Bolt Pattern Cross Reference and Wheel Sizes

What Wheels Fit MERCURY COUGAR

4 X 108 Bolt Pattern Measurement and Specifications

4 Lug Bolt Pattern Measurement The 4 X 108 Bolt Pattern or Pitch Circle Diameter (PCD) is made up of the stud count (4) and the bolt circle measurement (108), the notional circle determined by the center position of the studs.

Equivalent Bolt Pattern: 4 X 4.25

How To Measure 4 Lug Bolt Patterns

Measure 4 lug wheel bolt patterns from center to center distance between two studs that are across the hub from each other. This measurement is your bolt pattern diameter. Learn more about wheel dimensions below.

What Vehicles Use Wheels With 4 X 108 Bolt Pattern?

The 4 X 108 bolt pattern is common to FORD, MERCURY, SAAB, AUDI, VOLVO, PORSCHE, PEUGEOT, ALFA ROMEO and OLDSMOBILE vehicles. A full list of vehicle makes and models appears below.

Bolt Pattern Torque Sequence / Specifications:

4 X 108 Bolt Pattern Torque Sequence Specifications: 1, 3, 2, 4

Note: Alloy wheels should always be installed using a torque wrench ensuring proper mount. Check your vehicle owner manual for proper specifications. How To Properly Torque Lug Nuts / Lug Bolts

Stud Size	Typical Torque Range in Ft/Lbs	Minimum Thread Engagement (turns)
12 x 1.5 mm	70 - 80	6.5
12 x 1.25 mm	70 - 80	8
14 x 1.5 mm	85 - 90	7.5
14 x 1.25 mm	85 - 90	9
7/16 in.	70 - 80	8
1/2 in.	75 - 85	8
9/16 in.	135 - 145	8

Wheel Bolt Torque and Stretch

It is prudent to re-torque wheels after about 60 to 90 miles (100km to 150km) of driving. Learn more about lug nuts and torque.

Hub Center Bore

Hub Centerbore Measurements Hub Center Bore: Relates to the center hole in the wheel that centers the wheel on the hub of the car. Since most wheels are mass produced, they have a large center bore to accommodate several different vehicles. If this is the case, it is recommended that you use a hub ring. Hub rings are hard plastic or metal ring that fits between the wheel and the vehicle. This centers the wheel perfectly on the hub ensuring that there is no run out when the wheel is installed on to the vehicle. Without hub rings it is possible to get vibrations even if the wheel / tire assembly is perfectly balanced.

Wheel Offset

Wheel offset is the distance from the mounting surface of the wheel to the true center line of the rim. A positive offset means the mounting surface of the wheel is positioned in front of the true center line of the rim / tire assembly. This in effect brings the tire in to the fender well more. Conversely, a negative offset means the mounting surface of the wheel is behind the true center line of the rim / tire assembly. This will cause the tire to stick out away from the vehicle.

Wheel Offset

H = High - Positive Offset, typically FWD (Front Wheel Drive) +45, 40, 35 offsets

M = Medium - Neutral Offset, typically RWD (Rear Wheel Drive) +20 offset

L = Low - Zero to Negative Offset, Offset typically RWD (Rear Wheel Drive) 0 offset

Wheel Offset Chart

Wheels, Spacers and Adapters

4 X 108 Wheel Spacers ~ Adapters ~ Wheels

Wheel Bolt Pattern by Make and Model

Comparing to MERCURY COUGAR Center Bore: 63.4

Vehicle Make(s) with 4 X 108 Bolt Pattern:

ALFA ROMEO ~ FORD ~ MERCURY ~ OLDSMOBILE ~ PEUGEOT ~ SAAB ~ VOLVO ~ All Makes(s)

1968 > ALFA ROMEO SPIDER

Bolt Pattern: 4 X 108
Stud Size: 12 X 1.5
Hub Center Bore: 69.1
> Bolt Pattern Details and Matching Vehicles
OEM Wheel Size(s): 14 X 6 15 X 6
Look-up: Spacers ~ Adapters ~ Wheels/Tires
Torque Sequence: 1, 3, 2, 4
75 to 85 lb-ft.
7 Turns Minimum

