James River Chrysler Dodge Jeep RAM
Built for heavy work and serious towing, the 2026 Ram 2500 pairs two distinct engines with the muscle to match. The standard 6.4L HEMI® V8 engine delivers dependable gas power, while the available 6.7L Cummins® turbo diesel inline six-cylinder (I6) engine turns up the torque for the heaviest loads. For a wider look at standard features and available packages, see our Ram 2500 review, and compare equipment across the lineup in our Ram 2500 trims guide. Get the full engine specs, towing capacity, and payload ratings with this engine and towing guide from the team at James River Chrysler Dodge Jeep RAM.
When you are ready to put that capability to work, browse our inventory to find a 2026 Ram 2500 with the engine and configuration you need. Check our current lease and finance offers to help fit one into your budget. If you have any questions, contact us online or call James River CDJR at (417) 275-2485, then visit our Ram dealership in Ozark, MO.
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Two distinct engines define the 2026 Ram 2500 lineup, each suited to a different kind of driver. The standard 6.4L HEMI V8 engine is the gas workhorse, ready for everyday hauling and towing across every trim. The available 6.7L Cummins turbo diesel I6 engine trades gas for diesel torque and the muscle to move the heaviest loads.
View the following engine specifications for more information.
| Engine | 6.4L HEMI V8 | High-output 6.7L Cummins turbo diesel I6 |
|---|---|---|
| Horsepower | 405 HP | 430 HP |
| Torque | 429 lb.-ft. | 1,075 lb.-ft. |
| Drivetrain | 4×2 / 4×4 | 4×2 / 4×4 |
| Transmission | Eight-speed automatic | TorqueFlite HD eight-speed automatic |
Pulling a loaded gooseneck or a fifth-wheel camper is where the 2026 Ram 2500 earns its keep, with up to 20,000 pounds of towing capacity when properly equipped. That peak rating comes from the available 6.7L Cummins turbo diesel I6 engine, paired with the right cab, bed, and axle configuration. The standard 6.4L HEMI V8 engine handles the heaviest payloads, carrying up to 4,580 pounds when properly equipped. Towing and payload figures shift with cab style, bed length, drivetrain, and axle ratio, so the numbers below show what each setup can handle.
View the following towing and payload specifications for more information.
| Configuration | 6.4L HEMI V8 w/ 3.73 axle ratio | 6.4L HEMI V8 w/ optional 4.10 axle ratio | High-output 6.7L Cummins I6 w/ 3.42 axle ratio |
|---|---|---|---|
| Regular cab w/ 8-ft. bed (4×2/4×4) | 15,540 / 15,240 lbs. | 17,740 / 17,440 lbs. | – / 19,930 lbs. |
| Crew cab w/ 6-ft. 4-in. bed (4×2/4×4) | 15,220 / 14,930 lbs. | 17,420 / 17,130 lbs. | 19,960 / 19,890 lbs. |
| Crew cab w/ 8-ft. bed (4×2/4×4) | 15,080 / 14,730 lbs. | 17,280 / 16,930 lbs. | 20,000 / 18,230 lbs. |
| Mega Cab® w/ 6-ft. 4-in. bed (4×2/4×4) | – | – | – / 15,710 lbs. |
| Configuration | 6.4L HEMI V8 | High-output 6.7L Cummins I6 |
|---|---|---|
| Regular cab w/ 8-ft. bed (4×2/4×4) | 3,930 / 4,580 lbs. | – / 3,590 lbs. |
| Crew cab w/ 6-ft. 4-in. bed (4×2/4×4) | 3,610 / 3,320 lbs. | 3,600 / 3,300 lbs. |
| Crew cab w/ 8-ft. bed (4×2/4×4) | 3,470 / 4,010 lbs. | 3,500 / 3,160 lbs. |
| Mega Cab w/ 6-ft. 4-in. bed (4×2/4×4) | – | – / 2,900 lbs. |
Matching an engine to your workload is simple across the 2026 Ram 2500 lineup. The standard gas V8 powers every trim, while the available turbo diesel reaches most of the range, with the off-road Power Wagon® as the lone exception. Most trims pair with either a 4×2 or 4×4 drivetrain, and the off-road-focused trims come standard with 4×4.
View the following engine availability for more information.
| Trim | 6.4L HEMI V8 | High-output 6.7L Cummins turbo diesel I6 |
|---|---|---|
| Tradesman® | ✓ | ✓ |
| Black Express | ✓ | ✓ |
| Big Horn® | ✓ | ✓ |
| Warlock | ✓ | ✓ |
| Laramie® | ✓ | ✓ |
| Rebel® | ✓ | ✓ |
| Power Wagon | ✓ | |
| Limited | ✓ | ✓ |
| Limited Longhorn® | ✓ | ✓ |
Looking to put a 2026 Ram 2500 to work? Browse our current inventory to see which engines and configurations are available now at James River CDJR. Whether you need standard gas power or the available diesel torque, our team can help you find the right match. Have any questions? Reach us online or call (417) 275-2485, then stop by our Ram dealership in Ozark, MO.
