Collection: 2003-2004 5.9L 24V Cummins Engine & Performance
2003-2004 5.9L 24V Cummins Engine & Performance
Unlock Maximum Power with Engine & Performance Parts for Your 2003-2004 5.9L Cummins
Boost your truck's power, efficiency, and reliability with high-performance engine parts and accessories for the 2003-2004 5.9L 24V Cummins. Whether...
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Billet CCV/Fuel Pump Block Off Plate
4.67 / 5.0
(6) 6 total reviews
Regular price $65.00 USDSale price $65.00 USD Regular priceUnit price / per -
Mahle VS50419 Rocker Box Gasket
Regular price $17.50 USDSale price $17.50 USD Regular priceUnit price / per -
Mopar 68089195AA Transfer Case Fluid
Regular price $54.92 USDSale price $54.92 USD Regular priceUnit price / per -
Tameless Performance 5.9L Cummins Motor Mounts (2003–2007)
5.0 / 5.0
(2) 2 total reviews
Regular price From $418.00 USDSale price From $418.00 USD Regular priceUnit price / per -
Mopar 5189977AD ASRC Automatic Transmission Fluid
Regular price $98.42 USDSale price $98.42 USD Regular priceUnit price / per -
Mopar 5189966AD ASRC Automatic Transmission Fluid
5.0 / 5.0
(1) 1 total reviews
Regular price $16.56 USDSale price $16.56 USD Regular priceUnit price / per -
ARP Bolts - Valve Cover Hardware
Regular price $60.00 USDSale price $60.00 USD Regular priceUnit price / per -
ARP 247-4204 Diesel Custom Age 625+ Head Stud Kit for 1998.5-2024 Dodge Ram 5.9L/6.7L Cummins
Regular price $1,277.00 USDSale price $1,277.00 USD Regular priceUnit price / per -
Tameless Performance T4 24V Cummins Exhaust Manifold
5.0 / 5.0
(1) 1 total reviews
Regular price $989.00 USDSale price $989.00 USD Regular priceUnit price / per -
Tameless Performance Billet Valve Cover 2003–2005 Dodge Ram 2500 / 3500 5.9L 24-Valve Cummins
Regular price From $759.00 USDSale price From $759.00 USD Regular priceUnit price / per -
Mopar 68218058AC ATF+4 Transmission Fluid
Regular price $51.52 USDSale price $51.52 USD Regular priceUnit price / per -
Mopar 68049954AA Transfer Case Lubricant
Regular price $54.40 USDSale price $54.40 USD Regular priceUnit price / per -
PPE 1989-2024 Dodge/RAM 5.9L/6.7L Cummins MicroPure XR® Engine Oil Filter
Regular price $29.69 USDSale price $29.69 USD Regular priceUnit price / per -
Tameless Performance Billet Fuel Tank Sump Kit – Universal Diesel
Regular price $154.00 USDSale price $154.00 USD Regular priceUnit price / per -
Hot Shot's Secret Everyday Diesel Treatment
Regular price From $5.99 USDSale price From $5.99 USD Regular priceUnit price / per -
Cummins Valve Cover Conversion Harness (03–05 to 2006) Converts 03-05 trucks to 06+ Valve Cover.
Regular price $160.00 USDSale price $160.00 USD Regular priceUnit price / per$162.00 USDSale -
Bullet Proof Diesel 90201228 Water Pump
Regular price $399.95 USDSale price $399.95 USD Regular priceUnit price / per -
Mopar 68218057AC ATF+4 Transmission Fluid
Regular price $9.82 USDSale price $9.82 USD Regular priceUnit price / per -
D&J Precision Machine 03-05 Dodge Cummins Billet Valve Cover
Regular price $695.99 USDSale price $695.99 USD Regular priceUnit price / per -
Kingspeed Billet Front Cover 03+
Regular price From $459.99 USDSale price From $459.99 USD Regular priceUnit price / per$475.00 USDSale -
Kingspeed Stainless Valve Cover Hardware
Regular price $100.00 USDSale price $100.00 USD Regular priceUnit price / per$125.00 USDSale -
Kingspeed Billet Fuel Pump Blockoff Plate W/ -10AN Male Fitting
Regular price $99.00 USDSale price $99.00 USD Regular priceUnit price / per$125.00 USDSale -
Mopar Mopar 4874464AB Manual Transmission Lubricant - Quart
Regular price $37.12 USDSale price $37.12 USD Regular priceUnit price / per -
Mopar 03-07 Dodge 5.9L Cummins Injector Fuel Return Line
5.0 / 5.0
(1) 1 total reviews
Regular price $255.15 USDSale price $255.15 USD Regular priceUnit price / per -
Kingspeed 5.9L Cummins Grid Heater Delete
Regular price $89.99 USDSale price $89.99 USD Regular priceUnit price / per$105.00 USDSale -
Banks Power 750 Watt Heat Upgrade Kit – Monster-Ram Intake Cold-Start Upgrade
Regular price $138.00 USDSale price $138.00 USD Regular priceUnit price / per -
Exergy Performance 2003-2007 5.9L Cummins Pressure Relief Valve – M14x1.5 Outlet
5.0 / 5.0
(2) 2 total reviews
Regular price From $240.00 USDSale price From $240.00 USD Regular priceUnit price / per -
Hot Shot's Secret Adrenaline® R82+ Diesel Racing Fuel Additive – 32oz
Regular price $34.99 USDSale price $34.99 USD Regular priceUnit price / per
2003-2004 5.9L 24V Cummins Engine & Performance
Unlock Maximum Power with Engine & Performance Parts for Your 2003-2004 5.9L Cummins
Boost your truck's power, efficiency, and reliability with high-performance engine parts and accessories for the 2003-2004 5.9L 24V Cummins. Whether you need turbochargers, intake systems, or fuel system upgrades, we offer premium components from top brands like Banks, Fleece Performance, and H&S Motorsports to enhance your engine's capabilities.
High-Performance Engine Components for 5.9L Cummins
Our engine performance parts are designed to increase horsepower, torque, and overall engine efficiency. From upgraded fuel systems to custom tuning and turbocharger parts, these components ensure your truck is ready for heavy-duty use or high-performance applications.
Why Choose Our Engine & Performance Parts?
Upgrading your engine with the right performance parts ensures better power delivery, improved fuel economy, and enhanced towing capacity. These products are engineered for durability and optimal performance under the toughest conditions.
Key Features:
- Increased Power: Boosts horsepower and torque for superior engine performance.
- Enhanced Efficiency: Improves fuel economy and overall engine performance.
- Durability: Built to withstand heavy-duty use and extreme driving conditions.


