1995 > FORD CONTOUR

Bolt Pattern: 4 X 108
Stud Size: 12 X 1.5
Hub Center Bore: 63.4
Offset: H
> Bolt Pattern Details and Matching Vehicles
OEM Wheel Size(s): 14 X 6
Look-up: Spacers ~ Adapters ~ Wheels/Tires
Torque Sequence: 1, 3, 2, 4
75 to 85 lb-ft.
7 Turns Minimum

1995-00 FORD CONTOUR

Bolt Pattern: 4 X 108
Stud Size: 12 X 1.5
Hub Center Bore: 63.4
> Bolt Pattern Details and Matching Vehicles
Look-up: Spacers ~ Adapters ~ Wheels/Tires
Torque Sequence: 1, 3, 2, 4
75 to 85 lb-ft.
7 Turns Minimum

1981-90 FORD ESCORT

Bolt Pattern: 4 X 108
Stud Size: 12 X 1.5
Hub Center Bore: 63.4
Offset: H
> Bolt Pattern Details and Matching Vehicles
OEM Wheel Size(s): 13 X 5.5
Look-up: Spacers ~ Adapters ~ Wheels/Tires
Torque Sequence: 1, 3, 2, 4
75 to 85 lb-ft.
7 Turns Minimum

1981-85 FORD EXP

1978-88 FORD FAIRMONT, THUNDERBIRD

Bolt Pattern: 4 X 108
Stud Size: 1/2-RH
Hub Center Bore: 63.4
Offset: M
> Bolt Pattern Details and Matching Vehicles
OEM Wheel Size(s): 14 X 5.5
Look-up: Spacers ~ Adapters ~ Wheels/Tires
Torque Sequence: 1, 3, 2, 4
75 to 85 lb-ft.
8 Turns Minimum

2000 > FORD FOCUS

Bolt Pattern: 4 X 108
Stud Size: 12 X 1.5
Hub Center Bore: 63.4
Offset: H
> Bolt Pattern Details and Matching Vehicles
OEM Wheel Size(s): 15 X 6
Look-up: Spacers ~ Adapters ~ Wheels/Tires
Torque Sequence: 1, 3, 2, 4
75 to 85 lb-ft.
7 Turns Minimum

2000-08 FORD FOCUS, SVT

1978-88 FORD GRANADA, LTD II

1978-88 FORD GRANADA, LTD II,FAIRMONT,T-BIRD

Bolt Pattern: 4 X 108
Stud Size: 1/2-RH
Hub Center Bore: 63.4
> Bolt Pattern Details and Matching Vehicles
Look-up: Spacers ~ Adapters ~ Wheels/Tires
Torque Sequence: 1, 3, 2, 4
75 to 85 lb-ft.
8 Turns Minimum

1979-93 FORD MUSTANG

Bolt Pattern: 4 X 108
Stud Size: 1/2-RH
Hub Center Bore: 63.4
Offset: M/H
> Bolt Pattern Details and Matching Vehicles
OEM Wheel Size(s): 14 X 6
Look-up: Spacers ~ Adapters ~ Wheels/Tires
Torque Sequence: 1, 3, 2, 4
75 to 85 lb-ft.
8 Turns Minimum

1991-93 FORD MUSTANG 5.0 GT

Bolt Pattern: 4 X 108
Stud Size: 1/2-RH
Hub Center Bore: 63.4
Offset: M
> Bolt Pattern Details and Matching Vehicles
OEM Wheel Size(s): 16 X 7
Look-up: Spacers ~ Adapters ~ Wheels/Tires
Torque Sequence: 1, 3, 2, 4
75 to 85 lb-ft.
8 Turns Minimum

