2013 Buick Regal Wheel Offset

ET42 · ET45 · ET47 · ET41

Quick specs

OEM offset
ET42 · ET45 · ET47 · ET41
Wheel size
8x18 · 8.5x19 · 8.5x20 · 7x17
Bolt pattern
5×120, 5×115
Center bore
66.9 mm, 70.3 mm
Tire size
Multiple — see configurations

OEM configurations

ConfigurationFrontRearOffsetBackspacingTireBolt patternCenter boreThread
2.0T · 2.0L, I4, Petrol8x189x18ET42 / ET305.65 in235/50R185x12066.9 mmM14 x 1.5
2.0T · 2.0L, I4, Petrol8.5x19ET456.02 in245/40R195x12066.9 mmM14 x 1.5
2.0T · 2.0L, I4, Petrol8.5x20ET476.10 in255/35R205x12066.9 mmM14 x 1.5
2.4i · I4, Petrol7x17ET415.11 in235/50R175x12066.9 mmM14 x 1.5
2.4i · I4, Petrol8x189x18ET42 / ET305.65 in235/50R185x12066.9 mmM14 x 1.5
2.4i · I4, Petrol8.5x19ET456.02 in245/40R195x12066.9 mmM14 x 1.5
2.4i · I4, Petrol8.5x20ET476.10 in255/35R205x12066.9 mmM14 x 1.5
1.6T · I4, Petrol7x17ET425.15 in225/55R175x11570.3 mmM14 x 1.5
2.0T · I4, Petrol8x189x18ET42 / ET305.65 in245/45R185x11570.3 mmM14 x 1.5

See how a different wheel would sit See wheel backspacing

What happens if you change the offset?

Compare your own setup

See how a different width or offset sits versus an OEM configuration for this year.

Open full fitment calculator

Wheels and hardware for this vehicle

More on Amazon

Lug hardware

More on Amazon
  • White Knight 1309-1S-20AM Chrome M14x1.50 Open-End Bulge Acorn Lug Nut, 20 Pack

    Confirmed vehicle catalog match. Confirm seat type for your wheel.

    Check price on Amazon
  • White Knight 1709D-4 Chrome Duplex Bulge Lug Nut for Chevy/Dodge/Chrysler - 4 Piece

    Confirmed vehicle catalog match. Confirm seat type for your wheel.

    Check price on Amazon
  • Set of 20 Veritek 14x1.5mm Gloss Black Spline Drive Tuner Lug Nuts w/Key 1.40 Inch for Aftermarket Custom Wheels

    Confirmed vehicle catalog match. Confirm seat type for your wheel.

    Check price on Amazon

Wheel locks

More on Amazon
  • White Knight Wheel Accessories 41900 Chrome M14x1.50 Open End Acorn Wheel Lock Set, 4 Count(Pack of 1), 14mm x 1.50

    Confirmed vehicle catalog match. Confirm seat style for your wheel.

    Check price on Amazon

Real-World 2013 Buick Regal Wheel Setups

Observed aftermarket setups from documented Modified1 builds. These are individual build records — not OEM specifications and not clearance guarantees for every vehicle.

Common custom wheel sizes

Among builds in our database for this model year:

  • 22-inch — 2 documented builds

2 documented builds.

2013 Buick Regal custom wheel setup

Staggered · 22×9 / 22×10.5

Documented on a 2013 Buick Regal build — observed custom fitment, not a universal fit guarantee.

Wheel: Gianelle Lucca

Front
22×9 · 225/30R22
Rear
22×10.5 · 275/25R22
Compared with OEM

Compared with the 20×8.5 ET47 OEM configuration. Calculated geometry only — not fit confirmation.

  • Diameter +2" vs OEM
2013 Buick Regal custom wheel setup

Staggered · 22×9 / 22×10.5

Documented on a 2013 Buick Regal build — observed custom fitment, not a universal fit guarantee.

Wheel: Gianelle Lucca

Front
22×9 · 225/30R22
Rear
22×10.5 · 275/25R22
Compared with OEM

Compared with the 20×8.5 ET47 OEM configuration. Calculated geometry only — not fit confirmation.

  • Diameter +2" vs OEM

More specs for the 2013 Buick Regal

OEM offsets are catalog configurations, not an aftermarket “safe ET range.” Matching offset alone does not confirm clearance. Documented custom builds are observed setups only.