2018 Chevrolet Impala Wheel Offset
ET42 · ET45
Quick specs
- OEM offset
- ET42 · ET45
- Wheel size
- 8x18 · 8.5x20 · 8.5x19
- Backspacing
- 5.65 in · 6.02 in · 5.90 in
- Bolt pattern
- 5×120
- Center bore
- 66.9 mm
- Tire size
- 235/50R18 · 245/40R20 · 245/45R19
OEM configurations
| Configuration | Front | Rear | Offset | Backspacing | Tire | Bolt pattern | Center bore | Thread |
|---|---|---|---|---|---|---|---|---|
| 2.5 · I4, Petrol | 8x18 | 8.5x19 | ET42 | 5.65 in | 235/50R18 / 245/45R19 | 5x120 | 66.9 mm | M14 x 1.5 |
| 2.5 · I4, Petrol | 8.5x20 | 8.5x19 | ET45 / ET42 | 6.02 in | 245/40R20 / 245/45R19 | 5x120 | 66.9 mm | M14 x 1.5 |
| 3.6 · 3.6L, V6, Petrol | 8.5x20 | 8.5x19 | ET45 / ET42 | 6.02 in | 245/40R20 / 245/45R19 | 5x120 | 66.9 mm | M14 x 1.5 |
| 3.6 · 3.6L, V6, Petrol | 8x18 | 8.5x19 | ET42 | 5.65 in | 235/50R18 / 245/45R19 | 5x120 | 66.9 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
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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)
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Set of 20 Veritek 14x1.5mm Gloss Black Spline Drive Tuner Lug Nuts w/Key 1.40 Inch for Aftermarket Custom Wheels
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Wheel locks
More on AmazonMore specs for the 2018 Chevrolet Impala
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.