2015 Ram 3500: What's New, Specs & Features

Last updated August 4, 2026

The most important change for the 2015 Ram 3500 is a stronger high-output Cummins diesel and Aisin automatic transmission pairing, raising peak torque to 865 lb-ft. Maximum payload also rises to 7,390 pounds, but this is otherwise a light update rather than a redesign.

0 in stock at Carvana

About the 2015 Ram 3500

4th-generation Ram Heavy Duty (2013-2018), third model year after the 2013 overhaul.

Ram positioned the 3500 as a serious heavy-duty pickup for buyers who tow and haul big loads but do not want to give up comfort, cabin quality, or everyday usability. The brand leaned hard on towing, payload, multiple engine choices, the Mega Cab body style, and a trim range that ran from basic work truck to full luxury truck. Its big differentiator versus rivals was combining real heavy-duty capability with a noticeably more comfortable and upscale interior.

The 2015 lineup runs from the no-nonsense Tradesman to the luxury-focused Laramie Limited. SLT adds everyday comforts and an integrated trailer brake controller, while Big Horn brings a 5-inch touchscreen and brighter exterior trim. Laramie and higher trims step up to leather, an 8.4-inch touchscreen, premium audio, and features such as navigation and ventilated front seats.

What changed, by category

Powertrain and capability

The high-output Cummins diesel paired with the Aisin automatic transmission receives a stronger tune, increasing peak torque to 865 lb-ft. Maximum payload rises to 7,390 pounds, while the maximum tow rating remains 30,000 pounds.

Interior equipment

Tradesman adds optional heavy-duty vinyl upholstery for work-focused use.

2015 Ram 3500 specs and features by trim

Feature	2015 Ram 3500SLT0 in stock	2015 Ram 3500Laramie0 in stock	2015 Ram 3500Big Horn0 in stock	2015 Ram 3500Lone Star0 in stock	2015 Ram 3500Tradesman0 in stock	2015 Ram 3500Laramie Limited0 in stock	2015 Ram 3500Laramie Longhorn0 in stock
Engine	6-Cyl, Turbo Diesel, 6.7 Liter / V8, HEMI, 5.7 Liter / V8, HEMI, 6.4 Liter / 6-Cyl, Turbo Dsl, 6.7L	6-Cyl, Turbo Diesel, 6.7 Liter / V8, HEMI, 5.7 Liter / V8, HEMI, 6.4 Liter / 6-Cyl, Turbo Dsl, 6.7L	6-Cyl, Turbo Diesel, 6.7 Liter / V8, HEMI, 5.7 Liter / V8, HEMI, 6.4 Liter / 6-Cyl, Turbo Dsl, 6.7L	6-Cyl, Turbo Diesel, 6.7 Liter / V8, HEMI, 5.7 Liter / V8, HEMI, 6.4 Liter / 6-Cyl, Turbo Dsl, 6.7L	6-Cyl Turbo Diesel 6.7L / V8, HEMI, 5.7 Liter / V8, HEMI, 6.4 Liter / 6-Cyl, Turbo Dsl, 6.7L	6-Cyl, Turbo Diesel, 6.7 Liter / V8, HEMI, 5.7 Liter / V8, HEMI, 6.4 Liter / 6-Cyl, Turbo Dsl, 6.7L	6-Cyl, Turbo Diesel, 6.7 Liter / V8, HEMI, 5.7 Liter / V8, HEMI, 6.4 Liter / 6-Cyl, Turbo Dsl, 6.7L
Transmission	Automatic, 6-Spd	Automatic, 6-Spd	Automatic, 6-Spd	Automatic, 6-Spd	Automatic, 6-Spd	Automatic, 6-Spd	Automatic, 6-Spd
Drivetrain	4WD	4WD	4WD	4WD	4WD	4WD	4WD
Fuel Type	Diesel / Gas	Diesel / Gas	Diesel / Gas	Diesel / Gas	Diesel / Gas	Diesel / Gas	Diesel / Gas
Horsepower	350–410 hp	350–410 hp	350–410 hp	350–410 hp	350–410 hp	350–410 hp	350–410 hp
Torque	400–850 lb-ft	400–850 lb-ft	400–850 lb-ft	400–850 lb-ft	400–850 lb-ft	400–850 lb-ft	400–850 lb-ft
Max Towing	17490–29530 lb	17490–29010 lb	17500–29010 lb	17500–29010 lb	17010–29530 lb	17490–29010 lb	17490–29010 lb
Rear Legroom	40.3–43.3 in	40.3–43.3 in	40.3–43.3 in	40.3–43.3 in	40.3 in	40.3–43.3 in	40.3–43.3 in
Seats	3–6	6	6	6	3–6	5	5
Doors	2–4	4	4	4	2–4	4	4
Safety & Security
Alarm System
Automatic High Beams
Park Assist
Rain Sensing Windshield Wipers
Rear View Camera
Exterior Features
Alloy Wheels
Fog Lights
Memory Exterior Mirrors
Power Moonroof
Power Folding Exterior Mirrors
Side Steps
Entertainment & Electronics
Navigation System
SD Card Slot
Satellite Radio
Smartphone Interface
Subwoofer
Touch Screen Monitor
USB Ports
Comfort & Convenience
115V Power Outlet
Auto-Dimming Interior Mirror
Dual Power Front Seats
Dual Power Lumbar Support Front Seats
Dual-Zone Climate Control
Heated Front Seats
Heated Rear Seats
Heated Steering Wheel
Integrated Garage Door Opener
Leather Seats
Leather-Wrapped Steering Wheel
Memory Driver's Seat
Memory Pedals
Power Adjustable Pedals
Power Driver Seat
Proximity Keyless Entry
Remote Start
Remote Keyless Entry
Tilt Wheel
Ventilated Front Seats

