These will fit the newer style injector for your 2003-04 5.9L truck. It matches nozzles number 5499. This is a complete kit that includes the nozzle install tool, 6 nozzles, and 6 copper o-rings.

-Great addition to go along with our BAG O PARTS for the 5.9L dodge.

-Maximizes your fuel more efficiently, better atomization

-Great for the daily driver looking to increase mileage and bottom end performance for towing.

-Can be used with stock injection pump, but the bag o parts makes a great addition along with the extra 100hp injector nozzles.

-Extrude Honed Balanced matched for best results