These will fit the newer style injector for your 2003-2004 5.9L Cummins. It matches nozzles number 5499.

-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 nozzles.

-Extrude Honed Balanced matched for best results

-Great performance

NOTICE: Injector Nozzles are sold individually

*All Industrial Injection Performance Products Are Not Legal For "On-Road", "Off-Road", or "Dual-Use". These Products May Only Be used In "Closed Circuit Competition Only" Vehicles. Compliance With State And Federal Emission Standards Is The Consumer's Responsibility.