2004 Dodge Ram 2500 5.7 Hemi: Specs & More

Nov 16, 2025 by Alex Braham 43 views

2004 Dodge Ram 2500 5.7 Hemi: Specs, Performance, and Features

Hey guys! If you're here, you're probably curious about the 2004 Dodge Ram 2500 with the legendary 5.7 Hemi engine. This truck is a classic, known for its powerful engine, robust build, and all-around reliability. Today, we're diving deep into the 2004 Dodge Ram 2500 5.7 Hemi specs, covering everything from engine performance to towing capabilities, and even touching on some common issues and upgrades. So, buckle up, and let's get into it!

Unveiling the 2004 Dodge Ram 2500 5.7 Hemi Engine: Power and Performance

Alright, let's kick things off with the heart of the beast: the 5.7-liter Hemi engine. This engine was a game-changer for Dodge, bringing back the Hemi name and delivering a level of performance that was seriously impressive back in 2004. The 5.7L Hemi in the 2004 Dodge Ram 2500 produced around 345 horsepower and 375 lb-ft of torque. That's a serious amount of grunt, providing plenty of power for daily driving, hauling loads, and tackling tough terrains. The engine's design, featuring hemispherical combustion chambers, contributed to its high power output and efficiency, setting it apart from other engines in its class. It delivered a strong mid-range and top-end performance, which made it a favorite among truck enthusiasts. The Hemi's introduction in the Ram 2500 significantly boosted the truck's appeal, positioning it as a top contender in the heavy-duty pickup market. The combination of its powerful engine and the truck's robust build made it a go-to choice for those needing a workhorse. Compared to previous engine options, the Hemi was a step up in terms of both power and refinement, offering a smoother and more responsive driving experience. The engine's advancements also led to improved fuel efficiency. The 5.7 Hemi's popularity wasn't just about its impressive figures; it was also about the overall driving experience. The sound of the engine, the acceleration, and the feeling of power on tap all added to the truck's allure, making it enjoyable to drive. The durability of the engine also played a role in its reputation; it was built to last, making it a reliable choice for truck owners. The engine's design also allowed for various modifications, making it easy for owners to upgrade and personalize their trucks. This adaptability further cemented the Hemi's popularity among truck enthusiasts. The Hemi engine remains a significant point in the history of Dodge, and it is a popular engine choice for anyone needing power and reliability.

Detailed Engine Specifications

To give you a better idea, here's a detailed look at the 5.7 Hemi engine's specifications for the 2004 Dodge Ram 2500:

Engine Type: 5.7-liter (345 cubic inches) V8
Horsepower: 345 hp @ 5,400 rpm
Torque: 375 lb-ft @ 4,200 rpm
Bore x Stroke: 3.91 in x 3.58 in (99.3 mm x 91 mm)
Compression Ratio: 9.6:1
Fuel System: Multi-point fuel injection
Firing Order: 1-8-4-3-6-5-7-2

These specs paint a picture of an engine that's built for power and performance, providing a solid foundation for the Ram 2500's capabilities.

Transmission and Drivetrain Options for the 2004 Dodge Ram 2500 5.7 Hemi

Now, let's talk about how that power gets to the ground. The 2004 Dodge Ram 2500 with the 5.7 Hemi offered a few different transmission and drivetrain options, giving buyers the flexibility to choose a setup that best suited their needs. Understanding these options is key to appreciating the truck's overall capabilities.

Transmission Choices

Automatic Transmission: The most common choice was the 5-speed automatic transmission (5-45RFE). This transmission was known for its smooth shifts and reliability, making it a great match for the Hemi's power. It provided a good balance of performance and fuel efficiency. The 5-speed automatic offered several gear ratios, which improved the truck's acceleration and towing capabilities. It also offered a manual shift mode, allowing drivers to have more control over the transmission. This feature made it easier to manage the truck when towing or driving in challenging conditions. The automatic transmission was designed to handle the high torque output of the Hemi engine, ensuring its long life and consistent performance. The ease of use and the overall refinement of the automatic transmission made it a popular choice among truck buyers. The automatic transmission made the truck easier to drive in various conditions, whether navigating city streets or tackling off-road trails. The smooth gear changes provided a comfortable driving experience, adding to the truck's overall appeal and user-friendliness.
Manual Transmission: A 6-speed manual transmission (NV4500) was also available for those who preferred more control. This option was less common but offered a more engaging driving experience and could be favored by those who enjoy shifting gears. The manual transmission could also provide better fuel efficiency in some driving conditions, making it an attractive option for some buyers. This transmission provided a more direct connection between the driver and the engine. The manual transmission could enhance the overall performance and driving dynamics of the truck. This transmission was popular with those who appreciate mechanical engagement and the sensation of controlling the vehicle's power delivery.

