2015 Buick Regal Wheel Offset
ET42 · ET45 · ET41 · ET40
Quick specs
- OEM offset
- ET42 · ET45 · ET41 · ET40
- Wheel size
- 8x18 · 8.5x19 · 8.5x20 · 7x17
- Tire size
- Multiple — see configurations
OEM configurations
| Configuration | Front | Rear | Offset | Backspacing | Tire | Bolt pattern | Center bore | Thread |
|---|---|---|---|---|---|---|---|---|
| 2.0T · 2.0L, I4, Petrol | 8x18 | 9x18 | ET42 / ET30 | 5.65 in | 235/50R18 | 5x120 | 66.9 mm | M14 x 1.5 |
| 2.0T · 2.0L, I4, Petrol | 8.5x19 | — | ET45 | 6.02 in | 245/40R19 | 5x120 | 66.9 mm | M14 x 1.5 |
| 2.0T · 2.0L, I4, Petrol | 8.5x20 | — | ET41 | 5.86 in | 255/35R20 | 5x120 | 66.9 mm | M14 x 1.5 |
| 2.4i · 2.4L, I4, Petrol | 7x17 | — | ET42 | 5.15 in | 245/50R17 | 5x120 | 66.9 mm | M14 x 1.5 |
| 2.4i · 2.4L, I4, Petrol | 8x18 | 9x18 | ET42 / ET30 | 5.65 in | 235/50R18 | 5x120 | 66.9 mm | M14 x 1.5 |
| 2.4i · 2.4L, I4, Petrol | 8x18 | 9x18 | ET42 / ET30 | 5.65 in | 245/45R18 | 5x120 | 66.9 mm | M14 x 1.5 |
| 2.4i · 2.4L, I4, Petrol | 8.5x19 | — | ET40 | 5.82 in | 245/40R19 | 5x120 | 66.9 mm | M14 x 1.5 |
| 1.6T · I4, Petrol | 7x17 | — | ET42 | 5.15 in | 225/55R17 | 5x115 | 70.3 mm | M14 x 1.5 |
| 2.0T · I4, Petrol | 8x18 | 9x18 | ET42 / ET30 | 5.65 in | 245/45R18 | 5x115 | 70.3 mm | M14 x 1.5 |
| 2.0i · I4, Petrol | 7x17 | — | ET42 | 5.15 in | 225/55R17 | 5x115 | 70.3 mm | M14 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.
Wheels and hardware for this vehicle
More on AmazonLug 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
More specs for the 2015 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.