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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Edge 98617 EAS Competition Kit | Universal
Edge 98617 EAS Competition Kit | Universal

Edge Products

Edge 98617 EAS Competition Kit | Universal

$491.95
Edge 85300 Evolution CS2 | GM/Ford/Dodge Applications
5.0
Edge 85300 Evolution CS2 | GM/Ford/Dodge Applications
Edge 85300 Evolution CS2 | GM/Ford/Dodge Applications
Edge 85300 Evolution CS2 | GM/Ford/Dodge Applications
Edge 85300 Evolution CS2 | GM/Ford/Dodge Applications

Edge Products

Edge 85300 Evolution CS2 | GM/Ford/Dodge Applications

$499.95
Edge 85400-300 Evolution CTS3 | 2003-2012 RAM 5.9L/6.9L Cummins
Edge 85400-300 Evolution CTS3 | 2003-2012 RAM 5.9L/6.9L Cummins

Edge Products

Edge 85400-300 Evolution CTS3 | 2003-2012 RAM 5.9L/6.9L Cummins

$689.95
Mahle CS54556 Lower Engine Gakset Set | 2003-2007 Dodge RAM 2500/3500 5.9L Cummins
Mahle CS54556 Lower Engine Gakset Set | 2003-2007 Dodge RAM 2500/3500 5.9L Cummins

Mahle

Mahle CS54556 Lower Engine Gakset Set | 2003-2007 Dodge RAM 2500/3500 5.9L Cummins

$160.40
$344.72
PPE 218034300 Head Stud Kit | 1998.5-2022 RAM 5.9L/6.7L 2500/3500 Cummins
PPE 218034300 Head Stud Kit | 1998.5-2022 RAM 5.9L/6.7L 2500/3500 Cummins
PPE 218034300 Head Stud Kit | 1998.5-2022 RAM 5.9L/6.7L 2500/3500 Cummins
PPE 218034300 Head Stud Kit | 1998.5-2022 RAM 5.9L/6.7L 2500/3500 Cummins

PPE

PPE 218034300 Head Stud Kit | 1998.5-2022 RAM 5.9L/6.7L 2500/3500 Cummins

$413.99
Fleece FPE-61-10005 Freedom Series Cylinder Head Street | 2003-2007 Dodge RAM 2500/3500 5.9L Cummins
Fleece FPE-61-10005 Freedom Series Cylinder Head Street | 2003-2007 Dodge RAM 2500/3500 5.9L Cummins
Fleece FPE-61-10005 Freedom Series Cylinder Head Street | 2003-2007 Dodge RAM 2500/3500 5.9L Cummins
Fleece FPE-61-10005 Freedom Series Cylinder Head Street | 2003-2007 Dodge RAM 2500/3500 5.9L Cummins

Fleece Performance Products

Fleece FPE-61-10005 Freedom Series Cylinder Head Street | 2003-2007 Dodge RAM 2500/3500 5.9L Cummins

$2,199
$2,299
ARP 100-9911 Ultra-Torque Fastener Assembly Lubricant (20 oz) | Universal
ARP 100-9911 Ultra-Torque Fastener Assembly Lubricant (20 oz) | Universal
ARP 100-9911 Ultra-Torque Fastener Assembly Lubricant (20 oz) | Universal

ARP

ARP 100-9911 Ultra-Torque Fastener Assembly Lubricant (20 oz) | Universal

$27.26
$52.01
PPE 214052001 Hardended Stainless Steel Oil Drain Plug | 2003-2024 RAM 5.9L/6.7L 2500/3500 Cummins
PPE 214052001 Hardended Stainless Steel Oil Drain Plug | 2003-2024 RAM 5.9L/6.7L 2500/3500 Cummins
PPE 214052001 Hardended Stainless Steel Oil Drain Plug | 2003-2024 RAM 5.9L/6.7L 2500/3500 Cummins

PPE

PPE 214052001 Hardended Stainless Steel Oil Drain Plug | 2003-2024 RAM 5.9L/6.7L 2500/3500 Cummins

$22.49
Hamilton Cams 07-S-003 Hamilton Cams Valve Springs | 1998.5-2018 RAM 5.9L/6.7L 2500/3500 Cummins
Hamilton Cams 07-S-003 Hamilton Cams Valve Springs | 1998.5-2018 RAM 5.9L/6.7L 2500/3500 Cummins

Hamilton Cams

Hamilton Cams 07-S-003 Hamilton Cams Valve Springs | 1998.5-2018 RAM 5.9L/6.7L 2500/3500 Cummins

$349
Industrial 24EE01 Stage 1 Billet Pushrod | 1998.5-2018 RAM 5.9L/6.7L 2500/3500 Cummins
Industrial 24EE01 Stage 1 Billet Pushrod | 1998.5-2018 RAM 5.9L/6.7L 2500/3500 Cummins

Industrial Injection

Industrial 24EE01 Stage 1 Billet Pushrod | 1998.5-2018 RAM 5.9L/6.7L 2500/3500 Cummins

$25.50
EFI Live LIC-FS2-VIN Tuning FlashScan V2 VIN License | Universal
EFI Live LIC-FS2-VIN Tuning FlashScan V2 VIN License | Universal

EFI Live

EFI Live LIC-FS2-VIN Tuning FlashScan V2 VIN License | Universal

$125
Fleece FPE-61-10005-HD Freedom Series Cylinder Head (Street HD) | 2003-2007 Dodge RAM 2500/3500 5.9L Cummins
Fleece FPE-61-10005-HD Freedom Series Cylinder Head (Street HD) | 2003-2007 Dodge RAM 2500/3500 5.9L Cummins
Fleece FPE-61-10005-HD Freedom Series Cylinder Head (Street HD) | 2003-2007 Dodge RAM 2500/3500 5.9L Cummins
Fleece FPE-61-10005-HD Freedom Series Cylinder Head (Street HD) | 2003-2007 Dodge RAM 2500/3500 5.9L Cummins

Fleece Performance Products

Fleece FPE-61-10005-HD Freedom Series Cylinder Head (Street HD) | 2003-2007 Dodge RAM 2500/3500 5.9L Cummins

$2,599
$2,699

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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