Bolt pattern chart › 8x165.1

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. 2 vehicles in our database use it, listed below with the center bore, stud thread and lug torque each one actually needs.

Vehicles with a 8x165.1 bolt pattern

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 8x165.1 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 2 different hardware combinations:

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 (2019-2025); Chevrolet Silverado 2500HD (2001–2010). 1 of 2 rows are verified against two manufacturer documents; the rest are candidate values — the vehicle page shows the sources and the status of each row.

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.

Do all Chevrolet Silverado 2500HD model years use 8x165.1?

No. Chevrolet Silverado 2500HD 2020-2024 is 8x180; Chevrolet Silverado 2500HD 2011–2019 is 8x180. Check the model year before buying wheels — wheels from the other generation will not fit.

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 2 combinations: 116.7 mm bore, M14x1.5 studs + nuts (Chevrolet Silverado 2500HD); 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 besides 8x165.1

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) →