Drivetrain Options

2-Wheel Drive (2WD): This setup was ideal for those who primarily used their trucks for on-road driving, offering better fuel efficiency and a more comfortable ride. 2WD models were often preferred for their ease of maintenance and lower cost. It was a perfect option for city and highway use, where the full capabilities of 4WD weren't necessary.
4-Wheel Drive (4WD): This option was perfect for those needing enhanced traction and off-road capability. The 4WD system usually included a transfer case with high and low range settings, making it suitable for a variety of conditions, from snowy roads to rugged trails. This system allowed the driver to engage 4WD when needed, providing extra grip in challenging conditions. The 4WD system significantly improved the truck's versatility, making it a reliable choice for diverse environments. It enabled the truck to handle slippery surfaces and rough terrains, offering increased safety and control. The 4WD system enhanced the truck's overall appeal for those living in regions with challenging weather conditions or those with a desire to go off-road. The robust 4WD system, coupled with the Hemi's power, made the Ram 2500 a formidable machine in various conditions.

The combination of transmission and drivetrain options gave buyers the flexibility to tailor their 2004 Dodge Ram 2500 to their specific needs and preferences. Whether it was the smooth efficiency of the automatic transmission paired with 2WD for everyday driving or the rugged capability of the manual transmission with 4WD for work and adventure, there was a configuration for everyone.

Towing and Payload Capacity: Putting the 2004 Dodge Ram 2500 5.7 Hemi to Work

One of the main reasons people buy heavy-duty trucks is for their towing and payload capabilities, and the 2004 Dodge Ram 2500 5.7 Hemi doesn't disappoint. The Hemi engine, combined with a robust chassis and suspension, provides impressive numbers that make it a capable workhorse.

Towing Capacity

The towing capacity for a properly equipped 2004 Dodge Ram 2500 with the 5.7 Hemi could range up to approximately 10,600 pounds (4,808 kg), depending on the configuration (e.g., cab style, transmission, and rear axle ratio). This is enough to haul a good-sized trailer, boat, or camper. The Hemi engine's high torque output at low rpm made it ideal for towing heavy loads, ensuring the truck had plenty of pulling power. The robust design of the Ram 2500's chassis further enhanced its towing capacity. The combination of a powerful engine, a strong chassis, and proper equipment made this truck a reliable tool for various towing tasks. The impressive towing capacity made the Ram 2500 a favorite among those who needed a dependable truck for work or recreation. The ability to tow such significant weight meant the truck could handle a wide variety of hauling needs. The generous towing capacity of this truck has made it a favorite among many drivers over the years.

Payload Capacity

The payload capacity, which is the maximum weight the truck can carry in the bed, usually ranged up to about 3,000 pounds (1,361 kg). This figure includes passengers and cargo. The high payload capacity made the truck suitable for hauling various materials, equipment, and other goods. The solid construction of the Ram 2500, combined with its powerful engine, made it a reliable choice for handling heavy loads. The combination of towing and payload capacities made the 2004 Dodge Ram 2500 a versatile option for both work and personal use. This allowed owners to carry heavy items in the bed without compromising performance. It makes the truck great for construction, landscaping, and other industries where carrying heavy materials is a must. The payload capacity of the Ram 2500 is something that really makes it a heavy hitter in the truck world.

It's important to always check the specific payload and towing ratings for your truck, as they can vary based on the exact configuration and any aftermarket modifications. Always adhere to these limits to ensure safe and efficient operation.

