8x6.5 Bolt Pattern: PCD, Meaning & Wheel Fitment
8x6.5 means 8 lug holes arranged on a bolt circle with a diameter of 165.1 mm (about 6.5 inches).
8x6.5 Quick Facts
What Does 8x6.5 Mean?
The first number tells you how many wheel studs or lug holes the pattern uses. The second number is the pitch circle diameter (PCD): the diameter of the imaginary circle that passes through the centers of those studs. On this page, the PCD is written in inches.
8x6.5 in Millimeters
A 8x6.5 pattern has a 6.5-inch PCD, equal to 165.1 mm. The same bolt-circle diameter is also commonly written as 8x165.1.
| Bolt pattern | 8x6.5 |
|---|---|
| Lug count | 8 |
| PCD | 165.1 mm |
| PCD in inches | 6.5 in |
| Equivalent notation | 8x165.1 |
Is 8x6.5 the Same as 8x165.1?
Yes. 8x6.5 and 8x165.1 describe the same bolt-circle diameter using metric and inch units. That does not mean every wheel with this bolt pattern automatically fits every vehicle; the remaining wheel specifications still need to match.
How to Measure the 8x6.5 Bolt Pattern
For an even-number lug pattern, measure from the center of one wheel stud to the center of the stud directly opposite it. That diameter is the PCD.
Because small measurement errors can lead to the wrong wheel, use the vehicle or wheel manufacturer's specification whenever possible.
Does a Matching 8x6.5 Bolt Pattern Guarantee Wheel Fitment?
No. Bolt pattern is only one part of wheel compatibility. You must also check center bore, wheel diameter, wheel width, offset/backspacing, brake clearance, lug-seat/thread hardware and load capacity before installing a wheel.
Check Your Vehicle Before Choosing Wheels
Use the vehicle fitment finder for vehicle-specific specifications, and use the wheel offset calculator to understand position and clearance changes.
Related 8-Lug Bolt Patterns
8x6.5 FAQ
What does 8x6.5 bolt pattern mean?
It means the wheel uses 8 lug holes on a 165.1 mm pitch circle diameter.
What is 8x6.5 in millimeters?
The PCD is 165.1 mm, equal to 6.5 inches.
Is 8x6.5 the same as 8x165.1?
Yes. They describe the same bolt-circle diameter in different units.
Do all wheels with a 8x6.5 pattern fit?
No. Center bore, offset, width, diameter, brake clearance, lug hardware and load requirements must also be compatible.