2003-2004 Ram 2500/3500 5.9L Cummins Engine & Performance

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2003-2004 5.9L Dodge Ram 2500/3500

2003-2004 Ram 2500/3500 5.9L Cummins Crate Engines

Crate Engines

2003-2004 Ram 2500/3500 5.9L Cummins Gaskets, Gasket Kits & Bearings

Gaskets, Gasket Kits & Bearings

2003-2004 Ram 2500/3500 5.9L Cummins Head Studs & Main Studs

Head Studs & Main Studs

2003-2004 Ram 2500/3500 5.9L Cummins Heads & Valve Train

Heads & Valve Train

2003-2004 Ram 2500/3500 5.9L Cummins Oil Pans

Oil Pans

2003-2004 Ram 2500/3500 5.9L Cummins Radiators & Cooling Upgrades

Radiators & Cooling Upgrades

2003-2004 Ram 2500/3500 5.9L Cummins Rebuild Kits & Internal Parts

Rebuild Kits & Internal Parts

2003-2004 Ram 2500/3500 5.9L Cummins Rods, Pistons, Cams & More

Rods/Pistons/Cams & More

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Fleece FPE-CLNT-HS-BRKT Coolant Bypass Hose Brackets | 2003-2018 Dodge RAM 5.9L/6.7L 2500/3500 Cummins
Fleece FPE-CLNT-HS-BRKT Coolant Bypass Hose Brackets | 2003-2018 Dodge RAM 5.9L/6.7L 2500/3500 Cummins
Fleece FPE-CLNT-HS-BRKT Coolant Bypass Hose Brackets | 2003-2018 Dodge RAM 5.9L/6.7L 2500/3500 Cummins
Fleece FPE-CLNT-HS-BRKT Coolant Bypass Hose Brackets | 2003-2018 Dodge RAM 5.9L/6.7L 2500/3500 Cummins

Fleece Performance Products

Fleece FPE-CLNT-HS-BRKT Coolant Bypass Hose Brackets | 2003-2018 Dodge RAM 5.9L/6.7L 2500/3500 Cummins

$69.99
Mahle HS54556 1.20MM Head Gasket Set | 2003-2007 Dodge RAM 2500/3500 5.9L Cummins
Mahle HS54556 1.20MM Head Gasket Set | 2003-2007 Dodge RAM 2500/3500 5.9L Cummins

Mahle

Mahle HS54556 1.20MM Head Gasket Set | 2003-2007 Dodge RAM 2500/3500 5.9L Cummins

$214.26
$567.55
Hamilton Cams 07-C-178/208 Cams Stage 1 Towing Camshaft | 1989-2018 RAM 5.9L/6.7L 2500/3500 Cummins
Hamilton Cams 07-C-178/208 Cams Stage 1 Towing Camshaft | 1989-2018 RAM 5.9L/6.7L 2500/3500 Cummins

Hamilton Cams

Hamilton Cams 07-C-178/208 Cams Stage 1 Towing Camshaft | 1989-2018 RAM 5.9L/6.7L 2500/3500 Cummins

$649
Edge 98608 EAS Temperature Sensor | Universal
Edge 98608 EAS Temperature Sensor | Universal

Edge Products

Edge 98608 EAS Temperature Sensor | Universal

$66.45
Hamilton Cams 07-C-001 Zinc Additive Break In Lubricant for Hamilton Cam Shafts
Hamilton Cams 07-C-001 Zinc Additive Break In Lubricant for Hamilton Cam Shafts

Hamilton Cams

Hamilton Cams 07-C-001 Zinc Additive Break In Lubricant for Hamilton Cam Shafts

$15.99
Fleece FPE-OC-CR-F Cummins Billet Oil Cap Cover Black | 2003-2018 Dodge RAM 5.9L/6.7L 2500/3500 Cummins
Fleece FPE-OC-CR-F Cummins Billet Oil Cap Cover Black | 2003-2018 Dodge RAM 5.9L/6.7L 2500/3500 Cummins
Fleece FPE-OC-CR-F Cummins Billet Oil Cap Cover Black | 2003-2018 Dodge RAM 5.9L/6.7L 2500/3500 Cummins

Fleece Performance Products

Fleece FPE-OC-CR-F Cummins Billet Oil Cap Cover Black | 2003-2018 Dodge RAM 5.9L/6.7L 2500/3500 Cummins

$34.99
Mahle CB-1873AP Standard Size Rod Bearing | 2003-2007 Dodge RAM 2500/3500 5.9L Cummins
Mahle CB-1873AP Standard Size Rod Bearing | 2003-2007 Dodge RAM 2500/3500 5.9L Cummins

