2027 Ram 2500 Performance and Capability: Specs, Towing, and Powertrain Guide
The 2027 Ram 2500 produces 1,075 lb-ft of torque from its available High-Output 6.7L Cummins Turbo Diesel, a best-in-class figure. That torque number beats every rival diesel in the 3/4-ton segment, and the Power Wagon now carries it for the first time. This page covers every performance and capability spec, with inventory available at Johnsons of Kingfisher in Kingfisher, OK.
Performance and Capability Overview
The 2027 Ram 2500 is built around one central premise: more pulling force than any other 3/4-ton pickup on the market. The available 6.7L Cummins High-Output Turbo Diesel I6 delivers 430 horsepower and 1,075 lb-ft of torque, paired with the TorqueFlite HD 8-speed automatic transmission. Those numbers translate directly into a maximum diesel towing rating of 20,000 lbs, and they represent the headline story for every buyer who hauls for a living or for recreation.
The base 6.4L HEMI V8 is no afterthought either. It produces 405 horsepower and 429 lb-ft of torque through the same TorqueFlite HD transmission. With the available Payload Upgrade Package, the HEMI-equipped 2500 reaches a best-in-class gas payload of 4,580 lbs and a maximum gas towing rating of 17,740 lbs. Two serious powertrains, two distinct capability profiles, one truck.
The biggest news for 2027 is the arrival of the Cummins diesel in the Ram 2500 Power Wagon for the first time in the model's history. Buyers who wanted the Power Wagon's off-road hardware previously had to accept a gas engine. That choice is now gone.
2027 Ram 2500 full specs and trims
How the Powertrain Delivers Its Numbers
The 6.7L Cummins HO Turbo Diesel is an inline-six with compacted graphite iron block construction, a 16.2:1 compression ratio, and electronic high-pressure common rail fuel injection. Peak torque of 1,075 lb-ft arrives at just 1,800 rpm, meaning the engine is already deep into its pull before most drivers have fully pressed the throttle. Peak horsepower of 430 arrives at 2,800 rpm, keeping the power curve usable across the full operating range rather than peaking only at high engine speeds.
The TorqueFlite HD 8-speed automatic (the 8AP1075 variant for diesel applications) uses a five clutch-pack design with only two open clutches active in any gear. A torque converter lock with turbine torsional damper operates in gears one through eight for low lock-up speeds, reducing heat buildup during heavy hauls. The 3.42 axle ratio paired with this transmission gives higher final drive ratios in gears one through six for confident acceleration under load, and lower ratios in gears seven and eight for quieter, more fuel-efficient highway cruising.
The standard 31-gallon fuel tank supports an estimated 600-mile range on a single fill, a figure that matters specifically to overlanders and contractors working far from the nearest fuel stop in central Oklahoma and across the rural corridors this group's customers travel.
For HEMI-equipped trucks, the TorqueFlite HD 8HP75-LCV transmission is matched to axle ratio options of 3.73 or 4.10, with the 4.10 axle combination delivering the highest GCWR and tow ratings in gas configuration.
Across the Trims: Capability by Configuration
Every 2027 Ram 2500 trim from Tradesman through Limited offers both the 6.4L HEMI V8 as standard and the 6.7L Cummins HO Turbo Diesel as an available upgrade. The key capability differences fall along axle, suspension, and package lines rather than trim lines alone.
Power Wagon (Diesel)
The 2027 Power Wagon with Cummins diesel is the standout configuration this model year. It uses a 3.42 axle ratio, Bilstein monotube shocks front and rear, class-exclusive electronic front and rear locking differentials, a class-exclusive disconnecting front stabilizer bar, and class-exclusive five-link coil rear suspension. Ground clearance is 13.2 inches. The approach angle measures 26.1 degrees and the departure angle 26 degrees, giving it the geometry to clear obstacles that stop conventional heavy-duty trucks. Fifth-wheel and gooseneck prep is now available on the Power Wagon diesel for the first time, adding serious towing utility to its off-road resume.
Payload Upgrade Package (HEMI trims)
Available on Tradesman, Big Horn, Laramie, Limited, and Limited Longhorn with the 6.4L HEMI V8, this package raises GVWR from 10,000 lbs to 11,040 lbs using a 3500-series frame, leaf spring rear suspension, upgraded rear shocks, and an anti-spin rear differential. The result is the best-in-class 2500 payload figure of 4,580 lbs.
Towing Technology Group
Available across all trims, this package adds a 360-degree surround view camera, LED third brake light with cargo-view camera, trailer reverse guidance, and trailer tire pressure monitoring, each one directly supporting real-world towing confidence.
Tow Technology Plus Group
Adds the digital rearview mirror 3.0 and Trailer Reverse Steering Control. The Trailer Reverse Steering Control lets the driver use a knob to steer the trailer while the system manages the truck's steering wheel, removing the counterintuitive control reversal that makes trailer backing difficult.
Auto-Leveling Rear Air Suspension
Available on Rebel, Laramie, Limited Longhorn, and Limited trims, this class-exclusive system raises or lowers the rear of the truck to align the hitch with the trailer, and actively levels the rear under load for improved stability and fuel efficiency during towing.
