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-34660-BLK Fan Drive Pulley Black Finish | 2003-2012 Dodge RAM 5.9L/6.7L 2500/3500 Cummins
Fleece FPE-34660-BLK Fan Drive Pulley Black Finish | 2003-2012 Dodge RAM 5.9L/6.7L 2500/3500 Cummins
Fleece FPE-34660-BLK Fan Drive Pulley Black Finish | 2003-2012 Dodge RAM 5.9L/6.7L 2500/3500 Cummins

Fleece Performance Products

Fleece FPE-34660-BLK Fan Drive Pulley Black Finish | 2003-2012 Dodge RAM 5.9L/6.7L 2500/3500 Cummins

$91.19
Industrial 24FC10 Smooth Billet Idler Pulley | 2003-2012 RAM 5.9L/6.7L 2500/3500 Cummins
Industrial 24FC10 Smooth Billet Idler Pulley | 2003-2012 RAM 5.9L/6.7L 2500/3500 Cummins
Industrial 24FC10 Smooth Billet Idler Pulley | 2003-2012 RAM 5.9L/6.7L 2500/3500 Cummins
Industrial 24FC10 Smooth Billet Idler Pulley | 2003-2012 RAM 5.9L/6.7L 2500/3500 Cummins

Industrial Injection

Industrial 24FC10 Smooth Billet Idler Pulley | 2003-2012 RAM 5.9L/6.7L 2500/3500 Cummins

$88.66
Mahle 54557A 1.28MM Head Gasket | 2003-2007 RAM 2500/3500 5.9L Cummins
Mahle 54557A 1.28MM Head Gasket | 2003-2007 RAM 2500/3500 5.9L Cummins

Mahle

Mahle 54557A 1.28MM Head Gasket | 2003-2007 RAM 2500/3500 5.9L Cummins

$121.43
$274.25
Mishimoto MMHOSE-RAM-03DBL Blue Silicone Coolant Hose Kit | 2003-2010 Dodge RAM 2500/3500 5.9L/6.7L Cummins
Mishimoto MMHOSE-RAM-03DBL Blue Silicone Coolant Hose Kit | 2003-2010 Dodge RAM 2500/3500 5.9L/6.7L Cummins

Mishimoto

Mishimoto MMHOSE-RAM-03DBL Blue Silicone Coolant Hose Kit | 2003-2010 Dodge RAM 2500/3500 5.9L/6.7L Cummins

$321.95
Industrial 24EE03 Stage 1 Billet Pushrod Set | 1998.5-2018 RAM 5.9L/6.7L 2500/3500 Cummins
Industrial 24EE03 Stage 1 Billet Pushrod Set | 1998.5-2018 RAM 5.9L/6.7L 2500/3500 Cummins

Industrial Injection

Industrial 24EE03 Stage 1 Billet Pushrod Set | 1998.5-2018 RAM 5.9L/6.7L 2500/3500 Cummins

$319.59
Mishimoto MMOC-F HD Transmission Cooler with Fan | Universal
Mishimoto MMOC-F HD Transmission Cooler with Fan | Universal
Mishimoto MMOC-F HD Transmission Cooler with Fan | Universal
Mishimoto MMOC-F HD Transmission Cooler with Fan | Universal

Mishimoto

Mishimoto MMOC-F HD Transmission Cooler with Fan | Universal

$177.95
Industrial PDM-06023 14mm Gorilla Girdle with ARP Main Studs Package | 2003-2022 RAM 5.9L/6.7L 2500/3500 Cummins
Industrial PDM-06023 14mm Gorilla Girdle with ARP Main Studs Package | 2003-2022 RAM 5.9L/6.7L 2500/3500 Cummins

Industrial Injection

Industrial PDM-06023 14mm Gorilla Girdle with ARP Main Studs Package | 2003-2022 RAM 5.9L/6.7L 2500/3500 Cummins

$1,016.82
Hamilton Cams 07-C-188/220S 188/220 Steel Street/Strip Cam Shaft | 1989-2018 RAM 5.9L/6.7L 2500/3500 Cummins
Hamilton Cams 07-C-188/220S 188/220 Steel Street/Strip Cam Shaft | 1989-2018 RAM 5.9L/6.7L 2500/3500 Cummins

Hamilton Cams

Hamilton Cams 07-C-188/220S 188/220 Steel Street/Strip Cam Shaft | 1989-2018 RAM 5.9L/6.7L 2500/3500 Cummins

$699
Fleece FPE-BRAB-C1 Performance Billet Rocker Arm Bridges (Set of 12) | 1998.5-2018 Dodge RAM 5.9L/6.7L 2500/3500 Cummins
Fleece FPE-BRAB-C1 Performance Billet Rocker Arm Bridges (Set of 12) | 1998.5-2018 Dodge RAM 5.9L/6.7L 2500/3500 Cummins
Fleece FPE-BRAB-C1 Performance Billet Rocker Arm Bridges (Set of 12) | 1998.5-2018 Dodge RAM 5.9L/6.7L 2500/3500 Cummins
Fleece FPE-BRAB-C1 Performance Billet Rocker Arm Bridges (Set of 12) | 1998.5-2018 Dodge RAM 5.9L/6.7L 2500/3500 Cummins
Fleece FPE-BRAB-C1 Performance Billet Rocker Arm Bridges (Set of 12) | 1998.5-2018 Dodge RAM 5.9L/6.7L 2500/3500 Cummins

Fleece Performance Products

Fleece FPE-BRAB-C1 Performance Billet Rocker Arm Bridges (Set of 12) | 1998.5-2018 Dodge RAM 5.9L/6.7L 2500/3500 Cummins

$467.43
Fleece FPE-34797 105LB Valve Spring and Retainer Set | 1998.5-2018 Dodge RAM Cummins
Fleece FPE-34797 105LB Valve Spring and Retainer Set | 1998.5-2018 Dodge RAM Cummins

Fleece Performance Products

Fleece FPE-34797 105LB Valve Spring and Retainer Set | 1998.5-2018 Dodge RAM Cummins

$499.99
Fleece FPE-CCBT Crankshaft Barring Tool Fits all Stock 5.9L/6.7L Dampers and Fluidamprs | 1994-2018 Dodge RAM 5.9L/6.7L 2500/3500 Cummins
Fleece FPE-CCBT Crankshaft Barring Tool Fits all Stock 5.9L/6.7L Dampers and Fluidamprs | 1994-2018 Dodge RAM 5.9L/6.7L 2500/3500 Cummins
Fleece FPE-CCBT Crankshaft Barring Tool Fits all Stock 5.9L/6.7L Dampers and Fluidamprs | 1994-2018 Dodge RAM 5.9L/6.7L 2500/3500 Cummins
Fleece FPE-CCBT Crankshaft Barring Tool Fits all Stock 5.9L/6.7L Dampers and Fluidamprs | 1994-2018 Dodge RAM 5.9L/6.7L 2500/3500 Cummins
Fleece FPE-CCBT Crankshaft Barring Tool Fits all Stock 5.9L/6.7L Dampers and Fluidamprs | 1994-2018 Dodge RAM 5.9L/6.7L 2500/3500 Cummins

Fleece Performance Products

Fleece FPE-CCBT Crankshaft Barring Tool Fits all Stock 5.9L/6.7L Dampers and Fluidamprs | 1994-2018 Dodge RAM 5.9L/6.7L 2500/3500 Cummins

$74.99
Edge 98005 CTS2 Pod Adapter | Universal
Edge 98005 CTS2 Pod Adapter | Universal

Edge Products

Edge 98005 CTS2 Pod Adapter | Universal

$25.33

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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