How the 2016 Ram 3500 compares

The most important change for the 2016 Ram 3500 is its stronger high-output 6.7-liter Cummins diesel, which reaches 900 lb-ft of torque on qualifying trucks. That pushes maximum towing to 31,210 pounds, while the rest of the lineup sees only limited updates.

See the full 2016 changes

Frequently asked questions

What is the biggest change to the 2015 Ram 3500?

The biggest change is a stronger tune for the high-output Cummins diesel paired with the Aisin automatic transmission. It raises peak torque to 865 lb-ft.

Was the 2015 Ram 3500 redesigned?

No. The 2015 Ram 3500 continues the fourth-generation Heavy Duty design introduced for 2013, with modest powertrain, capability, and equipment updates.

How much can the 2015 Ram 3500 tow and carry?

The 2015 Ram 3500 has a maximum tow rating of 30,000 pounds and a maximum payload rating of 7,390 pounds. Actual capacity depends on the truck’s cab, bed, drivetrain, engine, and other equipment.

Is the 2015 Ram 3500 substantially different from the 2014 model?

No. Its main improvements are the 865-lb-ft high-output Cummins tune and the higher maximum payload rating. Most styling, safety, and technology features carry over, while Tradesman gains optional heavy-duty vinyl upholstery.

Which 2015 Ram 3500 trims have the most upscale cabins?

Laramie, Laramie Longhorn, and Laramie Limited are the luxury-focused 2015 trims. Their notable features include leather upholstery, an 8.4-inch touchscreen, premium audio, and heated and ventilated front seats, with navigation fitted to Longhorn and Limited.

2015 Ram 3500 Reviews

What owners are saying about the 2015 Ram 3500.

4.3

2015 Ram 3500

(800 reviews)

5 stars (360)

4 stars (322)

3 stars (100)

2 stars (17)

1 star (1)

“great vehicle I hope it last a very long time and I do think that it will the only thing I wish I would have bought the power folding mirror's an don't know if they can be added and it seems to change gears to quick but a very pleasant ride.”

WLWayne L.
2015 Ram 3500 Crew Cab 4WD

No rating

“The large badges on the doors have been removed. Not crazy about the size and look of all the badges. The truck is distinctive enough without having the billboards - Most Ram owners I know remove some or all the badges.”

DZDouglas Z.
2015 Ram 3500 Crew Cab 4WD

No rating

“I like the extra storage compartments on my truck. I wished I had better lights instead of the old yellow headlights (candlepower)”

EBEarl B.
2015 Ram 3500 Crew Cab 4WD