1979 Plymouth Horizon tire and wheel sizes, bolt pattern and tire pressure

Bolt pattern 4x100 on every 1979 trim.

Tires for the 1979 Plymouth Horizon

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

155xR13 standard on 1 trim

Check price on Amazon · 155xR13
165/80R13 Best-rated optional on 1 trim

Check price on Amazon · 165/80R13
175/70R14 Best-rated optional on 1 trim

Check price on Amazon · 175/70R14

Also listed: 185/65R14

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Trims sold in 1979: 1
Generation: L-body
Other years: 1978
1979
1980
1981
1982
1983
1984
1985
All years (1978–1990)

1 trim sold in 1979

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

Plymouth Horizon L-body

1978–1990 1 trim

Horizon 1.7 70 hp · I4 155x R13 81Q 4 fitments

Generation: L-body · 1978–1990
Power: 70 hp
Engine: I4, Petrol
Center bore: 57.1 mm
Bolt pattern: 4x100
Thread: M12 x 1.5

Check price on Amazon · 155xR13 Wheels 13x5 ET39 · 4x100 · 57.1 mm on Amazon

Tire size	Rim size and bolt pattern	Pressure, psi
155x R13 81Q	Rim 13x5 ET39 4x100	26 psi
165/80R13 81Q	Rim 13x5 ET45 4x100	26 psi
175/70R14 79S	Rim 14x5.5 ET45 4x100	28 psi
185/65R14 79T	Rim 14x5.5 ET45 4x100	29 psi

How to read 81Q: 81 is the load index (up to 1,019 lb / 462 kg per tire) and Q the speed rating (up to 99 mph / 160 km/h). ET39 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.