Chesrown CDJR of Sidney
In the world of heavy-duty trucks, torque is the only number that truly matters. For Sidney, Ohio, farmers and fleet operators, the 2026 Ram 3500 with the available 6.7L High Output (HO) Cummins® Turbo Diesel I-6 is the undisputed king of the job site.
While the standard gas engine is capable, the HO Cummins is a dedicated commercial grade powerhouse designed for one specific purpose: moving massive loads without breaking a sweat. This guide breaks down the engineering behind the 2026 High Output engine and the all-new 8-speed transmission that puts that power to the ground.
The 6.7L High Output Cummins is an upgraded version of the standard diesel, reinforced to handle significantly higher stress levels. It utilizes a compacted graphite iron (CGI) block, which is lighter and stronger than traditional cast iron, allowing for higher cylinder pressures.
What this means for you: Peak torque arrives low in the rev range (1,800 rpm). When you are pulling a 30,000-lb trailer up a grade on I-75, the engine does not need to scream at the redline. It simply leans into that massive torque reserve and pulls.
For years, the High Output engine was paired with a 6-speed transmission. For 2026, Ram has revolutionized the powertrain by mating the HO Cummins to the ZF TorqueFlite HD 8AP1075 8-speed automatic transmission.
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This is a critical upgrade for Sidney drivers. The jump from 6 to 8 gears provides:
Better Towing Performance: Smaller steps between gears mean the engine stays in its “sweet spot” (1,800–2,800 rpm) more often while towing heavy loads. Improved Efficiency: Two overdrive gears (7th and 8th) lower engine RPMs during highway cruising, reducing fuel consumption and cabin noise. Smoother Shifts: The ZF architecture is renowned for seamless shifting, reducing the “jerk” often felt in heavy-duty transmissions when under load. |
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Is the High Output worth the upgrade? If your daily duties involve towing near the max capacity, the answer is yes.
| Feature | Standard Output Cummins | High Output Cummins |
|---|---|---|
| Torque | 850 lb-ft | 1,075 lb-ft |
| Horsepower | 370 hp | 430 hp |
| Max Towing | 22,660 lbs | 36,710 lbs |
| Transmission | 8-Speed Auto | 8-Speed HD Auto |
| Note: The High Output engine is exclusively available on Ram 3500 models and cannot be ordered on the 2500. | ||
Generating 1,075 lb-ft of torque creates immense heat. The 2026 Ram 3500 HO manages this with a robust cooling system featuring a 23.8-quart coolant capacity.
The system includes a variable-geometry turbocharger that not only boosts power but acts as an exhaust brake. This “smart diesel” technology helps control descent speeds on steep grades, saving your service brakes for when you really need them.
Numbers on a page tell part of the story, but feeling 1,075 lb-ft of torque pin you to the seat is a different experience. Whether you are hauling livestock from Wapakoneta or heavy machinery through Sidney, the 2026 Ram 3500 HO is built to handle it.