HIGH-OUTPUT 6.7L CUMMINS® TURBO DIESEL I6 ENGINE 🡫
For maximum towing strength, the available High-Output 6.7-liter Cummins Turbo Diesel inline-six engine is the top choice in the 2026 Ram 3500 lineup. This engine produces 420 horsepower and an industry-leading 1,075 lb-ft of torque. That massive torque output is designed for heavy fifth-wheel and gooseneck towing, making it ideal for commercial trailers, large equipment, and agricultural applications.
This high-output diesel is paired with a heavy-duty automatic transmission built to manage extreme loads. When properly equipped, this powertrain enables the Ram 3500 to achieve a maximum fifth-wheel towing capacity of up to 37,090 pounds. An available diesel exhaust brake helps maintain control on downhill grades by reducing brake wear and improving overall towing confidence.
- 420 horsepower
- 1,075 lb-ft of torque
- Heavy-duty automatic transmission
- Available diesel exhaust brake
- Maximum fifth-wheel towing up to 37,090 pounds when properly equipped
New Vehicle Specials
6.4L HEMI® V8 ENGINE🡫
The standard engine for the 2026 Ram 3500 is the proven 6.4-liter HEMI V8 gasoline engine. This powerplant delivers 410 horsepower and 429 lb-ft of torque, offering strong acceleration and dependable performance for a wide range of work tasks. It is well suited for drivers who need heavy-duty capability but do not require the extreme towing limits of the high-output diesel.
Paired with a heavy-duty automatic transmission, the 6.4L HEMI V8 supports solid towing and payload ratings while offering a lower initial cost compared to diesel options. This engine is a practical choice for contractors, fleet operators, and truck owners who want reliable power for trailers, job site equipment, and daily use.
- 410 horsepower
- 429 lb-ft of torque
- Heavy-duty automatic transmission
- Strong towing capability for work trailers
- Standard engine on Ram 3500 models
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