1966 Ford Mustang tire and wheel sizes, bolt pattern and tire pressure

Bolt patterns 4x114.3 or 5x114.3, depending on the market version.

Tires for the 1966 Ford Mustang

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

205/70R14 Best-rated standard on 1 trim · optional on 1

Check price on Amazon · 205/70R14
185/75R14 Best-rated standard on 1 trim

Check price on Amazon · 185/75R14
205/65R15 Best-rated optional on 2 trims

Check price on Amazon · 205/65R15

Also listed: 225/60R15 225/55R16

Best tires for the 1966 Ford Mustang

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Trims sold in 1966: 2
Generation: I
Other years: 1964
1965
1966
1967
1968
1969
1970
1971
All years (1964–2026)

Best tires for the 1966 Ford Mustang

2 trims sold in 1966

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

Ford Mustang I

1964–1973 2 trims

Mustang 3.3 120 hp · 3.3L I6 185/75R14 92S 4 fitments

Generation: I · 1964–1973
Power: 120 hp
Engine: 3.3L I6, Petrol
Center bore: 61.5 mm
Bolt pattern: 4x114.3
Thread: 1/2" - 20 UNF

Check price on Amazon · 185/75R14 Wheels 14x6 ET12 · 4x114.3 · 61.5 mm on Amazon

Tire size	Rim size and bolt pattern	Pressure, psi
185/75R14 92S	Rim 14x6 ET12 ~~4x114.3~~	28 psi
205/70R14 92S	Rim 14x6 ET12 ~~4x114.3~~	28 psi
205/65R15 91T	Rim 15x6.5 ET15 ~~4x114.3~~	30 psi
225/60R15 91T	Rim 15x7 ET10 ~~4x114.3~~	30 psi

How to read 92S: 92 is the load index (up to 1,389 lb / 630 kg per tire) and S the speed rating (up to 112 mph / 180 km/h). ET12 is the wheel offset: how far the mounting face sits from the rim centre, in millimetres. Compare offsets in the wheel offset calculator.

Mustang 4.7 N/A · 4.7L V8 205/70R14 92S 4 fitments

Generation: I · 1964–1973
Power: N/A
Engine: 4.7L V8, Petrol
Center bore: 61.5 mm
Bolt pattern: 5x114.3
Thread: 1/2" - 20 UNF

Check price on Amazon · 205/70R14 Wheels 14x6 ET12 · 5x114.3 · 61.5 mm on Amazon

Tire size	Rim size and bolt pattern	Pressure, psi
205/70R14 92S	Rim 14x6 ET12 ~~5x114.3~~	28 psi
205/65R15 91T	Rim 15x6.5 ET15 ~~5x114.3~~	30 psi
225/60R15 91T	Rim 15x7 ET10 ~~5x114.3~~	30 psi
225/55R16 91V	Rim 16x7.5 ET0 ~~5x114.3~~	30 psi

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.