Recorded OEM specifications for the 2020 Chevrolet Impala, donor years with overlapping ranges, and a calculator to compare a selected wheel. Range overlap is not a guaranteed fit.
Baseline mounting dimensions used for interchange decisions.
Thread-only product links are shopping examples, not verified fits. Seat style is not confirmed here. As an Amazon Associate we earn from qualifying purchases.
These are vehicle-year records whose recorded OEM ranges overlap this 2020 Chevrolet Impala. Overlap is not a guarantee that a specific wheel will install. Selected-wheel comparison is in the calculator below.
Evaluated 29 donor years. Listed 24 eligible overlaps (not all evaluated years are compatible). Showing all listed.
Years grouped because recorded compatibility evidence is equivalent. Each year keeps its own page.
Approximate position vs the mid OEM package: outer change -1.67 mm, inner change -4.68 mm. This uses aggregated width/offset ranges, not a specific wheel.
Years grouped because recorded compatibility evidence is equivalent. Each year keeps its own page.
Approximate position vs the mid OEM package: outer change 3.68 mm, inner change 2.68 mm. This uses aggregated width/offset ranges, not a specific wheel.
Dataset suggestionHub-centric rings ≈ 70.3 → 66.9 mm – not a verified installation requirement.
Hub-centric rings of about 70.3 → 66.9 mm mm may be relevant if the wheel bore is larger than the hub; clearance is not verified. Donor width/offset sits outside the known OEM envelope for this vehicle.
Years grouped because recorded compatibility evidence is equivalent. Each year keeps its own page.
Donor width/offset sits outside the known OEM envelope for this vehicle.
Years grouped because recorded compatibility evidence is equivalent. Each year keeps its own page.
Donor width/offset sits outside the known OEM envelope for this vehicle.
Only years with evidence-based interchange relationships are listed. Adjacent years are not assumed compatible.
Compare a donor vehicle or custom wheel against this 2020 Chevrolet Impala. Use Compare in calculator on a donor row above to fill the donor side of this same calculator.
Compare wheel compatibility between two vehicles
2020 Chevrolet Impala
Example products matched to recorded thread, hub, or spacer dimensions. They are not verified fits. Confirm seat style, thickness, and clearance before ordering.
M14 x 1.5
M14 x 1.5 · Thread match only; seat style is not verified
View on Amazon →
M14 x 1.5 · Thread match only; seat style is not verified
View on Amazon →
M14 x 1.5 · Thread match only; seat style is not verified
View on Amazon →As an Amazon Associate we earn from qualifying purchases. Product availability and pricing may change.
The values below reflect the fitment details provided for this page. If anything is missing or appears to conflict, use the on-page calculator and confirm against OEM sources before purchasing wheels or tires.
| Bolt pattern | 5x120 |
| Center bore | 66.9 mm |
| Thread size | M14 x 1.5 |
| Rim diameter | 20 in |
| Rim width | 8.5 in |
| Wheel offset | ET 45 mm |
| Backspacing | 6.02 in |
| Tire size | 245/45 R19 |
Data note: The listed wheel diameter is 20 inches, while the tire size shows a 19 inch rim (R19). That is inconsistent, which often happens when multiple trims or sources are combined. In addition, an 8.5 inch wheel with ET 45 typically yields backspacing around 6.5 inches, not 6.02. Treat these entries as partial and verify the exact factory size for your specific VIN or trim before ordering.
How to confirm OEM size quickly: check the Tire and Loading label on the driver door jamb for tire size and pressure, inspect the current wheel for size and offset castings on the back, look up your VIN in an OEM parts catalog, or consult a dealer service department. Then use the calculator on this page to compare any potential wheel or tire to your verified baseline.
The calculator lets you compare a donor wheel setup against your Impala so you can predict clearance, stance, and speedometer changes before you buy.
Go through this list for each wheel and tire you consider. This prevents vibration, rubbing, and unsafe hardware engagement.
Because the provided data shows both a 20 inch wheel and a 19 inch tire, confirm your actual baseline first. A common approach is to maintain nearly the same overall tire diameter when changing rim diameter so the speedometer and gearing stay close to stock.
Example only, not OEM-verified: If your confirmed stock tire is 245/45R19, its overall diameter is roughly 27.7 inches. A 20 inch alternative with a similar diameter would be around 245/40R20, which is also approximately 27.7 inches. Use the calculator to verify the exact numbers and check inner and outer clearance on your chosen wheel width and offset. Always inspect fender and liner clearance at full lock and over bumps.
If you change wheel width from the provided 8.5 inches, offset must be chosen to preserve inner clearance to struts and outer clearance to fenders. Increasing width by 0.5 inch adds about 6.35 mm on each side; use the calculator to see how much offset change would be needed to keep the inner edge in the same location.
Work on level ground, chock wheels, and use a floor jack and jack stands at the factory lift points. Test-fit one front and one rear wheel before mounting tires to verify hub bore fit, brake clearance, and lug seat compatibility.
Clean the hub face and the wheel mounting pad so they sit perfectly flat. Do not lubricate lug nut threads unless directed by the service manual. Install lug nuts by hand until snug. Lower the vehicle enough that the tire just contacts the ground and torque the lugs in a star pattern to the OEM specification from your owner’s manual. Re-torque after 50 to 100 miles.
If vibration occurs after installation, check hub-centric ring fit, wheel balance, and that the wheel seats fully on the hub without contacting the caliper or rotor hat.
What is the bolt pattern on the 2020 Impala?
It is 5x120 according to the data provided here. Verify on your vehicle or with OEM documentation before ordering.
What center bore do I need?
The listed center bore is 66.9 mm. Wheels with a larger bore can be used with hub-centric rings sized to 66.9 mm inner. A smaller bore will not fit.
The page shows a 20 inch wheel but a 19 inch tire. Which is correct?
That is an inconsistency in the provided data. Your trim may differ, or the entries may be from different sources. Check your door jamb tire label and your current wheel markings, then set that as the baseline in the calculator.
Will 5x120.65 or 5x4.75 wheels fit my Impala?
No, those are different patterns. Mixing patterns can cause unsafe clamping and vibration. Use only exact 5x120 wheels and confirm center bore and seat type.
What offset should I use?
The provided value is ET 45 mm for an 8.5 inch wheel. If you change wheel width or design, use the calculator to maintain inner clearance and avoid excessive outer poke. Always test-fit.
Do I need hub-centric rings?
If your aftermarket wheels have a larger center bore than 66.9 mm, yes. Use quality rings that match your wheel’s outer bore and the Impala’s 66.9 mm hub.
What is the correct lug nut torque?
This page does not list a torque value. Use the specification in your owner’s manual or OEM service information and tighten in a star pattern.
Can I move to 20 inch wheels?
Possibly, but only if overall tire diameter, brake clearance, and fender clearance check out. Use the calculator to match overall diameter and verify clearance, and confirm hardware compatibility.
Are wheel spacers safe on this car?
Only high-quality hub-centric spacers matched to 66.9 mm hubs and correct hardware, and only when needed to clear brakes or correct offset. Spacers change load paths; consult a professional and re-check torque frequently.
How do I keep ride height and speedometer close to stock when changing sizes?
Match overall tire diameter in the calculator within about 3 percent of your verified stock size. Adjust aspect ratio when changing rim diameter to keep total diameter similar.
Wheel interchange depends on more than bolt pattern. Where data is available, this site compares recorded OEM values:
A normal wheel spacer does not change bolt pattern. Hub rings cannot enlarge a wheel bore that is smaller than the hub. Brake clearance and tire package fitment still require vehicle-specific checks when not confirmed in the dataset.