Common Issues and Reliability of the 2004 Dodge Ram 2500 5.7 Hemi

No vehicle is perfect, and the 2004 Dodge Ram 2500 with the 5.7 Hemi has a few common issues that owners should be aware of. Knowing these potential problems can help you maintain your truck and keep it running smoothly.

Engine and Powertrain Issues

Spark Plugs: These can foul over time, leading to misfires and reduced performance. Regular replacement is key. Keeping an eye on your spark plugs is crucial for maintaining the engine's performance. The spark plugs are easy to replace, so keeping up with maintenance is simple and affordable. Replacing them regularly ensures the engine fires correctly and runs efficiently. Spark plug failure often leads to engine misfires, reduced fuel economy, and poor acceleration. Regularly check and replace them. Replacing the spark plugs will help keep the engine running smoothly. Make sure to use the right type of spark plugs recommended by Dodge for optimal performance. Replace them as part of your regular maintenance routine to prevent issues. Make sure the spark plugs are properly gapped for best performance.
Water Pump: Water pumps can fail, leading to overheating. Watch for leaks and unusual noises. Water pump failure can cause severe engine damage if not addressed quickly. The water pump ensures coolant circulates throughout the engine to maintain proper operating temperatures. Replacing the water pump when it fails is crucial to prevent overheating and protect your engine. Signs of a failing water pump include coolant leaks, unusual noises, and overheating. Regular inspections can catch potential issues before they cause significant damage. The water pump's job is to keep your engine cool, so if it's not working, it can cause some major problems. Make sure to check it as part of your regular maintenance schedule to avoid any major issues down the road.
Transmission Problems: Some owners have reported issues with the automatic transmission, particularly the 5-45RFE. Issues can range from rough shifting to complete failure. Regular maintenance and proper fluid changes can help. The transmission can experience various issues over time, especially if not maintained properly. Automatic transmissions are complex and require regular fluid and filter changes. Keeping the transmission fluid clean helps prevent wear and tear. If you notice any issues with the transmission, have it checked by a professional to prevent further damage. The transmission's health is critical to the overall performance of the truck. If you start to notice any problems with your transmission, it's best to take it in for inspection as soon as possible. Making sure that the transmission is working properly is important to maintaining the overall performance of the truck.

Upgrades and Modifications for the 2004 Dodge Ram 2500 5.7 Hemi

The 2004 Dodge Ram 2500 with the 5.7 Hemi is a popular platform for modifications and upgrades. The engine's robust design and the truck's overall build make it a great candidate for improvements, whether you're looking for more power, better off-road performance, or enhanced aesthetics.

Performance Upgrades

Cold Air Intake: Improves airflow to the engine, potentially increasing horsepower and fuel efficiency. These can give your engine a nice boost. A cold air intake can increase horsepower, especially with other modifications. Improved airflow will result in a more efficient engine. Cold air intakes can improve the performance of your engine. Installation is typically straightforward. A cold air intake is a good start. By drawing in colder, denser air, your engine can achieve higher performance. This can lead to improved acceleration and overall power. Cold air intakes are a popular upgrade for a reason. Colder air allows for more efficient combustion. This can contribute to increased horsepower and torque.
Cat-Back Exhaust System: Enhances exhaust flow, resulting in improved power and a more aggressive sound. Cat-back exhaust systems are known for their enhanced sound. Upgrading your exhaust can significantly improve performance. Cat-back exhaust systems are popular upgrades for both performance and aesthetics. A cat-back exhaust system can improve engine performance and sound. These systems can free up your engine. A good exhaust system improves the efficiency. Exhaust systems are a great way to improve your truck's performance. The increased exhaust flow can help your engine breathe better and unleash more power. Cat-back exhaust systems are a popular choice. The exhaust system can greatly affect your truck's performance and sound. These systems are designed to improve both the sound and performance of your truck.
Performance Chips/Tuners: These can adjust the engine's computer settings to optimize performance. Performance chips are a great way to unlock your engine's potential. They can fine-tune your engine for optimal performance. Performance chips and tuners can significantly improve the performance. Performance chips can optimize the engine's parameters. They can also improve fuel efficiency. Performance chips are a popular choice. They can significantly increase engine power. Performance chips make it possible to adjust the engine's parameters. They can help optimize power and fuel economy. These upgrades provide some great benefits.

