8x165.1 Bolt Pattern — what cars have it
A 8x165.1 bolt pattern means 8 lug holes on a 165.1 mm circle — 6.5 inches, so it is also written 8x6.5. One vehicle in our database uses it, listed below with the center bore, stud thread and lug torque each one actually needs.
| Pattern | 8x165.1 mm |
|---|---|
| In inches | 8x6.5 (165.1 ÷ 25.4 = 6.5) |
| Lug count | 8 |
| In our database | 1 vehicle, 1 generation, 1 verified against two manufacturer sources |
Vehicles with a 8x165.1 bolt pattern
| Vehicle | Years | Center bore | Thread | Lug torque | Status |
|---|---|---|---|---|---|
| Ram 2500 | 2019-2024 | 121.3 mm | M14x1.5 | 130 lb-ft | verified |
Each vehicle page cites the manufacturer documents behind these figures. Candidate rows are pending two-source verification and show a warning on their page.
Same pattern, not the same wheel
A 8x165.1 wheel bolts onto any 8x165.1 hub, but it only fits if the center bore clears the hub and the nuts or bolts match the studs. Across the vehicles above, 8x165.1 comes with one hardware combination:
| Center bore | Thread | Fastener | Seen on |
|---|---|---|---|
| 121.3 mm | M14x1.5 | studs + nuts | Ram 2500 |
A wheel with a smaller bore than the hub will not seat; a larger bore needs a hub-centric ring. Thread and seat type decide which lug nuts to use, and the torque figure is per vehicle, not per pattern — see the lug nut torque chart.
8x165.1 — frequently asked
Is 8x165.1 the same as 8x6.5?
Yes. 8x165.1 and 8x6.5 are the same bolt pattern written in metric and in inches: 165.1 mm ÷ 25.4 = 6.5 in. A wheel marked either way fits the same 8-lug hub.
What cars have a 8x165.1 bolt pattern?
In our database: Ram 2500 (2019-2024). Each is stated from manufacturer documents — the vehicle page shows the source and whether the row is verified.
Is 8x165.1 the same as 8x170?
No. 8x165.1 (8x6.5) and 8x170 (8x6.69) are 4.9 mm apart. The numbers look similar and both are 8-lug, but a 8x170 wheel will not bolt onto a 8x165.1 hub correctly and must not be forced.
What center bore and lug nuts does a 8x165.1 wheel need?
That depends on the vehicle, not the pattern. Across the vehicles above, 8x165.1 comes with one combination: 121.3 mm bore, M14x1.5 studs + nuts (Ram 2500). The wheel's center bore must be at least the hub's diameter; a larger bore needs a hub-centric ring.
Other 8-lug patterns
8x170 (8x6.69) · 8x180 (8x7.09) — all 8-lug patterns with vehicle pages here. Full list on the bolt pattern conversion chart.
Tools for 8x165.1
Bolt pattern finder — look up any vehicle →
Bolt pattern converter — 8x165.1 ↔ 8x6.5 →
Measure a pattern you can't identify →
How to measure a bolt pattern (guide) →