1986 Mercury Topaz tire and wheel sizes, bolt pattern and tire pressure

Bolt pattern 4x108 on every 1986 trim.

Tires for the 1986 Mercury Topaz

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

  1. 175/80R13 Best-rated standard on 1 trim
  2. 185/70R14 Best-rated standard on 1 trim
  3. 185/75R13 Best-rated optional on 1 trim

Also listed: 195/65R14 185/65R15 195/60R15 205/55R15 185/55R16 195/55R16 205/50R16 195/45R17 205/45R17

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Trims sold in 1986
2
Generation
I

2 trims sold in 1986

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

Mercury Topaz I

1983–1987 2 trims
Topaz 2.0D N/A · I4 · Diesel 175/80R13 81S 6 fitments
Generation
I · 1983–1987
Power
N/A
Engine
I4, Diesel
Center bore
63.4 mm
Bolt pattern
4x108
Thread
M12 x 1.5
Tire sizeRim size and bolt patternPressure, psi
175/80R13 81SRim 13x5 ET37.5 4x10826 psi
185/75R13 81SRim 13x5.5 ET37.5 4x10829 psi
185/65R15 80TRim 15x5.5 ET37 4x10830 psi
185/55R16 79HRim 16x6 ET38 4x10833 psi
195/55R16 79HRim 16x6.5 ET37 4x10833 psi
195/45R17 77VRim 17x6.5 ET37 4x10836 psi

How to read 81S: 81 is the load index (up to 1,019 lb / 462 kg per tire) and S the speed rating (up to 112 mph / 180 km/h). ET37.5 is the wheel offset: how far the mounting face sits from the rim centre, in millimetres. Compare offsets in the wheel offset calculator.

Topaz 2.3i N/A · I4 185/70R14 81S 6 fitments
Generation
I · 1983–1987
Power
N/A
Engine
I4, Petrol
Center bore
63.4 mm
Bolt pattern
4x108
Thread
M12 x 1.5
Tire sizeRim size and bolt patternPressure, psi
185/70R14 81SRim 14x5 ET37.5 4x10829 psi
195/65R14 80TRim 14x5.5 ET37.5 4x10830 psi
195/60R15 79TRim 15x6 ET38 4x10830 psi
205/55R15 80HRim 15x6.5 ET37 4x10833 psi
205/50R16 80HRim 16x6.5 ET37 4x10833 psi
205/45R17 79VRim 17x7 ET35 4x10836 psi

How to read 81S: 81 is the load index (up to 1,019 lb / 462 kg per tire) and S the speed rating (up to 112 mph / 180 km/h). ET37.5 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 1986
2
Generation
I
Other years
All years (1983–1994)

Considering a different size?

Compare your current tire size with the one you want: diameter change, ground clearance and speedometer error.

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