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Parts & Accessories For 2003-2004 Dodge Trucks with 5.9 Diesel Engines
For 2003, the Dodge Ram 2500/3500 trucks received some significant updates. The exterior received a slight refresh, keeping the familiar big-rig styling, but with a new grill and headlights to update the look. Possibly the biggest change to the 5.9L 24 valve was the switch to an electronically controlled common-rail fuel system. Shop XDP for a large selection of stock replacement and upgraded aftermarket parts to help restore or upgrade your 2003-2004 Dodge Ram 2500/3500.

Videos for 2003-2004 Dodge Ram Trucks with 5.9L Diesel Engines



In 2003, the third generation of Dodge diesel trucks were introduced. These Dodge Ram trucks received some major upgrades including new body styles, driveline components, and the state-of-the-art common-rail 5.9L. Dodge continued to incorporate a big-rig style appearance on the 3rd generation trucks, while updating the grille and headlights for a slightly more modern look. To increase the durability of the Dodge Ram pickups, the Dana Corp axles were replaced by AAM front and rear axles. As EPA emissions standards started increasing and the battle between diesel manufacturers for highest horsepower and torque continued, Dodge needed to make some changes to the 5.9L diesel. The 24-valve 5.9L switched from the VP44 injection pump to an electronically controlled common-rail fuel system that lowered emissions, provided more accurate fueling, and improved overall performance and reliability.

The common-rail 5.9L engine block was cast in a stronger gray-iron, with reinforced rails and a stiffener plate to handle the increased power. Inside this engine were the same cast-aluminum pistons and forged-steel connecting rods as the previous generation 5.9 diesel. Utilizing a common-rail fuel injection system was the key to lower emissions and significantly boosting horsepower and torque. The common-rail fuel injection system uses a lift pump to send fuel to the CP3 injection pump, then sends the fuel to be pressurized in the "common" fuel rail and distributed to the electronic injectors. Paired with the CP3 injection pump are Bosch solenoid-activated electronic fuel injectors. This fixed-geometry turbocharger featured a mechanically actuated internal wastegate instead of the external wastegate used on previous models.

Coupled with the Common-Rail 5.9L 24-valve were the 48RE 4-speed automatic transmission with overdrive and the NV5600 6-speed manual transmission that provided an extra boost in horsepower and torque. From 2003-2004 the 5.9L diesel with the automatic transmission was rated at 235 hp and 460 lb-ft of torque. When paired with a manual transmission the 5.9L was rated at 305 hp and 555 lb-ft of torque. With the newly featured electronics in the common-rail 5.9L 24-Valve adding Chips, Modules, and Programmers can help significantly increase horsepower and torque. The 5.9L 24 valve has earned a reputation for million-mile longevity, as a result XDP supplies parts from many aftermarket manufacturers continue to support it with a wide range of stock replacement and performance parts. Maintain factory performance and function of your 5.9L 24-valve with high-quality Oil Filters, Transmission Filters, Fuel Filters, and more from XDP. Boost the engine performance in your truck with Upgraded Fuel Injectors, Turbo Upgrades, and Fuel Lift Pumps. XDP is your one-stop-shop for everything your 2003-2004 Dodge 5.9L 24V Diesel needs.