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

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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Gator Fasteners HSK5967C-CS Competition 625 Series Head Stud Kit | 1998.5-2024 Dodge RAM 2500/3500 5.9L/6.7L Cummins
Gator Fasteners HSK5967C-CS Competition 625 Series Head Stud Kit | 1998.5-2024 Dodge RAM 2500/3500 5.9L/6.7L Cummins
Gator Fasteners HSK5967C-CS Competition 625 Series Head Stud Kit | 1998.5-2024 Dodge RAM 2500/3500 5.9L/6.7L Cummins
Gator Fasteners HSK5967C-CS Competition 625 Series Head Stud Kit | 1998.5-2024 Dodge RAM 2500/3500 5.9L/6.7L Cummins
Gator Fasteners HSK5967C-CS Competition 625 Series Head Stud Kit | 1998.5-2024 Dodge RAM 2500/3500 5.9L/6.7L Cummins

Gator Fasteners

Gator Fasteners HSK5967C-CS Competition 625 Series Head Stud Kit | 1998.5-2024 Dodge RAM 2500/3500 5.9L/6.7L Cummins

SKU: GTFHSK5967C-CS
$1,289.99
Fluidampr 300002 Drill Pin Kit | 1992-2018 Dodge RAM 2500/3500 5.9L/6.7L Cummins
IN STOCK
Fluidampr 300002 Drill Pin Kit | 1992-2018 Dodge RAM 2500/3500 5.9L/6.7L Cummins
Fluidampr 300002 Drill Pin Kit | 1992-2018 Dodge RAM 2500/3500 5.9L/6.7L Cummins

Fluidampr

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

SKU: FLU300002
$68.49
Fleece FPE-34797 105LB Valve Spring and Retainer Set | 1998.5-2018 Dodge RAM 2500/3500 5.9L/6.7L Cummins
IN STOCK
Fleece FPE-34797 105LB Valve Spring and Retainer Set | 1998.5-2018 Dodge RAM 2500/3500 5.9L/6.7L Cummins
Fleece FPE-34797 105LB Valve Spring and Retainer Set | 1998.5-2018 Dodge RAM 2500/3500 5.9L/6.7L Cummins

Fleece Performance Products

Fleece FPE-34797 105LB Valve Spring and Retainer Set | 1998.5-2018 Dodge RAM 2500/3500 5.9L/6.7L Cummins

SKU: FLCFPE-34797
$499.99
Fleece FPE-CCBT Crankshaft Barring Tool Dampers & Fluidamprs | 1994-2018 Dodge RAM 2500/3500 5.9L/6.7L Cummins
IN STOCK
Fleece FPE-CCBT Crankshaft Barring Tool Dampers & Fluidamprs | 1994-2018 Dodge RAM 2500/3500 5.9L/6.7L Cummins
Fleece FPE-CCBT Crankshaft Barring Tool Dampers & Fluidamprs | 1994-2018 Dodge RAM 2500/3500 5.9L/6.7L Cummins
Fleece FPE-CCBT Crankshaft Barring Tool Dampers & Fluidamprs | 1994-2018 Dodge RAM 2500/3500 5.9L/6.7L Cummins
Fleece FPE-CCBT Crankshaft Barring Tool Dampers & Fluidamprs | 1994-2018 Dodge RAM 2500/3500 5.9L/6.7L Cummins
Fleece FPE-CCBT Crankshaft Barring Tool Dampers & Fluidamprs | 1994-2018 Dodge RAM 2500/3500 5.9L/6.7L Cummins

Fleece Performance Products

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

SKU: FLCFPE-CCBT
$74.99
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 85300 Evolution CS2 | GM/Ford/Dodge Applications

Edge Products

Edge 85300 Evolution CS2 | GM/Ford/Dodge Applications

SKU: EDG85300
$429.95
$575.95
Mahle CS54556 Lower Engine Gakset Set | 2003-2007 Dodge RAM 2500/3500 5.9L Cummins
IN STOCK
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

SKU: MCICS54556
$186.37
Fleece FPE-34660-BLK Fan Drive Pulley Black Finish | 2003-2012 Dodge RAM 5.9L/6.7L 2500/3500 Cummins
IN STOCK
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

SKU: FLCFPE-34660-BLK
$91.19
Mahle 54557A 1.28MM Head Gasket | 2003-2007 Dodge RAM 2500/3500 5.9L Cummins
IN STOCK
Mahle 54557A 1.28MM Head Gasket | 2003-2007 Dodge RAM 2500/3500 5.9L Cummins

Mahle

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

SKU: MCI54557A
$133.20
PPE 228052159 Hard Anodized Billet Aluminum Oil Filter Socket 68mm 14F | Universal
IN STOCK
PPE 228052159 Hard Anodized Billet Aluminum Oil Filter Socket 68mm 14F | Universal
PPE 228052159 Hard Anodized Billet Aluminum Oil Filter Socket 68mm 14F | Universal

