Is 8x6.5 the Same as 8x165.1? An 8-Lug Bolt Pattern Guide
Yes: 8x6.5 and 8x165.1 describe the same bolt-circle diameter in different units. The “8” is the lug count. The diameter is 6.5 inches, which equals 165.1 millimeters because 6.5 × 25.4 = 165.1.
The eight-lug numbers that are easy to mix up
| Pattern | Bolt-circle diameter | Relationship |
|---|---|---|
| 8x6.5 | 6.5 inches | Exactly 8x165.1 |
| 8x165.1 | 165.1 mm | Exactly 8x6.5 |
| 8x170 | 170 mm | A different pattern |
| 8x180 | 180 mm | A different pattern |
Eight holes alone do not identify the pattern. A listing that says only “8-lug” leaves the critical diameter unspecified.
Same-pattern spacing versus a conversion
If both sides are 8x6.5, the bolt pattern stays the same. Browse the 8x6.5 to 8x6.5 collection to compare those listings. If the vehicle is 8x6.5 and the wheels are 8x180, you are looking at a conversion, represented by the 8x6.5 to 8x180 collection.
The direction matters even when one listing uses inches and another uses millimeters. Translate the units first, then write down which side belongs to the vehicle.
An exact pattern match is still only one check
The equality between 6.5 inches and 165.1 millimeters does not tell you the hub diameter, the wheel center bore, the thread size or the thickness you need. Those specifications remain separate.
For example, two products can both say 8x6.5 while differing in thickness or hardware. Compare their complete descriptions and ask about any missing specification. Do not use a familiar pattern name to fill gaps in a product listing.
Keep your notes in one unit system
Use millimeters for your comparison sheet and keep the original listing wording beside each measurement. That gives you a consistent working record without losing the exact name used in the catalog. Our bolt-pattern conversion chart and contact page can help you resolve a listing question.
Frequently asked questions
Is 8x165 the same exact number as 8x165.1?
No. Some descriptions may round a measurement, but you should confirm the intended specification instead of assuming a rounded label is exact.
Will any eight-lug wheel work with an eight-lug adapter?
No. Lug count, bolt-circle diameter and the other fitment dimensions must all be checked.
Product-use note: Our products are intended for show use only. Review the current customer-service and product-use policy before ordering.
Cover image is an editorial illustration; use the actual product listing for specifications.