Mahle

Mahle CB-1873AP Standard Size Rod Bearing | 2003-2007 Dodge RAM 2500/3500 5.9L Cummins

$10.83
$22.74
Mishimoto MMRAD-RAM-03 Aluminum Radiator | 2003-2009 RAM 2500/3500 Cummins
Mishimoto MMRAD-RAM-03 Aluminum Radiator | 2003-2009 RAM 2500/3500 Cummins
Mishimoto MMRAD-RAM-03 Aluminum Radiator | 2003-2009 RAM 2500/3500 Cummins
Mishimoto MMRAD-RAM-03 Aluminum Radiator | 2003-2009 RAM 2500/3500 Cummins
Mishimoto MMRAD-RAM-03 Aluminum Radiator | 2003-2009 RAM 2500/3500 Cummins

Mishimoto

Mishimoto MMRAD-RAM-03 Aluminum Radiator | 2003-2009 RAM 2500/3500 Cummins

$938.95
Gator Fasteners HSK5967C-CS Competition 625 Series Head Stud Kit | 1998.5-2021 Dodge RAM 5.9L/6.7L 2500/3500 Cummins
Gator Fasteners HSK5967C-CS Competition 625 Series Head Stud Kit | 1998.5-2021 Dodge RAM 5.9L/6.7L 2500/3500 Cummins
Gator Fasteners HSK5967C-CS Competition 625 Series Head Stud Kit | 1998.5-2021 Dodge RAM 5.9L/6.7L 2500/3500 Cummins
Gator Fasteners HSK5967C-CS Competition 625 Series Head Stud Kit | 1998.5-2021 Dodge RAM 5.9L/6.7L 2500/3500 Cummins
Gator Fasteners HSK5967C-CS Competition 625 Series Head Stud Kit | 1998.5-2021 Dodge RAM 5.9L/6.7L 2500/3500 Cummins

Gator Fasteners

Gator Fasteners HSK5967C-CS Competition 625 Series Head Stud Kit | 1998.5-2021 Dodge RAM 5.9L/6.7L 2500/3500 Cummins

$1,289.99
Hamilton Cams 07-CC-24V178 Towing Camshaft Combo | 1989-2018 RAM 5.9L/6.7L 2500/3500 Cummins
Hamilton Cams 07-CC-24V178 Towing Camshaft Combo | 1989-2018 RAM 5.9L/6.7L 2500/3500 Cummins

Hamilton Cams

Hamilton Cams 07-CC-24V178 Towing Camshaft Combo | 1989-2018 RAM 5.9L/6.7L 2500/3500 Cummins

$1,349
Fluidampr 300008 Full Power Kit | 1989-2018 RAM 5.9L/6.7L 2500/3500 Cummins
Fluidampr 300008 Full Power Kit | 1989-2018 RAM 5.9L/6.7L 2500/3500 Cummins

Fluidampr

Fluidampr 300008 Full Power Kit | 1989-2018 RAM 5.9L/6.7L 2500/3500 Cummins

$230.62
Fluidampr 300002 Drill Pin Kit | 1992-2018 RAM 5.9L/6.7L 2500/3500 Cummins
Fluidampr 300002 Drill Pin Kit | 1992-2018 RAM 5.9L/6.7L 2500/3500 Cummins

Fluidampr

Fluidampr 300002 Drill Pin Kit | 1992-2018 RAM 5.9L/6.7L 2500/3500 Cummins

$68.49

2003-2004 5.9L Dodge Ram 2500/3500

Power Lift Shop All

If you're looking to turn your 5.9L Cummins into a beast that can handle anything thrown its way, check out our Engine & Performance upgrades!  When it comes to every aspect of performance, from cooling upgrades to free flow pipes and intakes, we've got your truck covered. From tuners & modules, oil pans, valve covers, and even high-performance crate engines, Alligator Performance is sure to have what you need in order to upgrade your Ram 5.9L Cummins. Whether you're looking to add more power, reliability or durability, we have you covered at Alligator Performance. Pair your new engine upgrades with our selection of top tier Turbo Upgrades! Ram Cummins Fitments: 2003, 2004 Ram 5.9L Cummins. Submodel Fitments: Tradesman, Laramie, Laramie Longhorn, Big Horn, Limited, Lone Star, Power Wagon. Some exceptions apply, please see individual product pages for specific fitments.

Tuners & Modules
Cooling Upgrades
Head Studs & Main Studs
Oil Pans, Valve Covers & Accessories
Crate Engines & Engine Rebuild Kits

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