PPE

PPE 228052159 Hard Anodized Billet Aluminum Oil Filter Socket 68mm 14F | Universal

SKU: PPE228052159
$35.99
$39.99
Fleece FPE-CUMM-HCL-KIT-0312 Heater Feed and Return Hose Kit | 2003-2012 RAM 2500/3500 6.7L Cummins
IN STOCK
Fleece FPE-CUMM-HCL-KIT-0312 Heater Feed and Return Hose Kit | 2003-2012 RAM 2500/3500 6.7L Cummins
Fleece FPE-CUMM-HCL-KIT-0312 Heater Feed and Return Hose Kit | 2003-2012 RAM 2500/3500 6.7L Cummins

Fleece Performance Products

Fleece FPE-CUMM-HCL-KIT-0312 Heater Feed and Return Hose Kit | 2003-2012 RAM 2500/3500 6.7L Cummins

SKU: FLCFPE-CUMM-HCL-KIT-0312
$99.99
$104.99
JEEPCABLES RAMG3-0205-2/0G-5.9-6.7DIESEL 3rd Gen Battery Cable Kit (Size 2/0 GA) | 2002-2005 Dodge RAM 2500/3500 Cummins Diesel
IN STOCK
JEEPCABLES RAMG3-0205-2/0G-5.9-6.7DIESEL 3rd Gen Battery Cable Kit (Size 2/0 GA) | 2002-2005 Dodge RAM 2500/3500 Cummins Diesel
JEEPCABLES RAMG3-0205-2/0G-5.9-6.7DIESEL 3rd Gen Battery Cable Kit (Size 2/0 GA) | 2002-2005 Dodge RAM 2500/3500 Cummins Diesel
JEEPCABLES RAMG3-0205-2/0G-5.9-6.7DIESEL 3rd Gen Battery Cable Kit (Size 2/0 GA) | 2002-2005 Dodge RAM 2500/3500 Cummins Diesel
JEEPCABLES RAMG3-0205-2/0G-5.9-6.7DIESEL 3rd Gen Battery Cable Kit (Size 2/0 GA) | 2002-2005 Dodge RAM 2500/3500 Cummins Diesel

JEEPCABLES

JEEPCABLES RAMG3-0205-2/0G-5.9-6.7DIESEL 3rd Gen Battery Cable Kit (Size 2/0 GA) | 2002-2005 Dodge RAM 2500/3500 Cummins Diesel

SKU: JEERAMG3-0205-20G-5.9-6.7DIESE
$375.50
BD Diesel DJPCNC100071 Billet Valve Cover Dodge RAM Cummins | 2003-2005 Dodge RAM 2500/3500 5.9L Cummins
BD Diesel DJPCNC100071 Billet Valve Cover Dodge RAM Cummins | 2003-2005 Dodge RAM 2500/3500 5.9L Cummins
BD Diesel DJPCNC100071 Billet Valve Cover Dodge RAM Cummins | 2003-2005 Dodge RAM 2500/3500 5.9L Cummins
BD Diesel DJPCNC100071 Billet Valve Cover Dodge RAM Cummins | 2003-2005 Dodge RAM 2500/3500 5.9L Cummins

BD Diesel

BD Diesel DJPCNC100071 Billet Valve Cover Dodge RAM Cummins | 2003-2005 Dodge RAM 2500/3500 5.9L Cummins

SKU: BDDDJPCNC100071
$608.99
AFE 44-LF002 Pro-Guard D2 Replacement Oil Filter | 1989-2024 Dodge RAM 2500/3500 5.9L/6.7L Cummins
IN STOCK
AFE 44-LF002 Pro-Guard D2 Replacement Oil Filter | 1989-2024 Dodge RAM 2500/3500 5.9L/6.7L Cummins

aFe Power

AFE 44-LF002 Pro-Guard D2 Replacement Oil Filter | 1989-2024 Dodge RAM 2500/3500 5.9L/6.7L Cummins

SKU: AFE44-LF002
$18
Wehrli 100241-RAW Billet Individual Runner Intake Manifold | 2003-2018 Dodge RAM 2500/3500 5.9L/6.7L 2500/3500 Cummins
Wehrli 100241-RAW Billet Individual Runner Intake Manifold | 2003-2018 Dodge RAM 2500/3500 5.9L/6.7L 2500/3500 Cummins
Wehrli 100241-RAW Billet Individual Runner Intake Manifold | 2003-2018 Dodge RAM 2500/3500 5.9L/6.7L 2500/3500 Cummins
Wehrli 100241-RAW Billet Individual Runner Intake Manifold | 2003-2018 Dodge RAM 2500/3500 5.9L/6.7L 2500/3500 Cummins
Wehrli 100241-RAW Billet Individual Runner Intake Manifold | 2003-2018 Dodge RAM 2500/3500 5.9L/6.7L 2500/3500 Cummins

Wehrli Custom Fab

Wehrli 100241-RAW Billet Individual Runner Intake Manifold | 2003-2018 Dodge RAM 2500/3500 5.9L/6.7L 2500/3500 Cummins

