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03 04 Ram

2003-2004 DODGE RAM 5.9L CUMMINS

The 03-04 5.9L Common Rail Cummins debuted in 2003 and continued through mid-2004. To easily identify the 03-04 motor there is a white label on the driver side of the valve cover that has engine specs, there is a line that states engine horsepower and it will read 305hp (if it reads 325hp, it is a 04.5-07 H.O. Cummins motor). This 03-04 Common Rail Cummins was the first of its kind, upgrading to a bigger turbo, high-pressure common rail injection system, CP3 injection pump that pushes up to 24,000psi, and feeds into a new style Bosch injector. The whole motor and control system is ran off a CAN bus system which means everything communicates with each other through micro controllers.  The CP3 injection pump runs off a gear within the timing cover but it is completely regulated by electronics which feeds a Bosch injector that is individually regulated by solenoids. This all seems pretty complex but it opened the doors for refined tuning. One of the main issues with the 03-04 Cummins trucks is a result of improper fuel filtration and lift pump failure which can be fixed by adding a Fass or an AirDog lift pump.  Like in earlier years, the 03-04 Dodge truck still had front suspension/steering issues with the Y-style steering linkage which can create death wobble under load or acceleration. The 03-04 Cummins is equipped with a 48re transmission which are great transmissions, they are just built weak from the factory. An upgraded transmission rebuild kit or crate transmission and torque converter will make these transmissions near bulletproof. Also, the 03-04 Dodge truck could have been equipped with a NV5600 manual transmission.

AIR INTAKE CATEGORY 11-16LML

Air Intakes/Intercoolers

AIR INTAKE CATEGORY 11-16LML

DPF Upgrade Packages

AIR INTAKE CATEGORY 11-16LML

PCV Re-Route

AIR INTAKE CATEGORY 11-16LML

Differential

AIR INTAKE CATEGORY 11-16LML

OEM Maintenance

AIR INTAKE CATEGORY 11-16LML

Bumpers

AIR INTAKE CATEGORY 11-16LML

Fender Flares

AIR INTAKE CATEGORY 11-16LML

Fuel Tanks

AIR INTAKE CATEGORY 11-16LML

Air Compressors

AIR INTAKE CATEGORY 11-16LML

Tailgates

AIR INTAKE CATEGORY 11-16LML

Exterior Appearance

AIR INTAKE CATEGORY 11-16LML

Floor Mats

AIR INTAKE CATEGORY 11-16LML

Interior Apperance

AIR INTAKE CATEGORY 11-16LML

Lug Nuts

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Tuners | Chips | Monitors

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Fuel Systems | Injectors | Pumps

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Power Packages

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Engine Components

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Crate Engines

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Bed Covers & Accesories

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Window Shades & Visors

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Winches

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Headache Racks

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Bug Deflectors

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Wheel Well Liners

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Seats & Covers

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Lighting

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Wheel Spacers-Adapters

DIAMOND EYE PERFORMANCE, EXHAUST SYSTEM

Exhaust | Mufflers | Tips

AIR INTAKE CATEGORY 11-16LML

Lift Pumps

AIR INTAKE CATEGORY 11-16LML

Transmissions

AIR INTAKE CATEGORY 11-16LML

Water Meth | Nitrous

AIR INTAKE CATEGORY 11-16LML

Suspension, Lifts & Steering

AIR INTAKE CATEGORY 11-16LML

Brakes

AIR INTAKE CATEGORY 11-16LML

Hitches & Towing

AIR INTAKE CATEGORY 11-16LML

Roof, Ski & Cargo Racks

AIR INTAKE CATEGORY 11-16LML

Mud Flaps

AIR INTAKE CATEGORY 11-16LML

Paint Protection Film

AIR INTAKE CATEGORY 11-16LML

Gauges & Pods

AIR INTAKE CATEGORY 11-16LML

Tools & Storage

AIR INTAKE CATEGORY 11-16LML

Wheels

AIR INTAKE CATEGORY 11-16LML

TPMS Sensors

AIR INTAKE CATEGORY 11-16LML

EGR Solutions/Upgrades

AIR INTAKE CATEGORY 11-16LML

Injectors

AIR INTAKE CATEGORY 11-16LML

Turbos | Superchargers

AIR INTAKE CATEGORY 11-16LML

Cooling System

AIR INTAKE CATEGORY 11-16LML

Nerfs Bars, Steps and Running Boards

AIR INTAKE CATEGORY 11-16LML

Grilles

AIR INTAKE CATEGORY 11-16LML

Grill Guards & Bull Bars

AIR INTAKE CATEGORY 11-16LML

Horns

AIR INTAKE CATEGORY 11-16LML

Hoods

AIR INTAKE CATEGORY 11-16LML

Offroad Accessories

AIR INTAKE CATEGORY 11-16LML

Switches & Outlets

AIR INTAKE CATEGORY 11-16LML

Safety Gear

AIR INTAKE CATEGORY 11-16LML

Tires

AIR INTAKE CATEGORY 11-16LML

Wheel Accessories