can be returned or exchanged within 15 days — see After-Sales & Warranty above.