This is the HEUI injector used in the 2004.5-2006 F250/F550, Excursion, F650/F750, E sieries, and 2006 LCF with the 6.0L Powerstroke engine. There was a split in the 2004 6.0 Powerstrokes. The early engines used a different injector. This injector can be identified by the black wire guide on top of the injector solenoid. WARRANTY: Injectors are warranted for 12 months. The warranty period commences the day the product is delivered to the original purchaser. A core charge of $250.00 will be applied to your credit card account, if the old core is are not returned within 30 days you will get credit. Feel free to call our parts department at 800-891-8038 with any questions.