1985-91 FORD MUSTANG 5.0GT

Bolt Pattern: 4 X 108
Stud Size: 1/2-RH
Hub Center Bore: 63.4
Offset: M
> Bolt Pattern Details and Matching Vehicles
OEM Wheel Size(s): 15 X 7
Look-up: Spacers ~ Adapters ~ Wheels/Tires
Torque Sequence: 1, 3, 2, 4
75 to 85 lb-ft.
8 Turns Minimum

1991-93 FORD MUSTANG 5.0GT

1974-78 FORD MUSTANG II

1981-88 FORD T-BIRD

1983-94 FORD TEMPO

1981-88 FORD THUNDERBIRD

1974-86 MERCURY CAPRI

Bolt Pattern: 4 X 108
Stud Size: 1/2-RH
Hub Center Bore: 63.4
> Bolt Pattern Details and Matching Vehicles
OEM Wheel Size(s): 14 X 5.5
Look-up: Spacers ~ Adapters ~ Wheels/Tires
Torque Sequence: 1, 3, 2, 4
75 to 85 lb-ft.
8 Turns Minimum

1980-85 MERCURY COUGAR

Bolt Pattern: 4 X 108
Stud Size: 12 X 1.5
Hub Center Bore: 63.4
> Bolt Pattern Details and Matching Vehicles
OEM Wheel Size(s): 14 X 5.5
Look-up: Spacers ~ Adapters ~ Wheels/Tires
Torque Sequence: 1, 3, 2, 4
75 to 85 lb-ft.
7 Turns Minimum

1985-88 MERCURY COUGAR

Bolt Pattern: 4 X 108
Stud Size: 1/2-RH
Hub Center Bore: 63.4
> Bolt Pattern Details and Matching Vehicles
OEM Wheel Size(s): 15 X 7
Look-up: Spacers ~ Adapters ~ Wheels/Tires
Torque Sequence: 1, 3, 2, 4
75 to 85 lb-ft.
8 Turns Minimum

1999 > MERCURY COUGAR

Bolt Pattern: 4 X 108
Stud Size: 12 X 1.5
Hub Center Bore: 63.4
> Bolt Pattern Details and Matching Vehicles
OEM Wheel Size(s): 16 X 6
Look-up: Spacers ~ Adapters ~ Wheels/Tires
Torque Sequence: 1, 3, 2, 4
75 to 85 lb-ft.
7 Turns Minimum

1999-02 MERCURY COUGAR

1982-83 MERCURY LN-7

Bolt Pattern: 4 X 108
Stud Size: 12 X 1.5
Hub Center Bore: 63.4
> Bolt Pattern Details and Matching Vehicles
OEM Wheel Size(s): 13 X 5.5
Look-up: Spacers ~ Adapters ~ Wheels/Tires
Torque Sequence: 1, 3, 2, 4
75 to 85 lb-ft.
7 Turns Minimum

1981-87 MERCURY LYNX

1985-89 MERCURY MERKUR XR-4TI

Bolt Pattern: 4 X 108
Stud Size: 12 X 1.5
Hub Center Bore: 63.4
> Bolt Pattern Details and Matching Vehicles
OEM Wheel Size(s): 14 X 6
Look-up: Spacers ~ Adapters ~ Wheels/Tires
Torque Sequence: 1, 3, 2, 4
75 to 85 lb-ft.
7 Turns Minimum

1995-00 MERCURY MYSTIQUE

1995-96 MERCURY MYSTIQUE

Bolt Pattern: 4 X 108
Stud Size: 12 X 1.5
Hub Center Bore: 63.4
> Bolt Pattern Details and Matching Vehicles
OEM Wheel Size(s): 15 X 6
Look-up: Spacers ~ Adapters ~ Wheels/Tires
Torque Sequence: 1, 3, 2, 4
75 to 85 lb-ft.
7 Turns Minimum

1983-85 MERCURY TOPAZ

1986-94 MERCURY TOPAZ

1992-94 MERCURY TOPAZ

ALL OLDSMOBILE 106, 206, 306, 307, 406

Bolt Pattern: 4 X 108
Stud Size:
Hub Center Bore: 65
> Bolt Pattern Details and Matching Vehicles
Look-up: Spacers ~ Adapters ~ Wheels/Tires
Torque Sequence: 1, 3, 2, 4