Suspension and Off-Road Upgrades

Lift Kits: Increase ground clearance for off-road adventures. Lift kits give your truck a more aggressive stance. Lift kits provide better ground clearance for off-roading. They can greatly enhance off-road capability. Lift kits come in different heights and styles. Lift kits allow for the use of larger tires. They are available in various sizes and styles. Lift kits are a great way to improve your truck's off-road prowess.
Upgraded Shocks and Struts: Improve ride quality and handling, especially when off-roading. Good shocks can significantly improve ride quality. Upgraded shocks and struts can improve handling. Quality shocks are designed to handle off-road conditions. Shocks can give you a smoother ride. Premium shocks can provide improved handling. Shocks and struts can greatly improve your truck's performance. Upgraded shocks are a must. High-quality shocks and struts can improve the overall driving experience. Upgrading shocks is a good idea. The improved ride quality makes a big difference.
Off-Road Bumpers and Skid Plates: Protect the truck from damage during off-roading. Off-road bumpers and skid plates protect the truck. They are important for off-roading. These are designed to withstand rugged terrains. Skid plates are essential for off-roading. The components shield the truck's undercarriage from damage. These are great for improving your truck's off-road capability. These components are essential for off-roading. They are designed to withstand rugged terrain and protect the truck's vital components. These accessories protect your truck from damage. They provide additional protection from rocks and obstacles.

Exterior and Interior Upgrades

Wheels and Tires: Improve the truck's appearance and off-road capability. Wheels and tires can greatly enhance the truck's appearance. The right wheels and tires can improve both aesthetics and performance. The right tires can significantly improve off-road capability. Consider tires based on your driving needs. These are essential for improving your truck's appearance and off-road capabilities. Selecting the right tires is critical for your driving needs. A great way to customize your truck and tailor its performance to your needs. They can also provide a more comfortable ride. They can enhance the truck's appearance. They come in various sizes and styles.
Bed Liners and Accessories: Protect the truck bed from damage and add functionality. Bed liners and accessories protect the truck bed. They can protect your bed from damage. Bed liners are great for protecting the bed from scratches. Accessories can add functionality and convenience. Bed liners and accessories enhance your truck's utility. Bed liners are essential to protect the bed from wear and tear. Accessories can add convenience and functionality to your truck. The right bed liner can protect your bed. Accessories such as bed covers and toolboxes. Consider bed accessories for your truck. They can enhance both its look and functionality.
Interior Upgrades: Add comfort and style to the cabin. Interior upgrades add comfort and style. They can greatly improve your truck's appearance. Interior upgrades can enhance your driving experience. Upgrading the interior is a great way to customize your truck. Consider new seat covers or updated entertainment systems. Interior upgrades add a touch of personalization to the vehicle. You can upgrade the interior of your truck to make it more comfortable. There are many ways to make it your own. You can personalize your truck by upgrading the interior. Enhance the cabin with these great additions.

When considering upgrades, it's essential to research the options and choose components that are compatible with your truck and meet your specific needs. Make sure you know what will work with your truck before you make any changes. Always do your research to see what works best! You will want to research the upgrade options that are available. Take your time to carefully select components. Check what will work with your truck before you start. Consider these upgrades for your truck.

Conclusion: Is the 2004 Dodge Ram 2500 5.7 Hemi Right for You?

So, is the 2004 Dodge Ram 2500 5.7 Hemi a good choice? Well, it depends on your needs. This truck is a solid choice if you're looking for a heavy-duty pickup with a powerful engine, decent towing capacity, and a classic look. If you need to haul heavy loads, this truck is definitely worth considering. If you're looking for a reliable workhorse or a capable truck for recreational use, the Ram 2500 with the 5.7 Hemi can be a great option. Make sure to consider the potential issues and budget for maintenance. Overall, the 2004 Dodge Ram 2500 5.7 Hemi is a respectable truck. You have to think about its pros and cons. You should also consider your own individual needs. You'll need to weigh the pros and cons to see if it's the right fit for you. Its a classic in the world of trucks. If you want a truck that is strong and looks good, this is the one.

Thanks for hanging out, guys! Hope this breakdown helps! Happy trucking!