Ram 3500 Towing & Engine Options [2026 Guide]

Our Ram 3500 towing & engine option guide gives you the precise data needed to choose a heavy-duty truck that never backs down from a challenge. Whether you're hauling massive livestock trailers across the Front Range, moving heavy machinery to a Denver job site, or pulling a premium fifth-wheel camper up steep mountain passes, knowing your powertrain capabilities changes everything.

At Christopher's Dodge Ram, we know that true capability is about matching the right configuration to your specific workload. The 2026 model year cements the Ram 3500 as an unyielding powerhouse, combining high-strength engineering with intuitive towing tech. Let's break down the mechanical details, torque ratings, and towing maximums that set this truck apart from the competition.

2026 Ram 3500 Engine Options

The foundation of the truck's legendary capability rests on two distinct, purpose-built power plants. Each engine targets a unique balance of heavy-duty performance, payload capacity, and daily driving dynamics.

6.4L HEMI® V8 Gasoline Engine

Serving as the standard power plant across the lineup, the legendary 6.4L HEMI V8 provides commercial-grade gas performance. It pairs with a highly refined TorqueFlite® eight-speed automatic transmission that uses on-the-fly shift mapping to stay in the ideal power band.

• Horsepower: 405 hp

• Torque: 429 lb-ft

• Maximum Gas Towing: 18,150 pounds

• Maximum Gas Payload: 7,590 pounds

This setup is ideal for drivers who require maximum payload capacity for truck-bed equipment or haul moderate construction trailers, offering exceptional responsiveness and lower upfront acquisition costs.

High-Output 6.7L Cummins® Turbo Diesel I6 Engine

For extreme hauling and long-distance towing under substantial loads, the available High-Output 6.7L Cummins Turbo Diesel engine is the ultimate choice. It pairs with a heavy-duty TorqueFlite® HD eight-speed automatic transmission designed specifically to manage immense low-end power with minimal noise and vibration.

• Horsepower: 430 hp

• Torque: 1,075 lb-ft

• Maximum Diesel Towing: 36,610 pounds

• Maximum Diesel Payload: 6,050 pounds

The hallmark of this inline-six diesel engine is its relentless torque delivery, providing the immense pulling power needed to maintain highway speeds up steep mountain grades without breaking a sweat.

To see which of these heavy-duty setups matches your needs, you can explore our complete new Ram 3500 inventory online.

Towing Capabilities by Wheel Configuration

When configuring your truck for maximum trailer weight, your choice between Single Rear Wheel (SRW) and Dual Rear Wheel (DRW) makes a massive difference.

While the engine provides the raw power, your wheel configuration determines how safely and effectively that power is transferred to the pavement under a heavy load.

• Single Rear Wheel (SRW): Choosing an SRW model keeps your truck nimbler for daily driving and tight parking spaces. When equipped with the High-Output Cummins diesel, an SRW configuration can confidently tow up to 26,080 pounds, which handles large horse trailers or heavy bumper-pull equipment with ease.

• Dual Rear Wheel (DRW): If your world revolves around hotshot flatbeds or massive commercial goosenecks, the dually setup is mandatory. Upgrading to a DRW setup expands your maximum towing limit to its absolute ceiling of 36,610 pounds. The extra set of rear tires adds vital stability, resisting crosswinds and eliminating trailer sway during high-capacity hauls.

No matter the scale of your workload, our team can help you find competitive purchasing options through our rotating new specials.

Intelligent Towing Technology

Pulling a heavy load requires more than just raw horsepower; it requires smart systems that keep you in control. The 2026 model year elevates your trailering confidence with an array of integrated tech tools.

Inside the cabin, the available 12-inch Digital Cluster Display features dedicated Trailer Tow Pages. These screens keep vital telemetry like trailer brake status, tire pressure monitoring, and transmission temperature directly in your line of sight. If you need extra visibility, the available Trailer Surround View Camera system provides an overhead perspective of both the truck and the trailer to make tight maneuvers stressful-free.

An available factory-installed Auto-Level Rear Air Suspension system instantly adjusts to heavy tongue weights, ensuring your truck stays perfectly level to maintain optimal steering geometry and headlight aim. For bumper-pull setups, the Class V conventional receiver hitch supports up to a 2,300-pound tongue weight, outclassing smaller heavy-duty platforms.

Frequently Asked Questions

What configuration do I need to reach the maximum 36,610-pound tow rating?

To unlock the absolute maximum towing capacity, you must select the High-Output 6.7L Cummins Turbo Diesel engine, a Dual Rear Wheel (DRW) setup, a 4x4 Regular Cab or Crew Cab with an 8-foot bed, and the required 3.42 rear axle ratio.

Why does the gas engine have a higher payload rating than the diesel?

The cast-iron block and heavy-duty components of the Cummins diesel engine weigh significantly more than the HEMI V8. Because both trucks operate under strict Gross Vehicle Weight Ratings, the extra physical weight of the diesel engine subtracts from the truck's maximum bed payload capacity.

What does the Automatic Smart Exhaust Brake do on diesel models?

Standard on the Cummins turbo diesel, this system uses a variable-nozzle turbocharger to create backpressure, helping alter engine speed to slow the truck down on downhills. It reduces brake wear significantly and prevents your service brakes from overheating on steep descents.

Should I choose a 3.73 or a 4.10 axle ratio for a gas-powered truck?

If you choose the 6.4L HEMI V8, upgrading to the 4.10 axle ratio optimizes low-end torque multiplication. This increases your maximum gas towing capacity from 15,750 pounds up to its peak of 18,150 pounds, making it the preferred choice for regular towing.

Find Your Ram 3500 Today

The right truck doesn't just make hard work easier; it expands what you are capable of accomplishing. If you are ready to find a heavy-duty platform that can handle your toughest trailering tasks without missing a beat, it is time to experience the Ram 3500 firsthand.

Our dedicated truck specialists are standing by to walk you through frame specifications, axle ratios, and custom upfit options. Please contact us today to schedule your private consultation and test drive. Let us help you build a truck that is perfectly tailored to your heavy-duty demands.