2026 Ram 3500 Towing Capacity: Every Configuration, Every Number

How much can the 2026 Ram 3500 actually tow — and which configuration gets you to the number you need? The answer depends on three things: your engine, your wheel type, and your axle ratio. Get any one of those wrong and you could leave thousands of pounds of towing capacity on the table.

This guide breaks down every OEM-verified towing figure for the 2026 Ram 3500, organized by engine, cab, bed length, and single rear wheel (SRW) versus dual rear wheel (DRW) configuration. Every number comes directly from the 2026 Ram Heavy Duty Tow/Payload Chart, so you can match the right setup to your trailer before you ever visit the lot.

How much can the 2026 Ram 3500 tow?

The 2026 Ram 3500 tops out at 36,610 pounds of maximum trailer weight when equipped with the 6.7L Cummins HO Turbo Diesel, dual rear wheels (DRW), a 3.42 axle ratio, and a 4×4 Regular Cab or Crew Cab 8-foot bed configuration. With the 6.4L HEMI V8, the maximum is 18,150 pounds in a DRW Crew Cab 8-foot bed with a 4.10 axle ratio.

Those are the ceiling numbers, but your real tow rating depends on the specific combination of engine, cab, bed length, wheel type, axle ratio, and drivetrain you choose. A Cummins SRW Crew Cab tows a very different load than a Cummins DRW Regular Cab. The tables below lay out every configuration so you can find the exact number that applies to the truck you’re building.

What is the maximum towing capacity with the Cummins diesel dually?

The Cummins DRW peaks at 36,610 pounds with a Gross Combined Weight Rating (GCWR) of 45,000 pounds. That number is available on the Regular Cab 8-foot bed 4×4 and the Crew Cab 8-foot bed 4×4, both with the 3.42 axle ratio and 14,000-pound GVWR.

The Cummins produces 430 horsepower and 1,075 lb-ft of torque for 2026 — a 10-horsepower increase over 2025 and the best-in-class available base diesel torque in the heavy-duty segment. When you pair that with dual rear wheels and the 14,000-pound GVWR chassis, you get towing numbers that handle the heaviest 5th-wheel campers, commercial equipment trailers, and multi-head livestock rigs that roll through the Northern Plains.

How does towing capacity change between SRW and DRW?

Wheel type is the single biggest variable in the Ram 3500’s tow ratings. A Cummins DRW Crew Cab 8-foot bed 4×4 tows up to 36,610 pounds, while the same truck in SRW tops out at 26,080 pounds (Regular Cab 8-foot bed 4×4). That’s a 10,530-pound difference driven entirely by whether you have four rear tires or six.

The Cummins sees a massive jump because the DRW chassis raises the GVWR from 11,500–12,300 pounds to 14,000 pounds and the GCWR from roughly 34,000 to 45,000 pounds. The HEMI’s DRW gain is smaller because its GCWR increase is more modest (24,250 to 25,000 pounds).

If you’re shopping a Ram 3500 specifically for towing, the SRW vs. DRW choice is where the real decision lives. For a deeper comparison of daily driving, tire costs, and maneuverability tradeoffs, see our SRW vs. DRW buyer’s guide.

Which configuration matches your trailer?

Worth it if: you regularly tow above 20,000 pounds — the DRW Cummins is the only configuration that handles that range comfortably with margin to spare.
Skip it if: your heaviest trailer stays under 17,000 pounds — an SRW keeps your tire costs lower and parks easier in town, and still handles the load.

Can the Ram 3500 pull a 5th wheel or gooseneck trailer?

Yes — and for trailers over 23,000 pounds, a 5th-wheel or gooseneck hitch is required on the Ram 3500. The factory 5th Wheel/Gooseneck Towing Prep Group (option code AHU, $745) adds 7-pin bed wiring, a 12-pin connector, and auxiliary camera provisions. It’s also included in the Max Tow Package, which bundles it with auto-level rear air suspension.

The maximum tongue weight for a conventional Class V receiver hitch on the Ram 3500 is 2,300 pounds — higher than the 2,000-pound limit on the Ram 2500. For 5th-wheel and gooseneck setups, OEM guidelines recommend tongue weight at 15% of gross trailer weight, versus 10% for conventional hitches.

What tow rating do I need for a large livestock trailer in South Dakota?

A fully loaded gooseneck livestock trailer hauling 20 or more head of cattle can easily push 22,000 to 28,000 pounds depending on breed, trailer size, and how many compartments you’re filling. For that load range, you need a Cummins DRW configuration — it’s the only Ram 3500 setup with enough margin above 26,000 pounds to keep you legal and safe.

If you’re running a smaller bumper-pull trailer with 10 to 16 head, a Cummins SRW handles that weight comfortably. The SRW tops out at 26,080 pounds, so you have thousands of pounds of headroom on a 14,000-to-18,000-pound loaded rig.

For ag operators around Bowdle and across the Northern Plains, the practical question is usually about the worst-case scenario: hauling a full load on a hot day, on gravel, with hills. Build your towing requirement around that day, not the average day. If your worst-case load is 24,000 pounds, a 26,080-pound SRW rating doesn’t leave much margin — and the DRW’s 36,610-pound ceiling gives you room to breathe.

How to match your Ram 3500 configuration to your trailer

Start with your trailer’s gross vehicle weight rating (the loaded weight, not the empty weight), then work backward to find the Ram 3500 configuration that exceeds it with margin.

1. Weigh your loaded trailer: Use the trailer manufacturer’s GVWR or weigh it on a certified scale at your heaviest realistic load — not the empty weight.
2. Add 10–15% margin: If your loaded trailer weighs 22,000 lbs, target at least 24,200–25,300 lbs of towing capacity to account for passengers, gear, fuel, and uneven loads.
3. Choose your wheel type: If your target number exceeds 26,000 lbs, you need DRW. Under 18,000 lbs, SRW works with either engine. Between 18,000 and 26,000 lbs, SRW with Cummins handles it.
4. Choose your engine: The Cummins unlocks the highest tow ratings at every configuration level. The HEMI maxes at 18,150 lbs (DRW) — if your needs exceed that, the diesel is the only option.
5. Check the axle ratio: The 4.10 axle ratio maximizes towing with the HEMI. For the Cummins, the 3.42 axle ratio delivers the highest tow ratings on DRW configurations.
6. Confirm the hitch type: Conventional receiver up to 23,000 lbs. Above that, 5th-wheel or gooseneck required. Budget for the $745 factory prep group if it’s not already included.

What axle ratio should I choose for maximum towing on the Ram 3500?

With the HEMI, the 4.10 axle ratio consistently delivers the highest tow ratings across every configuration. With the Cummins, the picture is different — the 3.42 axle ratio produces the maximum tow ratings on DRW configurations because the higher GCWR ceiling (45,000 lbs) pairs with the diesel’s enormous low-end torque.

Frequently Asked Questions