2004.5-2007 Ram 2500/3500 Performance Parts and Accessories

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Need More Power?

Need More Power?

Programmers and tuners are the perfect way to unlock hidden horsepower and torque in your truck. By optimizing your engine's performance settings, these tools let you dial in more power for towing, off-roading, or just maximizing throttle response. It’s the easiest way to get serious gains without major modifications.

Looking for clearance for larger tires?

Looking for clearance for larger tires?

Upgrading to larger tires on your Ram 2500/3500 6.7L Cummins instantly boosts off-road performance and gives your truck a bold, aggressive look. To avoid rubbing and suspension issues, a suspension lift or leveling kit is the perfect solution, providing the clearance you need to fit those bigger tires and take your rig to the next level.

Maximize the Power of Your 2004.5-2007 Ram 5.9L Cummins

Get the most out of your 2004.5-2007 Ram 2500/3500 5.9L Cummins with upgrades designed to deliver more horsepower, torque, and efficiency. Boost airflow with intakes, fine-tune your engine’s performance with advanced tuners, and ensure a steady fuel flow with high-quality injection systems. These upgrades ensure that your Cummins remains reliable and powerful, whether you're towing, hauling, or pushing the limits off-road.

Elevate Your 2004.5-2007 Ram for Ultimate Off-Road Capability

Elevate your 2004.5-2007 Ram 2500/3500 5.9L Cummins with suspension upgrades that deliver better handling, improved ground clearance, and a commanding presence. Our range of lift and leveling kits is designed to handle rugged terrain and provide a smooth ride whether on the road or off. With upgraded shocks and suspension components, your Ram will be ready for any adventure.

THE GARAGE

The Garage

Welcome to The Garage – your one-stop shop for all your car care and maintenance needs. From premium oils and filters to top-notch car care products, we have everything you need to keep your vehicle running smoothly and looking its best. Whether you're a DIY enthusiast or a professional mechanic, our carefully curated selection of high-quality products will help you take care of your ride like never before.

2004.5-2007 Ram 5.9L Cummins Parts & Accessories

The 2004.5-2007 Ram 2500/3500 5.9L Cummins is a legendary truck that has stood the test of time as an extremely capable, powerful, and outright awesome trucks. However, there are plenty of ways to enhance performance, utility, and capability out of your 5.9L Ram Cummins with our selection of parts and accessories here at Alligator Performance. We offer everything needed to give your Ram 5.9L Cummins the ability to easily keep up and even surpass modern full-size trucks. We have 5.9L Cummins engine upgrades that will give your Ram 2500/3500 a ton more horsepower and torque so that your 5.9L Cummins can power your way through the trail, heavy towing and daily driving. Our selection of Ram 2500/3500 exterior upgrades will completely upgrade the look and utility of your tough Ram 2500/3500. We offer a huge selection of Ram 5.9L Cummins suspension upgrades like Ram 5.9L Cummins leveling kits and Ram 2500/3500 lift kits that will give your Ram an imposing on and off-road stance that also gives you the clearance to mount up big Ram 2500/ 3500 wheels and tires. Reinforcing your truck with Ram 5.9L Cummins bumpers will give your Ram the protection it needs to confidently tackle tough terrain and mount an incredibly useful winch. Check out our 5.9L Ram parts and accessories to find the upgrades you need to make your Ram one of the toughest trucks around.  Ram Cummins Fitments: 2004, 2005, 2006, 2007 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. 

2004.5-2007 Ram 5.9L Cummins Engine Upgrades

The first stop for most Ram 5.9L Cummins owners is to upgrade their Engine to enhance horsepower, torque and responsiveness with our Ram 5.9L Cummins Engine Upgrades. The 5.9L Cummins Ram 2500/3500 is capable of making huge power with even the most basic performance modifications, and our selection engine upgrades for Ram 5.9L Cummins can make your truck run and feel like new. Our 5.9L Cummins engine upgrades give your truck more horsepower, more torque, and better response all in one place. One of our most effective power upgrades for the 2004.5-2007 Rams is our selection of Ram 5.9L Cummins Tuners & Monitors. These tuning devices come with new software that change key parameters in your Ram's engine management system enabling it to make a ton of added power and torque over the stock tuning. These 5.9L Cummins tunes increase boost pressure, adjust fueling, and change other parts of your ECM's OEM software so that your Ram makes a bunch more horsepower, a huge amount more torque, and adding a ton of throttle response. 

 

While a tuner and aftermarket tunes will give your Ram a ton of power, there are plenty of other options to get more power and efficiency from your truck! Make sure to check out our 5.9L Cummins Cold Air Intakes, a Cold air intake for 5.9L Cummins Rams gives your truck a larger volume of air at a cooler temperature with higher velocities than the restrictive stock air box allows for, which increases performance, efficiency and responsiveness. Ram 5.9L Cummins intakes are also easy to install and come with everything you need to get them up and running on your truck. One of our most popular intake kits for the Ram 5.9L Cummins is the S&B Oiled Intake Kit. S&B's intake features high-quality construction and a highly efficient design in a package that won't break your bank. The S&B intake comes with an oiled high-flow air filter, a complete air box assembly, and a full set of inlet tubing that completely replaces your Ram's OEM intake system and gets you nice gains in power and response.

