1979 Pontiac Sunbird tire and wheel sizes, bolt pattern and tire pressure

Check the tables below for every tire size, wheel size, bolt pattern (PCD), rim offset and tire pressure fitted to the 1979 Pontiac Sunbird.

1979 Pontiac Sunbird tire sizes

195/65RH14 175/80RS13 205/55RV15

Bolt pattern

4x101.6

Other years

1975 1976 1977 1978 1979 1980 1982 1983 All 1975–1994

Fitment tables

4 trims sold in 1979

Open a trim for its factory package and every alternative size, front and rear.

Pontiac Sunbird H-body

1975 – 1980 USA market 4 trims

Sunbird 2.3

78 hp · I4 175/80 SR13 3 fitments

GenerationH-body 1975–1980

Power78 hp

EngineI4, Petrol

Center bore69.1 mm

PCD4x101.6

Thread7/16" - 20 UNF

Tire size	Rim size and bolt pattern	Pressure, psi	Prices
175/80 SR13	13x5 ET37 ~~4x101.6~~	30	Tires Rims
175/80 SR13	13x6 ET37 ~~4x101.6~~	30	Tires Rims
195/65 HR14	14x6 ET35 ~~4x101.6~~	30	Tires Rims

Sunbird 2.5

90 hp · I4 175/80 SR13 3 fitments

GenerationH-body 1975–1980

Power90 hp

EngineI4, Petrol

Center bore69.1 mm

PCD4x101.6

Thread7/16" - 20 UNF

Tire size	Rim size and bolt pattern	Pressure, psi	Prices
175/80 SR13	13x5 ET37 ~~4x101.6~~	30	Tires Rims
175/80 SR13	13x6 ET37 ~~4x101.6~~	30	Tires Rims
195/65 HR14	14x6 ET35 ~~4x101.6~~	30	Tires Rims

Sunbird 3.8

109 hp · V6 175/80 SR13 3 fitments

GenerationH-body 1975–1980

Power109 hp

EngineV6, Petrol

Center bore69.1 mm

PCD4x101.6

Thread7/16" - 20 UNF

Tire size	Rim size and bolt pattern	Pressure, psi	Prices
175/80 SR13	13x5 ET37 ~~4x101.6~~	30	Tires Rims
175/80 SR13	13x6 ET37 ~~4x101.6~~	30	Tires Rims
195/65 HR14	14x6 ET35 ~~4x101.6~~	30	Tires Rims

Sunbird 5.0

139 hp · V8 175/80 SR13 3 fitments

GenerationH-body 1975–1980

Power139 hp

EngineV8, Petrol

Center bore69.1 mm

PCD4x101.6

Thread7/16" - 20 UNF

Tire size	Rim size and bolt pattern	Pressure, psi	Prices
175/80 SR13	13x6 ET37 ~~4x101.6~~	30	Tires Rims
195/65 HR14	14x6 ET35 ~~4x101.6~~	30	Tires Rims
205/55 VR15	15x6.5 ET35 ~~4x101.6~~	33	Tires Rims

Reading the table

What these columns mean

OE fitment: The package fitted at the factory for that trim.
Alternative: A size the car accepts without modification — plus-sizing, winter setups or optional wheels.
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.
Staggered: A wider tire on the rear axle than the front. Front-to-back rotation is not possible.
Thread size: Lug bolt or nut thread — needed when buying aftermarket fasteners.