2018 Ram 1500 Wheel & Tire Sizes
Complete fitment guide for the 2018 Ram 1500: factory tire sizes, compatible wheel diameters, widths and offsets, and the 5x139.7 bolt pattern, for every trim.
Bolt Pattern
5x139.7
Centre Bore
77.8 mm
Lug nuts
M14 x 1.5
Torque: 160 - 190 Nm
TPMS
433 MHz
Factory (OEM) Tire Sizes for the 2018 Ram 1500
OEM sizes
Click any size to shop tires in stock now, free shipping anywhere in Canada, optional installation at our 5 GTA locations.
2018 Ram 1500 Wheel Fitment by Trim
Compatible wheel diameter, width and offset ranges for each 2018 Ram 1500 configuration.
3.0 EcoDiesel · Pickup Crew Cab
3.0L · V6 · Diesel
| Spec | Front & Rear |
|---|---|
| Wheel diameter | 20–24" |
| Wheel width | 8–10.5" |
| Wheel offset | -24–28 mm |
| Tire width | 275–285 mm |
3.6 Pentastar · Pickup Crew Cab
3.6L · V6 · Petrol
| Spec | Front & Rear |
|---|---|
| Wheel diameter | 17–24" |
| Wheel width | 8–10.5" |
| Wheel offset | -24–28 mm |
| Tire width | 275–285 mm |
3.6 Pentastar · Pickup Crew Cab
3.6L · V6 · Petrol
| Spec | Front & Rear |
|---|---|
| Wheel diameter | 17–24" |
| Wheel width | 8–10.5" |
| Wheel offset | -24–28 mm |
| Tire width | 285–305 mm |
5.7 HEMI · Pickup Crew Cab
5.7L · V8 · Petrol
| Spec | Front & Rear |
|---|---|
| Wheel diameter | 17–24" |
| Wheel width | 8–10.5" |
| Wheel offset | -24–28 mm |
| Tire width | 275–285 mm |
5.7 HEMI · Pickup Crew Cab
5.7L · V8 · Petrol
| Spec | Front & Rear |
|---|---|
| Wheel diameter | 16–24" |
| Wheel width | 7–10.5" |
| Wheel offset | -24–28 mm |
| Tire width | 255–305 mm |
5.7 HEMI · Pickup Crew Cab
5.7L · V8 · Petrol
| Spec | Front & Rear |
|---|---|
| Wheel diameter | 20–24" |
| Wheel width | 8–10.5" |
| Wheel offset | -24–28 mm |
| Tire width | 275–305 mm |
2018 Ram 1500 Fitment FAQ
What is the bolt pattern on a 2018 Ram 1500?
The 2018 Ram 1500 uses a 5x139.7 bolt pattern (5 lug nuts on a 139.7 mm circle) with a 77.8 mm centre bore.
What size tires fit a 2018 Ram 1500?
Factory (OEM) tire sizes for the 2018 Ram 1500 include 265/75R16, 265/70R17, 275/70R17, 285/70R17, 265/65R18, 275/65R18, 255/65R19, 275/60R20, 285/55R20, 285/45R22, 305/45R22. Always confirm against the placard inside the driver's door jamb.
What wheel sizes can I put on a 2018 Ram 1500?
Depending on trim, the 2018 Ram 1500 accepts wheels from 16" up to 24" in diameter with the correct width and offset, larger diameters typically require lower-profile tires to keep the overall rolling diameter stock.
What lug nut size does a 2018 Ram 1500 use?
The 2018 Ram 1500 uses M14 x 1.5 lug nuts, torqued to 160 - 190 Nm.
Fitment data is provided as a guide. Always verify sizes against your vehicle's door-jamb placard or with our fitment experts before ordering.