8x170 Bolt Pattern: PCD, Meaning & Wheel Fitment
8x170 means 8 lug holes arranged on a bolt circle with a diameter of 170 mm (about 6.693 inches).
8x170 Quick Facts
What Does 8x170 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.
8x170 in Inches
A 8x170 pattern has a PCD of about 6.693 inches.
| Bolt pattern | 8x170 |
|---|---|
| Lug count | 8 |
| PCD | 170 mm |
| PCD in inches | 6.693 in |
How to Measure the 8x170 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 8x170 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
8x170 FAQ
What does 8x170 bolt pattern mean?
It means the wheel uses 8 lug holes on a 170 mm pitch circle diameter.
What is 8x170 in inches?
The PCD is about 6.693 inches.
Do all wheels with a 8x170 pattern fit?
No. Center bore, offset, width, diameter, brake clearance, lug hardware and load requirements must also be compatible.