The stock tires for Ram 3500 diesel 4×4 single-rear-wheel trucks are 275/70R18 or 285/60R20 (2013 and newer), and none of the five listings below is an exact stock size. They are 33 to 35-inch oversize tires that need clearance checks, or a 2011-2012 size.
Disclosure: some links are Amazon affiliate links; we may earn a commission at no extra cost to you. We have not road-tested these tires. Specs come from the Amazon listings and tire-size data from tiresize.com.
| Evoluxx Rotator R/T 33×12.50R18LT (set of 4) |  | Oversize vs stock, 18-inch | Tire size: 33×12.50R18LT | Fit: Larger than stock 275/70R18 | Type: Rugged-terrain, load range F | VIEW LATEST PRICE | Read Our Analysis |
| Accelera M/T-01 35×12.50R18 (set of 4) |  | 35-inch, needs lift | Tire size: 35×12.50R18LT | Fit: Large lift-kit size | Type: Mud-terrain, load range E | VIEW LATEST PRICE | Read Our Analysis |
| Venom Power Terra Hunter X/T 33×12.50R20LT |  | Near stock diameter, wider, 20-inch | Tire size: 33×12.50R20LT | Fit: 20-inch trims (check clearance) | Type: Rugged-terrain, load range E | VIEW LATEST PRICE | Read Our Analysis |
| Atlander Roverclaw R/T 35×12.50R17LT (set of 4) |  | 35-inch, 17-inch wheels | Tire size: 35×12.50R17LT | Fit: Needs lift and 17-inch wheels | Type: Rugged-terrain, load range E | VIEW LATEST PRICE | Read Our Analysis |
| Lexani Terrain Beast AT LT265/70R17 121/118S E |  | Fits 2011-2012 SRW 17-inch only | Tire size: LT265/70R17 121/118S | Fit: 2011-2012 SRW only | Type: All-terrain LT, load range E | VIEW LATEST PRICE | Read Our Analysis |
More Details on Our Top Picks
Evoluxx Rotator R/T 33×12.50R18LT (set of 4)
A 33-inch tire for 18-inch wheels. Stock 275/70R18 is about 32 inches tall, so this is wider and taller; check fender and steering clearance. The load range is F per listing.- Tire Size:33×12.50R18LT
- Load Index:Per listing
- Rim Size:18 inches
- Fit:Larger than stock 275/70R18
Pros
- Load range F
- Full set in one order
Limitations
- Wider and taller than stock
- May need clearance work
Accelera M/T-01 35×12.50R18 (set of 4)
A 35-inch mud-terrain on 18-inch wheels, about 3 inches taller than stock. This normally needs a lift or leveling kit and recalibration of the speedometer. Mud-terrain tread is louder on pavement.- Tire Size:35×12.50R18
- Load Index:123 per listing
- Rim Size:18 inches
- Fit:Large lift-kit size
Pros
- Aggressive off-road tread
- Load range E
Limitations
- Needs lift for clearance
- Louder on pavement
Venom Power Terra Hunter X/T 33×12.50R20LT
Closest to stock diameter among these: stock 285/60R20 is about 33.5 inches tall, and this tire is wider. Check clearance. The extreme-terrain label is the seller’s.- Tire Size:33×12.50R20LT
- Load Index:Per listing
- Rim Size:20 inches
- Fit:20-inch trims (check clearance)
Pros
- Similar overall diameter to stock
- Load range E
Limitations
- Wider than stock
- Check clearance and rim width
Atlander Roverclaw R/T 35×12.50R17LT (set of 4)
A 35-inch tire for 17-inch wheels. The listing shows a load index of 121 but lists a capacity of 3,297 lb per tire, which does not match; load index 121 is about 3,197 lb. Check the sidewall. Needs a lift.- Tire Size:35×12.50R17LT
- Load Index:121 per listing
- Rim Size:17 inches
- Fit:Needs lift and 17-inch wheels
Pros
- Load range E
- 35-inch fit for lifted builds
Limitations
- Listing figures conflict
- Needs lift and big-tire clearance
Lexani Terrain Beast AT LT265/70R17 121/118S E
265/70R17 is listed for 2011-2012 single-rear-wheel Ram 3500 trucks only. It does not fit 2013 and newer SRW trucks (275/70R18 or 285/60R20) or any dually (235/80R17). The listing also labels the season as Summer, which conflicts with the all-terrain description.- Tire Size:LT265/70R17
- Load Index:121/118
- Rim Size:17 inches
- Fit:2011-2012 SRW only
Pros
- Correct size for 2011-2012 SRW
Limitations
- Not for 2013+ trucks
- Season label conflicts
Tires for Ram 3500 diesel 4×4: stock sizes and big-tire fits
Stock sizes (single rear wheel)
- 2011-2012: 265/70R17.
- 2013-2026: 275/70R18 or 285/60R20, depending on trim.
- Dually (all years): 235/80R17. See our dually page.
Source: tiresize.com; confirm on your own sticker.
Fit checklist for oversize tires
- Read the size on the door-jamb sticker. See how to read the door-jamb tire sticker.
- Keep the same rim diameter, and match or beat the stock load index and load range.
- Buy four matching tires on four-wheel drive.
- A 33 to 35-inch tire is taller than stock and may need a lift or leveling kit, and the speedometer will read low.
- Check load range (E or F) and weight capacity against your truck and trailer.
- Heavy mud-terrain tread is louder and wears faster on pavement.
FAQ
What tire size does a Ram 3500 diesel 4×4 use?
On single-rear-wheel trucks 2013 and newer, 275/70R18 or 285/60R20. Dually trucks use 235/80R17. Check your door-jamb sticker.
Can I run 35-inch tires on a Ram 3500?
Usually with a lift or leveling kit and clearance checks. It affects gearing and the speedometer.
What does load range F mean?
A heavy-duty rating above load range E, with higher load and pressure capacity.
Are mud-terrain tires good for towing?
They can be, with the right load range, but they are louder and wear faster on pavement.
How often should I rotate Ram tires?
Follow your owner’s manual. Many shops suggest about every 5,000 to 7,500 miles.
When should I replace Ram 3500 tires?
When tread reaches 2/32 inch, or sooner if the tires are cracked or older than about six years.
Which one to choose
If you want to stay close to stock diameter on 20-inch wheels, the Venom Terra Hunter X/T 33×12.50R20LT is closest. The 35-inch Accelera and Atlander tires need a lift. The 33×12.50R18LT Evoluxx is a moderate upsize for 18-inch wheels. The Lexani LT265/70R17 is only for 2011-2012 trucks.