SKU: WCF100241-RAW
$2,575
Industrial 24EE04 Stage 3 Chromoly Pushrod Set | 1998.5-2018 Dodge RAM 2500/3500 5.9L/6.7L Cummins
Industrial 24EE04 Stage 3 Chromoly Pushrod Set | 1998.5-2018 Dodge RAM 2500/3500 5.9L/6.7L Cummins
Industrial 24EE04 Stage 3 Chromoly Pushrod Set | 1998.5-2018 Dodge RAM 2500/3500 5.9L/6.7L Cummins

Industrial Injection

Industrial 24EE04 Stage 3 Chromoly Pushrod Set | 1998.5-2018 Dodge RAM 2500/3500 5.9L/6.7L Cummins

SKU: IIS24EE04
$470.40
Industrial 24EE03 Stage 1 Billet Pushrod Set | 1998.5-2018 Dodge RAM 5.9L/6.7L 2500/3500 Cummins
IN STOCK
Industrial 24EE03 Stage 1 Billet Pushrod Set | 1998.5-2018 Dodge RAM 5.9L/6.7L 2500/3500 Cummins
Industrial 24EE03 Stage 1 Billet Pushrod Set | 1998.5-2018 Dodge RAM 5.9L/6.7L 2500/3500 Cummins

Industrial Injection

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

SKU: IIS24EE03
$354
Hamilton Cams 07-C-188/220S 188/220 Steel Street/Strip Cam Shaft | 1989-2018 Dodge RAM 2500/3500 5.9L/6.7L Cummins
IN STOCK
Hamilton Cams 07-C-188/220S 188/220 Steel Street/Strip Cam Shaft | 1989-2018 Dodge RAM 2500/3500 5.9L/6.7L Cummins
Hamilton Cams 07-C-188/220S 188/220 Steel Street/Strip Cam Shaft | 1989-2018 Dodge RAM 2500/3500 5.9L/6.7L Cummins

Hamilton Cams

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

SKU: HAM07-C-188/220S
$699
Edge 98611 EAS Expandable Probe | Universal
IN STOCK
Edge 98611 EAS Expandable Probe | Universal
Edge 98611 EAS Expandable Probe | Universal
Edge 98611 EAS Expandable Probe | Universal

Edge Products

Edge 98611 EAS Expandable Probe | Universal

SKU: EDG98611
$188.95
$212.95
Edge 98605 5 Volt EAS Sensor Input | Universal
IN STOCK
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

SKU: EDG98605
$254.95
$286.95
Fleece FPE-CLNTBYPS-HS-CRVP-BLK Coolant Bypass Hose - Black Nylon Braided | 1998.5-2018 Dodge RAM 2500/3500 5.9L/6.7L Cummins
IN STOCK
Fleece FPE-CLNTBYPS-HS-CRVP-BLK Coolant Bypass Hose - Black Nylon Braided | 1998.5-2018 Dodge RAM 2500/3500 5.9L/6.7L Cummins
Fleece FPE-CLNTBYPS-HS-CRVP-BLK Coolant Bypass Hose - Black Nylon Braided | 1998.5-2018 Dodge RAM 2500/3500 5.9L/6.7L Cummins
Fleece FPE-CLNTBYPS-HS-CRVP-BLK Coolant Bypass Hose - Black Nylon Braided | 1998.5-2018 Dodge RAM 2500/3500 5.9L/6.7L 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/6.7L Cummins

SKU: FLCFPE-CLNTBYPS-HS-CRVP-BLK
$75.76
Industrial 24EE01 Stage 1 Billet Pushrod | 1998.5-2018 Dodge RAM 2500/3500 5.9L/6.7L Cummins
IN STOCK
Industrial 24EE01 Stage 1 Billet Pushrod | 1998.5-2018 Dodge RAM 2500/3500 5.9L/6.7L Cummins
Industrial 24EE01 Stage 1 Billet Pushrod | 1998.5-2018 Dodge RAM 2500/3500 5.9L/6.7L Cummins

Industrial Injection

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

SKU: IIS24EE01
$29.05
Mahle CB1873H H-Series Rod Bearing | 2003-2017 Dodge RAM 2500/3500 Cummins
IN STOCK
Mahle CB1873H H-Series Rod Bearing | 2003-2017 Dodge RAM 2500/3500 Cummins

Mahle

Mahle CB1873H H-Series Rod Bearing | 2003-2017 Dodge RAM 2500/3500 Cummins

SKU: MCICB1873H
$22.68
EFI Live LIC-FS2-VIN Tuning FlashScan V2 VIN License | Universal
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

SKU: EFILIC-FS2-VIN
$125
$129.99
Fleece FPE-61-10005-HD Freedom Series Cylinder Head (Street HD) | 2003-2007 Dodge RAM 2500/3500 5.9L Cummins
IN STOCK
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

SKU: FLCFPE-61-10005-HD
$2,599
$2,699

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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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