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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Hamilton Cams 07-C-178/208S Towing Steel Cam | 1989-2018 RAM 5.9L/6.7L 2500/3500 Cummins
Hamilton Cams 07-C-178/208S Towing Steel Cam | 1989-2018 RAM 5.9L/6.7L 2500/3500 Cummins

Hamilton Cams

Hamilton Cams 07-C-178/208S Towing Steel Cam | 1989-2018 RAM 5.9L/6.7L 2500/3500 Cummins

$699
Gator Fasteners RBK59 Heavy Duty Rod Bolt Kit | 1989-2007 RAM 2500/3500 5.9L Cummins
Gator Fasteners RBK59 Heavy Duty Rod Bolt Kit | 1989-2007 RAM 2500/3500 5.9L Cummins
Gator Fasteners RBK59 Heavy Duty Rod Bolt Kit | 1989-2007 RAM 2500/3500 5.9L Cummins
Gator Fasteners RBK59 Heavy Duty Rod Bolt Kit | 1989-2007 RAM 2500/3500 5.9L Cummins

Gator Fasteners

Gator Fasteners RBK59 Heavy Duty Rod Bolt Kit | 1989-2007 RAM 2500/3500 5.9L Cummins

$124.99
Gator Fasteners MSK5924 Heavy Duty Main Stud Kit | 1998.5-2007 RAM 2500/3500 5.9L Cummins
Gator Fasteners MSK5924 Heavy Duty Main Stud Kit | 1998.5-2007 RAM 2500/3500 5.9L Cummins
Gator Fasteners MSK5924 Heavy Duty Main Stud Kit | 1998.5-2007 RAM 2500/3500 5.9L Cummins
Gator Fasteners MSK5924 Heavy Duty Main Stud Kit | 1998.5-2007 RAM 2500/3500 5.9L Cummins
Gator Fasteners MSK5924 Heavy Duty Main Stud Kit | 1998.5-2007 RAM 2500/3500 5.9L Cummins

Gator Fasteners

Gator Fasteners MSK5924 Heavy Duty Main Stud Kit | 1998.5-2007 RAM 2500/3500 5.9L Cummins

$229.99
Choate Engineering CEP59-67BFPK Set of 4 Billet Freeze Plugs | 1994-2024 RAM 5.9L/6.7L 2500/3500 Cummins
Choate Engineering CEP59-67BFPK Set of 4 Billet Freeze Plugs | 1994-2024 RAM 5.9L/6.7L 2500/3500 Cummins
Choate Engineering CEP59-67BFPK Set of 4 Billet Freeze Plugs | 1994-2024 RAM 5.9L/6.7L 2500/3500 Cummins
Choate Engineering CEP59-67BFPK Set of 4 Billet Freeze Plugs | 1994-2024 RAM 5.9L/6.7L 2500/3500 Cummins

Choate Engineering

Choate Engineering CEP59-67BFPK Set of 4 Billet Freeze Plugs | 1994-2024 RAM 5.9L/6.7L 2500/3500 Cummins

$198
Choate Engineering CEP59CBIOP Break In Oil Package 15w40 | 1994-2007 RAM 2500/3500 5.9L Cummins
Choate Engineering CEP59CBIOP Break In Oil Package 15w40 | 1994-2007 RAM 2500/3500 5.9L Cummins

Choate Engineering

Choate Engineering CEP59CBIOP Break In Oil Package 15w40 | 1994-2007 RAM 2500/3500 5.9L Cummins

$180
Carrillo DH7104 High-Performance Piston Set | 1989-2007 RAM 2500/3500 5.9L Cummins
Carrillo DH7104 High-Performance Piston Set | 1989-2007 RAM 2500/3500 5.9L Cummins

Carrillo

Carrillo DH7104 High-Performance Piston Set | 1989-2007 RAM 2500/3500 5.9L Cummins

$1,852.20
Carrillo DH7103 High-Performance Piston Set | 1989-2007 RAM 2500/3500 5.9L Cummins
Carrillo DH7103 High-Performance Piston Set | 1989-2007 RAM 2500/3500 5.9L Cummins
Carrillo DH7103 High-Performance Piston Set | 1989-2007 RAM 2500/3500 5.9L Cummins

Carrillo

Carrillo DH7103 High-Performance Piston Set | 1989-2007 RAM 2500/3500 5.9L Cummins

$1,852.20
Carrillo DH7102 High-Performance Piston Set | 1989-2007 RAM 2500/3500 5.9L Cummins
Carrillo DH7102 High-Performance Piston Set | 1989-2007 RAM 2500/3500 5.9L Cummins
Carrillo DH7102 High-Performance Piston Set | 1989-2007 RAM 2500/3500 5.9L Cummins

Carrillo

Carrillo DH7102 High-Performance Piston Set | 1989-2007 RAM 2500/3500 5.9L Cummins

$1,852.20
Carrillo DH7100 High-Performance Piston Set | 1989-2007 RAM 2500/3500 5.9L Cummins
Carrillo DH7100 High-Performance Piston Set | 1989-2007 RAM 2500/3500 5.9L Cummins

Carrillo

Carrillo DH7100 High-Performance Piston Set | 1989-2007 RAM 2500/3500 5.9L Cummins

$1,852.20
Carrillo DH7101 High-Performance Piston Set | 1989-2007 RAM 2500/3500 5.9L Cummins
Carrillo DH7101 High-Performance Piston Set | 1989-2007 RAM 2500/3500 5.9L Cummins
Carrillo DH7101 High-Performance Piston Set | 1989-2007 RAM 2500/3500 5.9L Cummins

Carrillo

Carrillo DH7101 High-Performance Piston Set | 1989-2007 RAM 2500/3500 5.9L Cummins

$1,852.20
Carrillo D7104 High-Performance Piston Set | 1989-2007 RAM 2500/3500 5.9L Cummins
Carrillo D7104 High-Performance Piston Set | 1989-2007 RAM 2500/3500 5.9L Cummins

Carrillo

Carrillo D7104 High-Performance Piston Set | 1989-2007 RAM 2500/3500 5.9L Cummins

$1,852.20
Carrillo D7103 High-Performance Piston Set | 1989-2007 RAM 2500/3500 5.9L Cummins
Carrillo D7103 High-Performance Piston Set | 1989-2007 RAM 2500/3500 5.9L Cummins

Carrillo

Carrillo D7103 High-Performance Piston Set | 1989-2007 RAM 2500/3500 5.9L Cummins

$1,852.20

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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