2006 Dodge Ram SRT tire and wheel sizes, bolt pattern and tire pressure

Bolt pattern 5x139.7 on every 2006 trim.

Tires for the 2006 Dodge Ram SRT

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

275/55R20 Best-rated standard on 1 trim

Check price on Amazon · 275/55R20
275/50R21 Best-rated optional on 1 trim

Check price on Amazon · 275/50R21
305/40R22 Best-rated optional on 1 trim

Check price on Amazon · 305/40R22

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Trims sold in 2006: 1
Generation: DR/DH
Other years: 2004
2005
2006
All years (2004–2006)

1 trim sold in 2006

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

Dodge Ram SRT DR/DH

2004–2006 1 trim

Ram SRT 8.3i 510 hp · 8.3L V10 275/55R20 115H 3 fitments

Generation: DR/DH · 2004–2006
Power: 510 hp
Engine: 8.3L V10, Petrol
Center bore: 77.8 mm
Bolt pattern: 5x139.7
Thread: 9/16" - 18 UNF

Check price on Amazon · 275/55R20 Wheels 20x9 ET25.4 · 5x139.7 · 77.8 mm on Amazon

Tire size	Rim size and bolt pattern	Pressure, psi
275/55R20 115H	Rim 20x9 ET25.4 ~~5x139.7~~	49 psi
305/40R22 112V	Rim 22x10 ET25.4 ~~5x139.7~~	52 psi
275/50R21 114H	Rim 21x9 ET25 ~~5x139.7~~	49 psi

How to read 115H: 115 is the load index (up to 2,679 lb / 1,215 kg per tire) and H the speed rating (up to 130 mph / 210 km/h). ET25.4 is the wheel offset: how far the mounting face sits from the rim centre, in millimetres. Compare offsets in the wheel offset calculator.

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.