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 98616 EAS Control Kit | Universal
Edge 98616 EAS Control Kit | Universal

Edge Products

Edge 98616 EAS Control Kit | Universal

$363.95
Edge 98604 EAS Turbo Timer | Universal
Edge 98604 EAS Turbo Timer | Universal

Edge Products

Edge 98604 EAS Turbo Timer | Universal

$250.95
Edge 98203 License Plate Mount Backup Camera For Edge CTS3 & Diablosport Trinity 2 | Universal
Edge 98203 License Plate Mount Backup Camera For Edge CTS3 & Diablosport Trinity 2 | Universal

Edge Products

Edge 98203 License Plate Mount Backup Camera For Edge CTS3 & Diablosport Trinity 2 | Universal

$243.95
Edge 98602 EAS Starter Cable for CS2/CTS2/CTS3 | Universal
Edge 98602 EAS Starter Cable for CS2/CTS2/CTS3 | Universal

Edge Products

Edge 98602 EAS Starter Cable for CS2/CTS2/CTS3 | Universal

$64.05
Edge 98607 0-100 PSIG EAS Pressure Sensor
Edge 98607 0-100 PSIG EAS Pressure Sensor

Edge Products

Edge 98607 0-100 PSIG EAS Pressure Sensor

$182.95
Edge 98605 5 Volt EAS Sensor Input | Universal
Edge 98605 5 Volt EAS Sensor Input | Universal

Edge Products

Edge 98605 5 Volt EAS Sensor Input | Universal

$211.95
Fleece FPE-CLNTBYPS-HS-CRVP-BLK Coolant Bypass Hose - Black Nylon Braided | 1998.5-2018 Dodge RAM 2500/3500 5.9L Cummins
Fleece FPE-CLNTBYPS-HS-CRVP-BLK Coolant Bypass Hose - Black Nylon Braided | 1998.5-2018 Dodge RAM 2500/3500 5.9L Cummins
Fleece FPE-CLNTBYPS-HS-CRVP-BLK Coolant Bypass Hose - Black Nylon Braided | 1998.5-2018 Dodge RAM 2500/3500 5.9L Cummins

Fleece Performance Products

Fleece FPE-CLNTBYPS-HS-CRVP-BLK Coolant Bypass Hose - Black Nylon Braided | 1998.5-2018 Dodge RAM 2500/3500 5.9L Cummins

$75.76
Fleece FPE-CUMM-CYLHD-KIT Cylinder Head Dowels | 1989-2023 RAM 5.9L/6.7L 2500/3500 Cummins
Fleece FPE-CUMM-CYLHD-KIT Cylinder Head Dowels | 1989-2023 RAM 5.9L/6.7L 2500/3500 Cummins
Fleece FPE-CUMM-CYLHD-KIT Cylinder Head Dowels | 1989-2023 RAM 5.9L/6.7L 2500/3500 Cummins
Fleece FPE-CUMM-CYLHD-KIT Cylinder Head Dowels | 1989-2023 RAM 5.9L/6.7L 2500/3500 Cummins

Fleece Performance Products

Fleece FPE-CUMM-CYLHD-KIT Cylinder Head Dowels | 1989-2023 RAM 5.9L/6.7L 2500/3500 Cummins

$20.99
Fleece FPE-CLNTBYPS-HS-HC-0305 Replacement EPDM Cooland Bypass Hose | 2003-2005 Dodge RAM 2500/3500 5.9L Cummins
Fleece FPE-CLNTBYPS-HS-HC-0305 Replacement EPDM Cooland Bypass Hose | 2003-2005 Dodge RAM 2500/3500 5.9L Cummins

Fleece Performance Products

Fleece FPE-CLNTBYPS-HS-HC-0305 Replacement EPDM Cooland Bypass Hose | 2003-2005 Dodge RAM 2500/3500 5.9L Cummins

$25.99
Mahle VS50419 Rocker Box Gasket | 2003-2018 RAM 2500/3500 Cummins
Mahle VS50419 Rocker Box Gasket | 2003-2018 RAM 2500/3500 Cummins

Mahle

Mahle VS50419 Rocker Box Gasket | 2003-2018 RAM 2500/3500 Cummins

$15.97
$36.81
Mahle CB-1873H H-Series Rod Bearing | 2003-2017 RAM 2500/3500 Cummins
Mahle CB-1873H H-Series Rod Bearing | 2003-2017 RAM 2500/3500 Cummins

Mahle

Mahle CB-1873H H-Series Rod Bearing | 2003-2017 RAM 2500/3500 Cummins

$21.01
$44.86
Mahle S42170 Piston Ring Set | 2004.5-2007 RAM 2500/3500 5.9L Cummins
Mahle S42170 Piston Ring Set | 2004.5-2007 RAM 2500/3500 5.9L Cummins

Mahle

Mahle S42170 Piston Ring Set | 2004.5-2007 RAM 2500/3500 5.9L Cummins

$31.87
$74.99

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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