 

2004.5-2007 Ram 5.9L Cummins S&B Oiled Cold Air Intake Kit

2004.5-2007 Ram 5.9L Cummins Leveling Kits

The factory stance of your 2004.5-2007 Ram 2500/3500 doesn’t reflect the toughness of your truck. A leveling kit will give it the aggressive stance it truly deserves. Our Ram 5.9L Cummins Leveling Kits add just enough front ride height to your 5.9L Cummins Ram to give it a clean, leveled look as well as extra clearance for larger wheel and tire combinations. We have a variety of different Ram 5.9L leveling kits available that range from basic and budget-friendly leveling spacers to complete suspension packages that include performance shocks and other hardware that gives your Ram improved on-road handling and excellent off-road performance. 

2004.5-2007 Ram 5.9L Cummins Lift Kits

A leveling kit is perfect to improve your trucks rake, but if you really want to fully upgrade your suspension to tackle tough trails, handle huge tires and give an excellent ride, our selection of Ram 5.9L Cummins Lift Kits is the way to go! These lift kits overhaul your Ram's suspension system and lifts your ride height on both the front and rear of your truck so that you get the clearance to mount up extremely large wheels and tires on your truck. We have Ram 2500/3500 lift kits in a bunch of different sizes and ride heights so that you can find the perfect look and clearance you need for your choice of tires. We carry lift kits that work with any budget or application, from budget-friendly kits to extremely powerful systems that include shocks, radius arms, 4-link kits, and other hardware so that your Ram 5.9L Cummins gets excellent on-road handling and awesome off-road performance to go along with a big lift. 

2004.5-2007 Ram 5.9L Cummins Wheels & Tires

The 2004.5-2007 Ram 2500/3500s look their very best when they're rocking a set of ultra-tough wheels and some seriously big tires. Alligator Performance has a huge variety of different Ram 5.9L Cummins Wheels and Tires to give your truck an aggressive stance that is sure to turn some heads. We have Ram 5.9L Cummins 17" wheels, Ram 5.9L Cummins 18" wheels, and Ram 5.9L Cummins 20" wheels in a variety of different widths, offsets, backspacings, offsets, styles, designs, and finishes so that you can get the perfect look and feel for your aggressive Ram Cummins build. We also have a great selection of Ram 5.9L Cummins 35" tires and Ram 5.9L Cummins 37" tires which can help give your Ram 5.9L Cummins build a tough look, more ground clearance, and better traction. We have Ram 5.9L Cummins all-terrain tires, Ram 5.9L Cummins hybrid tires, and Ram 5.9L Cummins mud-terrain tires so that you can find the perfect balance of on-road ride quality and off-road traction for your rig.

 

2004.5-2007 Ram 5.9L Cummins Wheels & Tires

FAQs for 2004.5-2007 Ram 2500 & 3500 Cummins

What is the stock horsepower and torque for the 2004.5-2007 Ram 2500/3500 Cummins?

The 5.9L Cummins Turbo Diesel in the 2004.5-2007 models produces 325 horsepower and 610 lb-ft of torque, which offers great performance for towing and heavy-duty applications.

What is the largest wheel and tire combo that can be run at stock height for the 2004.5-2007 Ram 2500/3500?

At stock height, you can fit 33-inch tires on 17- or 18-inch wheels without modifications. If you want to run 35-inch tires, a small lift or leveling kit may be needed to prevent rubbing, especially on 4WD models.

How reliable are the engine and transmission on the 2004.5-2007 Ram 2500/3500 models?

The 5.9L Cummins engine is considered one of the most reliable diesel engines ever produced. The 48RE 4-speed automatic transmission is generally reliable, though it may struggle under heavy towing. The 6-speed manual is highly preferred for towing durability.

What are the fuel economy estimates for the 2004.5-2007 Ram 2500/3500 Cummins?

Drivers typically report 14-20 MPG from the 5.9L Cummins, with the best fuel economy achieved during highway driving with light loads. Towing or city driving tends to reduce MPG to the lower end of that range.

What are the towing capacities for the 2004.5-2007 Ram 2500/3500 Cummins?

What are the towing capacities for the 2004.5-2007 Ram 2500/3500 Cummins?

How easy is it to get more power out of the 5.9L Cummins engine?

The 5.9L Cummins is highly responsive to performance upgrades, and gains of 100+ horsepower can be achieved with tuners, cold air intakes, and exhaust systems. For serious performance boosts, owners often upgrade injectors and turbochargers.

What lift kit options are available for the 2004.5-2007 Ram 2500/3500?

There are numerous lift kits available for this generation, ranging from 2.5-inch leveling kits to 6-8 inch suspension lifts. Popular brands like Carli, ICON, and BDS offer kits that improve both off-road performance and stance.

Are there any known weaknesses in the engine or transmission of the 2004.5-2007 Ram 2500/3500?

The 5.9L Cummins is known for its durability, but the 48RE automatic transmission can suffer from early wear, particularly under heavy towing or if not properly maintained. Many owners upgrade to aftermarket transmission coolers or opt for the manual transmission.

How capable is the 2004.5-2007 Ram 2500/3500 for off-road use?

The 5.9L Cummins models are capable off-road, especially with aftermarket lift kits, off-road tires, and skid plates. While these trucks weren't specifically designed for off-roading, with the right modifications, they can handle rough terrain effectively.

What is the payload capacity for the 2004.5-2007 Ram 2500/3500?

The Ram 3500 has a maximum payload capacity of 4,980 pounds, while the Ram 2500 can handle up to 3,020 pounds, depending on configuration and equipment.