The 2026 Ram 2500 delivers serious capability with a range of configurations designed to meet every hauling and towing demand. Whether you’re evaluating the 6.4L HEMI V8 or the powerhouse 6.7L Cummins HO Turbo Diesel, understanding the truck’s complete dimensions and specifications is essential to finding the right fit for your work or lifestyle. In this guide, we break down wheelbase options, bed sizes, fuel capacity, GVWR ratings, axle ratios, and engine performance—plus what’s new for 2026.
Ram continues to refine the 2500 lineup with incremental improvements that keep it competitive in the heavy-duty segment. Read on to discover all the technical details, compare configurations, and see how 2026 changes stack up against 2025.
What are the dimensions of the 2026 Ram 2500?
The 2026 Ram 2500 offers multiple wheelbase configurations to suit different body styles and purposes. Wheelbase length directly affects cab-to-axle distance and overall maneuverability, making it a critical factor when selecting your ideal configuration.
| Cab Style | Bed Length | Wheelbase |
|---|---|---|
| Regular Cab | 8′ | 140″ |
| Crew Cab | 6’4″ | 149″ |
| Crew Cab | 8′ | 169″ |
| Mega Cab | 6’4″ | 160″ |
These wheelbase measurements provide flexibility across work and personal use scenarios. The 140″ Regular Cab is ideal for service vehicles and tight jobsites, while the 169″ Crew Cab 8′ configuration offers maximum cargo space without excessive overall length.
What is the bed size on the Ram 2500?
Ram 2500 buyers can choose between two bed lengths: 6’4″ and 8’0″. Bed selection impacts overall truck length, maneuverability in parking, and cargo capacity. The 8′ bed provides maximum hauling volume for materials and equipment, while the 6’4″ option balances payload space with easier parking and towing dynamics.
When paired with Crew Cab styling and modern amenities, the 6’4″ bed strikes an excellent balance for contractors and personal truck enthusiasts who want a comfortable interior without sacrificing too much cargo real estate. The 8′ option is available across all cab styles except the Mega Cab, which limits bed to 6’4″.
What is the fuel tank capacity of the Ram 2500?
The 2026 Ram 2500 is available with a 31-gallon fuel tank on select configurations, while Crew Cab models typically feature a 32-gallon tank as standard. This generous capacity extends your range between fill-ups—critical for remote jobsites or long-haul towing.
Combined with the HEMI V8’s or Cummins diesel’s efficiency, these fuel tanks allow you to work or travel all day without stopping for fuel. For extended trips or operations in areas with limited fuel availability, the extra gallon in Crew Cab models provides valuable peace of mind.
What axle ratios are available on the 2026 Ram 2500?
Axle ratio selection is crucial for balancing acceleration, towing capability, and fuel economy. The 2026 Ram 2500 offers strategically chosen ratios depending on engine and package selection.
| Engine Option | Standard Ratio | Available Ratio |
|---|---|---|
| 6.4L HEMI V8 | 3.73 | 4.10 |
| 6.7L Cummins HO Turbo Diesel | 3.42 | 4.10 |
| Power Wagon (Special Package) | 4.10 | — |
The 3.73 ratio on HEMI models provides a solid middle ground between towing and highway efficiency. The lower 3.42 ratio on Cummins diesel trucks supports maximum towing capacity while the diesel’s torque keeps RPMs manageable on the highway. The 4.10 option available on both gas and diesel engines offers quicker acceleration and superior towing performance for heavy loads, though with slightly reduced fuel economy.
How much does the 2026 Ram 2500 weigh?
The 2026 Ram 2500 offers multiple GVWR (Gross Vehicle Weight Rating) options to accommodate different configurations and weight distributions. GVWR is the maximum total weight of the truck plus cargo, and selecting the correct rating ensures safe, legal operation.
| Engine / Package | GVWR Options (lbs) |
|---|---|
| 6.4L HEMI V8 | 9,900 / 10,000 / 11,040 |
| 6.7L Cummins HO Turbo Diesel | 10,000 / 10,190 / 11,040 |
| Power Wagon | 8,565 |
Higher GVWR ratings enable you to carry more load without overloading the truck’s frame and suspension. The Cummins diesel engine supports slightly higher GVWR options due to its added weight and load capacity, while the Power Wagon’s specialized suspension and undercarriage construction results in a lower GVWR. Your specific cab, bed, and equipment package will determine which GVWR rating you receive.
Key Takeaways
- Ram 2500 wheelbase ranges from 140″ (Regular Cab 8′) to 169″ (Crew Cab 8′), with Mega Cab at 160″.
- Choose between 6’4″ and 8’0″ bed lengths depending on cargo needs and parking maneuverability.
- Fuel tank capacity is 31–32 gallons, with Crew Cab models typically at 32 gallons for extended range.
- Standard axle ratios: 3.73 (HEMI) and 3.42 (Cummins); 4.10 available on both for enhanced towing.
- GVWR ratings reach 11,040 lbs on gasoline and diesel models, supporting serious payload capacity.
- Six engine and powertrain combinations deliver 405 hp (HEMI) or 430 hp (Cummins) for diverse hauling and towing tasks.
