tirewheelguide

2018 Ram 2500 tire and wheel sizes, bolt pattern and tire pressure

Bolt pattern 8x165.1 on every 2018 trim.

Tires for the 2018 Ram 2500

Sizes most trims come with first. Open your trim below for its exact size.

  1. 275/70R18 Best-rated standard on 2 trims · optional on 2
    Check price on Amazon · 275/70R18
  2. 265/70R17 Best-rated standard on 1 trim · optional on 3
    Check price on Amazon · 265/70R17
  3. 245/70R17 Best-rated standard on 1 trim
    Check price on Amazon · 245/70R17

Also listed: 255/65R19 285/60R20 305/55R20 305/45R22

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Trims sold in 2018
4
Generation
DS/DJ

4 trims sold in 2018

Open a trim for its tire and rim sizes, bolt pattern and tire pressure.

Ram 2500 DS/DJ

2011–2018 4 trims
2500 5.7i 383 hp · 5.7L V8 245/70R17 116S 6 fitments
Generation
DS/DJ · 2011–2018
Power
383 hp
Engine
5.7L V8, Petrol
Center bore
121.3 mm
Bolt pattern
8x165.1
Thread
M14 x 1.5
Check price on Amazon · 245/70R17 Wheels 17x7.5 ET57 · 8x165.1 · 121.3 mm on Amazon
Tire sizeRim size and bolt patternPressure, psi
245/70R17 116SRim 17x7.5 ET57 8x165.149 psi
265/70R17 118SRim 17x8 ET45.72 8x165.149 psi
265/70R17 118SRim 17x8 ET43.2 8x165.149 psi
275/70R18 118TRim 18x8 ET57.15 8x165.151 psi
255/65R19 112TRim 19x8 ET50 8x165.152 psi
285/60R20 115TRim 20x8 ET54.65 8x165.152 psi

How to read 116S: 116 is the load index (up to 2,756 lb / 1,250 kg per tire) and S the speed rating (up to 112 mph / 180 km/h). ET57 is the wheel offset: how far the mounting face sits from the rim centre, in millimetres.

2500 6.4i 410 hp · 6.4L V8 275/70R18 118T 6 fitments
Generation
DS/DJ · 2011–2018
Power
410 hp
Engine
6.4L V8, Petrol
Center bore
121.3 mm
Bolt pattern
8x165.1
Thread
M14 x 1.5
Check price on Amazon · 275/70R18 Wheels 18x8 ET57.15 · 8x165.1 · 121.3 mm on Amazon
Tire sizeRim size and bolt patternPressure, psi
275/70R18 118TRim 18x8 ET57.15 8x165.149 psi
285/60R20 115HRim 20x8 ET54.65 8x165.151 psi
265/70R17 118SRim 17x8 ET45.72 8x165.149 psi
265/70R17 118SRim 17x8 ET43.2 8x165.149 psi
255/65R19 112TRim 19x8 ET50 8x165.152 psi
305/45R22 112VRim 22x9 ET45 8x165.152 psi

How to read 118T: 118 is the load index (up to 2,910 lb / 1,320 kg per tire) and T the speed rating (up to 118 mph / 190 km/h). ET57.15 is the wheel offset: how far the mounting face sits from the rim centre, in millimetres.

2500 6.7TD 350 hp · 6.7L I6 · Diesel 265/70R17 118S 6 fitments
Generation
DS/DJ · 2011–2018
Power
350 hp
Engine
6.7L I6, Diesel
Center bore
121.3 mm
Bolt pattern
8x165.1
Thread
M14 x 1.5
Check price on Amazon · 265/70R17 Wheels 17x8 ET45.72 · 8x165.1 · 121.3 mm on Amazon
Tire sizeRim size and bolt patternPressure, psi
265/70R17 118SRim 17x8 ET45.72 8x165.149 psi
265/70R17 118SRim 17x8 ET43.2 8x165.149 psi
275/70R18 118TRim 18x8 ET57.15 8x165.151 psi
285/60R20 115TRim 20x8 ET54.65 8x165.152 psi
255/65R19 112TRim 19x8 ET50 8x165.152 psi
305/55R20 115HRim 20x9 ET45 8x165.152 psi

How to read 118S: 118 is the load index (up to 2,910 lb / 1,320 kg per tire) and S the speed rating (up to 112 mph / 180 km/h). ET45.72 is the wheel offset: how far the mounting face sits from the rim centre, in millimetres.

2500 6.7TD 370 hp · 6.7L I6 · Diesel 275/70R18 118T 6 fitments
Generation
DS/DJ · 2011–2018
Power
370 hp
Engine
6.7L I6, Diesel
Center bore
121.3 mm
Bolt pattern
8x165.1
Thread
M14 x 1.5
Check price on Amazon · 275/70R18 Wheels 18x8 ET57.15 · 8x165.1 · 121.3 mm on Amazon
Tire sizeRim size and bolt patternPressure, psi
275/70R18 118TRim 18x8 ET57.15 8x165.151 psi
285/60R20 115TRim 20x8 ET54.65 8x165.152 psi
265/70R17 118SRim 17x8 ET45.72 8x165.149 psi
265/70R17 118SRim 17x8 ET43.2 8x165.149 psi
255/65R19 112TRim 19x8 ET50 8x165.152 psi
305/55R20 115HRim 20x9 ET45 8x165.152 psi

How to read 118T: 118 is the load index (up to 2,910 lb / 1,320 kg per tire) and T the speed rating (up to 118 mph / 190 km/h). ET57.15 is the wheel offset: how far the mounting face sits from the rim centre, in millimetres.

What these columns mean
Rim size
Rim diameter × width in inches, and the factory offset (ET) in millimetres, e.g. 18x7.5 ET25.
Bolt pattern (PCD)
Number of studs and the diameter of the circle they sit on. It must match exactly.
Center bore
Diameter of the hub hole. Larger aftermarket bores need hub-centric rings.
Pressure
Recommended cold inflation pressure for that axle, in psi.
Thread size
Lug bolt or nut thread — needed when buying aftermarket fasteners.
Trims sold in 2018
4
Generation
DS/DJ
Other years
All years (2011–2026)

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