ALL PEUGEOT 106, 206, 306, 307, 406

Bolt Pattern: 4 X 108
Hub Center Bore: 65
> Bolt Pattern Details and Matching Vehicles
OEM Wheel Size(s): 15 X 6
Look-up: Spacers ~ Adapters ~ Wheels/Tires
Torque Sequence: 1, 3, 2, 4

1988-94 SAAB 900

Bolt Pattern: 4 X 108
Stud Size: 12 X 1.25
Hub Center Bore: 65.1
Offset: H
> Bolt Pattern Details and Matching Vehicles
OEM Wheel Size(s): 15 X 6
Look-up: Spacers ~ Adapters ~ Wheels/Tires
Torque Sequence: 1, 3, 2, 4
75 to 85 lb-ft.
7 Turns Minimum

1986-97 SAAB 9000

1998 SAAB 9000, 9000CSE

Bolt Pattern: 4 X 108
Stud Size: 12 X 1.25
Hub Center Bore: 65.1
Offset: H
> Bolt Pattern Details and Matching Vehicles
OEM Wheel Size(s): 16 X 7
Look-up: Spacers ~ Adapters ~ Wheels/Tires
Torque Sequence: 1, 3, 2, 4
75 to 85 lb-ft.
7 Turns Minimum

1992-93 VOLVO 850

Bolt Pattern: 4 X 108
Stud Size: 12 X 1.5b
Hub Center Bore: 65.1
Offset: H
> Bolt Pattern Details and Matching Vehicles
OEM Wheel Size(s): 15 X 6.5
Look-up: Spacers ~ Adapters ~ Wheels/Tires
Torque Sequence: 1, 3, 2, 4
75 to 85 lb-ft.
7 Turns Minimum

Additional Wheel / Measurement Information

Key Identifying Wheel Dimensions: Wheel Bolt or Lug Pattern (or bolt circle, lug circle, lug pattern, etc.) is the measured diameter of an imaginary circle formed by the centers of the wheel lugs or bolt holes. Bolt patterns can be 3, 4, 5, 6, 7, 8 or 10 lug holes. A bolt circle of 5 x 4.5 would indicate a 5 lug bolt pattern on a circle with a diameter of 4.5 inches.

Wheel Dimensions

There are four important measurements that are used to categorize and identify a wheel for fitment purposes.

Wheel Dimensions

Rim Diameter The actual diameter of the wheel at the point where the tire bead seats (NOT the outer lip of the rim).
Rim Width Measure from the inside of the outer lip at the bead seating point to the inner lip.
Back Spacing From the inside of the wheel at the point where it contacts the hub, brake drum or axle flange to the inside edge (lip) of the wheel.
Bolt Pattern The measured diameter of an imaginary circle formed by the centers of the wheel lugs or bolt holes.

How To Measure Wheel Bolt Pattern

If there is an EVEN number of lugs: Measure center-to-center on lugs directly across from each other.

If there is an ODD number of lugs: Measure from the CENTER of one lug to the OUTER EDGE of the hole diagonally across from it.

Lug Nut Types

Lug Nuts and Torque

Common Bolt Pattern Conversions

4-100

4x3.94

4-108

4x4.25

4-110

4x4.33

4-114.3

4x4.5

5-100

5x3.94

5-108

5x4.25

5-110

5x4.33

5-112

5x4.41

5-114.3

5x4.5

5-115

5x4.52

5-120

5x4.72

5-120.7

5x4.75

5-127

5x5

5-130

5x5.12

5-135

5x5.3

5-139.7

5x5.5

6-114.3

6x4.5

6-127

6x5

6-135

6x5.3

6-139.7

6x5.5

8-165.1

8x6.5

8-170

8x6.69

This information is accurate to the best of our knowledge. No warranties or guarantees are expressed or implied as to the accuracy of the information provided on this site. Use of this site constitutes your agreement to these terms.