2020 Buick Regal TourX Wheel Offset
Quick specs
- Wheel size
- 8x18 · 8.5x18 · 8.5x19
- Offset
- ET42 · ET49
- Backspacing
- 5.65 in · 6.18 in
- Bolt pattern
- 5×115
- Center bore
- 70.3 mm
- Thread
- M12×1.5
- Tire size
- 235/50R18 · 245/45R18 · 245/40R19
OEM configurations
| Configuration | Front | Rear | Offset | Backspacing | Tire | Bolt pattern | Center bore | Thread |
|---|---|---|---|---|---|---|---|---|
| 2.0T · 2.0L, LTG, I4, Petrol | 8x18 | 9x18 | ET42 / ET30 | 5.65 in | 235/50R18 | 5x115 | 70.3 mm | M12 x 1.5 |
| 2.0T · 2.0L, LTG, I4, Petrol | 8.5x18 | — | ET49 | 6.18 in | 245/45R18 | 5x115 | 70.3 mm | M12 x 1.5 |
| 2.0T · 2.0L, LTG, I4, Petrol | 8.5x19 | — | ET49 | 6.18 in | 245/40R19 | 5x115 | 70.3 mm | M12 x 1.5 |
Wheels and hardware
More on AmazonLug hardware
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Wheel Accessories Parts Set of 20 Chrome 9/16 Spline Lug Nuts Open End Cone Seat Bulge Acorn Small Diameter Locking Lugs 9/16"-18 Thread, 1" Length Wheel Lug Nuts with Key (20, Chrome)
Confirmed vehicle catalog match. Confirm seat type for your wheel.
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McGard 64002 Chrome Cone Seat Style Lug Nuts (M12 x 1.5 Thread Size) - Set of 4
Confirmed vehicle catalog match. Confirm seat type for your wheel.
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DPAccessories Chrome M12x1.5 Lug Nuts - Closed-End Bulge Acorn - Cone Seat - 19mm Hex - D3116-HT-2305/20 (Set of 20)
Confirmed vehicle catalog match. Confirm seat type for your wheel.
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Wheel locks
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MCGARD Chrome Cone Seat M12 x 1.5 Wheel Locks
M12 x 1.5 · lock
Matches M12 x 1.5 — confirm seat style for your wheel
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Gorilla Automotive Wheel Locks With Washer (M12x1.50)
M12 x 1.5 · lock
Matches M12 x 1.5 — confirm seat style for your wheel
Check price on Amazon
Compare your own setup
See how a different width or offset sits versus an OEM configuration for this year.
More specs for the 2020 Buick Regal TourX
Each OEM row is a catalog configuration. Offset ranges are not collapsed when the database has exact setups. Documented aftermarket builds are observed setups only — not universal fit or clearance confirmation.