SWAG Performance offers a large selection of OEM and aftermarket parts for your 2003–2004 5.9L Cummins engines, including high-pressure fuel system upgrades, electronic tuners, and direct-fit 5.9L turbochargers. Featuring early common rail-specific components, this lineup supports transmission tuning for 47RE and 48RE platforms, plus bolt-on airflow upgrades ideal for towing or track applications.
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* (4MM Allen Socket Head)
If you broke an exhaust manifold stud on your 1994-2018 Dodge Cummins 5.9L/6.7L it’s time to upgrade to an Exhaust Manifold Stud Kit (4mm Allen Socket Head). These...
If you own a 5.9L or 6.7L Cummins, you already know exhaust manifold hardware failure is practically unavoidable on high-mileage diesel trucks. Broken factory bolts, warped manifolds, stripped...
Fuel Injector Line Set
fits 03-07 Dodge Ram 5.9L Cummins Diesel EnginesÂ
Our Injector Line Set covers the complete engine of your 03-07 5.9L Common Rail Cummins Diesel engine. We highly recommended...
Longhorn Fab Stainless Steel Braided Boost Gauge Line Universal - 5' Long - 1/8" Npt 200919
The Longhorn Fab 200919 Stainless Steel Braided Boost Gauge Line gets rid of the cheap, flimsy, and...
Longhorn Fab Knurled Efi Live Dsp5 Custom Switch Knob Fits Most Dsp5 Switches-Green 200956-GREENThe Longhorn Fab Shop 200956 Knurled EFI Live DSP5 Custom Switch Knob makes your truck stand out. Get...
Longhorn Fab Knurled EFI Live Dsp5 Custom Switch Knob Fits Most Dsp5 Switches Black 200956-BLACKThe Longhorn Fab Shop 200956 Knurled EFI Live DSP5 Custom Switch Knob makes your truck stand out. Get...
Longhorn Fab Dsp5 & Csp5 Universal Switch Mount - For Dsp5 & Csp5 Switches 201051Mount your DSP5 or CSP5 switch in your truck without having to drill permanent holes through your dashboard with the...
Longhorn Fab Do Not Reflash Obdii Port Cover Fits Most Obdii Ports 200922
The Longhorn Fab Shop 200922 Do Not Reflash OBDII Port Cover is a must have for anyone that has tuning in their truck. Make...