Real-World Benefit: What These Numbers Mean on the Job
20,000-lb Towing Capacity
A 20,000-lb tow rating covers fifth-wheel livestock trailers, dual-axle equipment trailers loaded with skid steers, large gooseneck flatbeds, and most travel trailers in the super-size category. Oklahoma farmers and ranchers running cattle operations or hauling hay equipment will find the diesel 2500 capable of handling their heaviest single-load days without splitting a trip.
1,075 lb-ft at 1,800 rpm
The 1,075 lb-ft torque figure peaks at 1,800 rpm. In practical terms, the engine is already pulling at full force at low speed in a parking lot or a ranch gate, not just at highway speeds. That low-rpm torque character means the transmission does not need to hunt for gears or downshift aggressively on grades, reducing drivetrain heat and wear over a long hauling season.
4,580-lb Gas Payload
The 4,580-lb payload figure (HEMI with Payload Upgrade Package) is relevant for contractors loading concrete, tools, and materials in the bed, or for buyers running a bed-mounted camper. That number represents the most a 3/4-ton gas pickup can legally carry in this class.
Estimated 600-Mile Diesel Range
For Power Wagon buyers who mix trail work with towing, the diesel variant now provides extended range and genuine torque reserve for both tasks. An estimated 600 miles on a tank means fewer fuel stops on a hunting trip or overland run through the Oklahoma panhandle or into Colorado.
Five-Link Coil Rear Suspension
The five-link coil rear suspension on the Ram 2500 (standard on Power Wagon and other configurations) delivers better articulation than a traditional leaf-spring setup, which means the rear axle tracks more consistently over rough ground while carrying a load.
Ram 2500 Power Wagon off-road features
How It Compares: Ram 2500 in the 3/4-Ton Segment
The 1,075 lb-ft of Cummins diesel torque is the highest base diesel torque figure in the 3/4-ton class. Rival diesel 3/4-ton trucks offer competitive towing ratings, but the Ram 2500 reaches 20,000 lbs maximum diesel towing and pairs it with class-exclusive features that no competitor offers in the same configuration.
The five-link coil rear suspension on the Ram 2500 has no direct equivalent in the segment. Ford F-250 and Chevrolet Silverado 2500 use leaf-spring rear suspensions as standard, which trade articulation quality for raw payload simplicity. Ram's coil system retains competitive payload while delivering a measurably smoother ride under load.
The class-exclusive disconnecting front stabilizer bar on the Power Wagon is another differentiator with no parallel in this segment. It allows the front axle to move more independently of the frame for improved off-road articulation, a hardware advantage no amount of electronic adjustment can replicate in a competing truck.
The available automatic-leveling rear air suspension is also class-exclusive, not available on F-250 or Silverado 2500 in the same application.
The 14.5-inch Uconnect 5 touchscreen is the largest infotainment display in the class, relevant to capability buyers because it powers the towing information pages, trailer brake controller interface, and the digital cluster's trailer tire pressure monitoring system.
See the 2027 Ram 2500 at Johnsons of Kingfisher
The 2027 Ram 2500 with 1,075 lb-ft of Cummins diesel torque and a 20,000-lb tow rating is available now at Johnsons of Kingfisher in Kingfisher, OK. Whether you need the diesel Power Wagon for off-road and towing versatility or the HEMI-powered truck with the Payload Upgrade Package for maximum bed capacity, the 2027 Ram 2500 lineup covers the full range of heavy-duty work. Check current inventory and configure the trim and packages that match your specific hauling requirements.
Frequently Asked Questions
What is the maximum towing capacity of the 2027 Ram 2500?
The 2027 Ram 2500 tows up to 20,000 lbs when equipped with the available High-Output 6.7L Cummins Turbo Diesel and properly configured.
How much torque does the 2027 Ram 2500 diesel produce?
The available 6.7L Cummins HO Turbo Diesel produces 1,075 lb-ft of torque at 1,800 rpm, which is the highest base diesel torque figure in the 3/4-ton class.
What is the maximum payload of the 2027 Ram 2500?
The 2027 Ram 2500 reaches a maximum payload of 4,580 lbs with the 6.4L HEMI V8 and the available Payload Upgrade Package, which is best-in-class for gas-powered 3/4-ton trucks.
Is the Cummins diesel available in the 2027 Ram 2500 Power Wagon?
Yes. The 6.7L Cummins HO Turbo Diesel is available in the Power Wagon for the first time with the 2027 model year. It produces 430 horsepower and 1,075 lb-ft of torque in that configuration.
What transmission comes with the 2027 Ram 2500 Cummins diesel?
The 6.7L Cummins HO Turbo Diesel pairs with the TorqueFlite HD 8-speed automatic transmission (8AP1075 variant), which uses a five clutch-pack design and torque converter lock active in all eight gears.
Does the 2027 Ram 2500 have fifth-wheel towing capability?
Yes. Fifth-wheel and gooseneck prep is available across the 2500 lineup, and the Power Wagon diesel gains this option for the first time in 2027.
What is the estimated driving range of the 2027 Ram 2500 diesel?
With its standard 31-gallon fuel tank, the 2027 Ram 2500 diesel delivers an estimated 600-mile range per fill, making it suited for long hauls and remote travel.
What is Trailer Reverse Steering Control on the 2027 Ram 2500?
Trailer Reverse Steering Control is an available system that lets the driver steer the trailer with a knob while the truck's steering wheel is managed automatically, simplifying the process of backing a trailer into position. It is included in the available Tow Technology Plus Group.
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