What’s new on the 2026 Ram 2500 vs 2025?
The 2026 Ram 2500 introduces meaningful updates while maintaining the core architecture that truck owners trust. Below is a complete breakdown of changes and new features for the model year.
| Feature / Specification | 2025 | 2026 | Change |
|---|---|---|---|
| Cummins HO Engine | 420 hp | 430 hp | +10 hp |
| Black Express Package | — | New on Tradesman | NEW |
| Base MSRP | — | +$810–$1,445 | Increase |
| Cummins Option Cost | $12,595 | $12,995 | +$400 |
| Destination Charge | $2,095 | $2,595 | +$500 |
| Trim Lineup | Tradesman, Power Wagon, Big Horn, Laramie, Longhorn | Tradesman, Power Wagon, Big Horn, Laramie, Longhorn | Unchanged |
| Cab / Bed Configurations | 6 options | 6 options | Unchanged |
The headline 2026 change is a 10 hp bump on the legendary 6.7L Cummins diesel—now delivering 430 hp and maintaining its best-in-class 1,075 lb-ft of torque. This power increase pairs beautifully with the truck’s towing and payload capabilities. For more details on towing capacity and payload ratings, visit our complete towing and payload guide.
A fresh Black Express package debuts on the Tradesman trim, offering a modern aesthetic with darkened accents for value-conscious buyers. Pricing adjustments reflect a $400 Cummins upcharge and a $500 destination fee increase, while base MSRP climbs $810–$1,445 depending on configuration. These increases align with industry inflation and new feature content.
2026 Ram 2500 Engine Specifications
| Engine | Horsepower | Torque (lb-ft) | Transmission |
|---|---|---|---|
| 6.4L HEMI V8 | 405 hp | 429 lb-ft | 8-speed Auto |
| 6.7L Cummins HO Turbo Diesel | 430 hp | 1,075 lb-ft | TorqueFlite HD 8-speed |
Maximum Towing and Payload Capacity
| Engine | Max Towing (lbs) | Max Payload (lbs) |
|---|---|---|
| 6.4L HEMI V8 | 17,740 | 4,580 |
| 6.7L Cummins HO Turbo Diesel | 20,000 | 3,600 |
Frequently Asked Questions
Which axle ratio should I choose for towing? +
For maximum towing performance, the 4.10 axle ratio is ideal. It provides quicker acceleration off the line and helps maintain highway speed while hauling heavy loads. The Cummins diesel with a 4.10 ratio excels at towing up to 20,000 lbs. If you prioritize fuel economy and moderate towing (under 15,000 lbs), the standard 3.73 (HEMI) or 3.42 (Cummins) ratios are excellent choices.
Can I fit a fifth wheel or gooseneck trailer on a Crew Cab 8-foot bed? +
The Crew Cab 8-foot bed (169″ wheelbase) provides the space needed for fifth wheel and gooseneck trailers. The longer wheelbase and bed length reduce the risk of trailer overhang and improve stability. For additional towing and hauling guidance specific to your project, check our towing capacity breakdown.
What’s the real-world fuel economy for the Cummins diesel? +
Real-world fuel economy depends heavily on driving conditions, load, and axle ratio. Most Cummins owners report 20–24 mpg highway on empty, and 15–18 mpg combined with mixed driving. With a 4.10 axle and heavy towing, expect 12–16 mpg depending on trailer weight and terrain. The 32-gallon fuel tank and diesel efficiency make long trips between fill-ups very feasible.
What GVWR rating do I need for my work truck? +
GVWR selection depends on your truck’s curb weight plus the cargo and passengers you carry. For example, if your truck weighs 6,500 lbs and you load 2,000 lbs of tools and materials plus 500 lbs of passengers, you need at least a 9,000 lbs GVWR. The Cummins diesel’s higher GVWR options (up to 11,040 lbs) provide extra margin for heavily equipped work trucks. Always verify exact specifications with your dealer.
Ready to Find Your Perfect 2026 Ram 2500?
The 2026 Ram 2500 delivers power, flexibility, and durability across a complete range of configurations. Whether you prioritize the aggressive HEMI V8, the legendary Cummins diesel, or the specialized Power Wagon platform, understanding dimensions, weights, and specifications ensures you select the right truck for your needs.
At Beadle’s Chrysler Center in Bowdle, South Dakota, our team is ready to guide you through every spec, walk you around our inventory, and help you configure the exact 2500 that matches your vision. We offer competitive pricing, flexible financing, and post-sale support that keeps your truck running strong.
For a deeper dive into Ram’s heavy-duty lineup, visit our 2026 Ram 2500 complete guide to explore pricing, trims, features, and more.
About the Author
Lexy Tabbert — Beadle’s Chrysler Center, Bowdle, SD
Lexy Tabbert is the Director of Sales and Marketing at Beadle’s Chrysler Center in Bowdle, South Dakota. She covers Ram, Jeep, Dodge, and Chrysler vehicles — helping buyers across the region find the right truck and configuration for their needs. Learn more about Lexy.
