2018 Ram 1500 Towing Capacity & Payload

A 2018 Ram 1500 can tow up to 10,620 pounds when properly equipped with the 5.7L HEMI V8 and the optional 3.92 axle ratio.

Quick answer

• Max Towing Capacity: 1,640 to 10,620 lbs
• Max Payload Capacity: 890 to 1,880 lbs
• GVWR (Gross Vehicle Weight Rating): 6,025 to 6,945 lbs
• GCWR (Gross Combined Weight Rating): 11,800 to 15,950 lbs
• Curb Weight: 4,520 to 5,660 lbs
• Hitch Receiver Class: Class IV

Tow ratings by engine & trim

The 2018 Ram 1500's towing capacity depends heavily on its configuration. The engine choice, rear axle ratio, and drivetrain are the most significant factors. All ratings listed are compliant with SAE J2807 standards.

Note: Specific capacities vary by cab size (Regular, Quad, Crew) and bed length. Always confirm your vehicle's exact ratings on the driver's side door-jamb sticker.

Tow package contents

To achieve the maximum advertised towing capacities, the 2018 Ram 1500 must be equipped with the optional Trailer Tow Group. This package includes essential hardware to make towing safer and more stable.

• Class IV Hitch Receiver: A frame-mounted receiver that is the foundation of the towing system.
• 7-Pin Wiring Harness: Provides the necessary connections for trailer lights and electric trailer brakes.
• Trailer Sway Control: An electronic system that uses the truck's stability control to detect and counteract unwanted trailer movement, applying individual brakes to keep the trailer in line.
• Integrated Trailer Brake Controller: (Optional, but highly recommended) This factory-installed controller allows you to adjust and activate the trailer's electric brakes from the driver's seat for smoother, more controlled stops. Without it, you would need to install an aftermarket unit.
• Heavy-Duty Engine & Transmission Cooling: While the 5.7L HEMI often includes robust cooling as standard, the tow package ensures the transmission and engine can handle the extra heat generated by towing heavy loads, preventing overheating and potential damage.

5th-wheel & gooseneck

The 2018 Ram 1500 is a light-duty truck and is not designed or rated for 5th-wheel or gooseneck towing. These towing methods are reserved for heavy-duty trucks like the Ram 2500 and 3500, which have the frame strength and suspension required to handle the in-bed mounting and pin weight of these larger trailers.

Weight distribution & WDH requirements

For any trailer weighing over 5,000 pounds, Ram requires the use of a weight-distributing hitch (WDH). A WDH helps to level the truck and trailer combination by distributing a portion of the trailer's tongue weight from the rear axle to the truck's front axle and the trailer's axles.

This has several benefits:

• Improved Steering and Braking: By putting weight back on the front wheels, it maintains proper steering control and braking performance.
• Reduced Rear Sag: It prevents the rear of the truck from sagging, which can aim your headlights into the eyes of oncoming drivers.
• Enhanced Stability: A level rig is less susceptible to trailer sway.

The standard hitch receiver has a tongue weight limit of 500 pounds. Using a WDH increases this capacity, but it's crucial to ensure the tongue weight does not exceed 10-15% of the total trailer weight.

Real-world towing tips for this vehicle

• Know Your Axle Ratio: The 3.92 axle ratio is the key to unlocking the Ram 1500's highest tow ratings. If you plan to tow heavy, this is the single most important option.
• EcoDiesel for Efficiency: The 3.0L EcoDiesel V6 is a great choice for those who tow frequently over long distances. It offers impressive torque (420 lb-ft) and significantly better fuel economy while towing compared to the V8.
• Use Tow/Haul Mode: Always engage the Tow/Haul mode when pulling a trailer. It adjusts transmission shift points, holding gears longer to prevent constant shifting and improve engine braking on downgrades.
• Payload is the Limiting Factor: It's easy to exceed your truck's payload capacity before you hit its max tow rating. Remember that payload includes the trailer's tongue weight, all passengers, and any cargo in the truck bed or cab. With a 1,500-lb payload, a 1,000-lb tongue weight leaves only 500 lbs for you and your gear.

Common towing-related issues

• Transmission Temperature: While the Ram 1500 has adequate cooling, especially with the tow package, on long, steep grades in hot weather, the transmission can still get hot. Keep an eye on the transmission temperature gauge in your dashboard information center.
• Rear-End Sag: The 2018 Ram 1500 comes standard with a coil-spring rear suspension, which provides a comfortable ride but can be prone to sagging under heavy tongue weights. A WDH is essential, and some owners opt for aftermarket airbags to further improve stability.
• Check Your Tires: Ensure your truck's tires are inflated to the pressure recommended for towing, often found on the door-jamb sticker. Under-inflated tires can overheat and lead to a blowout under load.

Find a trusted shop on Repairius.