2018 Chevrolet Impala Wheel Interchange

OEM wheel and tire fitment specs for the 2018 Chevrolet Impala, including bolt pattern (PCD), center bore diameter, thread size, rim diameter, rim width, wheel offset, and backspacing.

Recorded OEM specifications for the 2018 Chevrolet Impala, donor years with overlapping ranges, and a calculator to compare a selected wheel. Range overlap is not a guaranteed fit.

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Save these wheel specs to your Ownery garage

2018 Chevrolet Impala Fitment Specs

Baseline mounting dimensions used for interchange decisions.

Bolt Pattern5x120
Center Bore66.9 mm
Lug ThreadM14 x 1.5 View M14 x 1.5 options on Amazon
OEM Wheel Sizes18" – 20"
OEM Widths8" – 8.5"
OEM Offset Range42 mm – 45 mm

Multiple OEM configurations exist for this vehicle. Fitment can vary by trim, brakes, and factory wheel package – confirm your exact setup before buying.

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.

Explore wheels at Tire Rack

Selected size: 18 × 8″ · ET +42

Showing matching bolt patterns and offsets up to 20 mm lower. Confirm center bore, load rating, and clearance at Tire Rack.

We may earn a commission when you buy through these links. Prices and availability may change.

Donor vehicles with overlapping OEM specs

These are vehicle-year records whose recorded OEM ranges overlap this 2018 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.

2014–2017, 2019–2020 Chevrolet Impala

OEM specs overlapOEM ranges overlap – confirm the specific wheel

Years grouped because recorded compatibility evidence is equivalent. Each year keeps its own page.

  • 2014
  • 2015
  • 2016
  • 2017
  • 2019
  • 2020
  • Bolt pattern5x120 · Same recorded PCD
  • Center bore66.9 mm · same recorded hub figure
  • Wheel geometryOEM width/offset ranges overlap (not a specific wheel)

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.

2020–2022 Chevrolet Corvette

OEM specs overlapOEM ranges overlap – confirm the specific wheel

Years grouped because recorded compatibility evidence is equivalent. Each year keeps its own page.

  • 2020
  • 2021
  • 2022
  • Bolt pattern5x120 · Same recorded PCD
  • Center bore66.9 mm · same recorded hub figure
  • Wheel geometryOEM width/offset ranges overlap (not a specific wheel)

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.

2017 Chevrolet Equinox

Check wheel configurationWheel bore may need hub-centric rings; clearance unverified
  • Bolt pattern5x120 · Same recorded PCD
  • Center bore70.3 mm donor vs hub 66.9 mm
  • Wheel geometryNeeds configuration check

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.

2010–2015, 2021–2022 Chevrolet Camaro

Check wheel configurationInsufficient or mixed data

Years grouped because recorded compatibility evidence is equivalent. Each year keeps its own page.

  • 2010
  • 2011
  • 2012
  • 2013
  • 2014
  • 2015
  • 2021
  • 2022
  • Bolt pattern5x120 · Same recorded PCD
  • Center bore66.9 mm · same recorded hub figure
  • Wheel geometryNeeds configuration check

Donor width/offset sits outside the known OEM envelope for this vehicle.

2010–2015 Chevrolet Equinox

Check wheel configurationInsufficient or mixed data

Years grouped because recorded compatibility evidence is equivalent. Each year keeps its own page.

  • 2010
  • 2011
  • 2012
  • 2013
  • 2014
  • 2015
  • Bolt pattern5x120 · Same recorded PCD
  • Center bore66.9 mm · same recorded hub figure
  • Wheel geometryNeeds configuration check

Donor width/offset sits outside the known OEM envelope for this vehicle.

Chevrolet Impala Years With Compatible Wheels

Only years with evidence-based interchange relationships are listed. Adjacent years are not assumed compatible.

Will Wheels From Another Vehicle Fit?

Compare a donor vehicle or custom wheel against this 2018 Chevrolet Impala. Use Compare in calculator on a donor row above to fill the donor side of this same calculator.

Compare

Compare wheel compatibility between two vehicles

Wheels from (donor vehicle)

Installed on (your vehicle)

Selected Car:

2018 Chevrolet Impala

Compare Rims

Specification
Wheels from
Installed on
Result (Click it)
Bolt Pattern
Bolt Pattern
The total number of bolt holes and the diameter of the circle they form.
-
5x120
Center Bore
Center Bore
The hole in the center of the wheel that fits over the vehicle’s hub.
-
66.9 mm
Thread Size
Thread Size
The size and spacing of the threads on the bolts or nuts that hold the wheel in place.
-
M14 x 1.5
Rim Diameter
Rim Diameter
The wheel diameter in inches that determines which tire sizes will fit.
-
18"
Rim Width
Rim Width
The distance between the inner edges of the wheel is measured in inches.
-
8.0"
Wheel Offset
Wheel Offset
How far the wheel sits inward or outward relative to the hub mounting surface.
-
42 mm
Backspacing
Backspacing
Shows how much space the wheel takes up toward the inside of the vehicle.
-
-
Wheel Fasteners
Wheel Fasteners
The type of hardware used to secure the wheel to the vehicle.
-
-

Wheel Fitment Parts for the 2018 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.

Lug Nuts / Wheel Bolts

M14 x 1.5

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2018 Chevrolet Impala Wheel Fitment Guide

Known OEM Fitment For 2018 Chevrolet Impala

Wheel and tire specifications can vary by trim and option package. The values below are items that have been observed on 2018 Impala models. If your car’s door-jamb placard or OEM documentation differs, follow the OEM information. Use the on-page calculator to compare any potential change in wheel or tire size before you buy.

Bolt pattern5x120
Center bore66.9 mm
Thread sizeM14 x 1.5
Example OEM wheel size20 x 8.5, ET45, backspacing 6.02 in
Example OEM tire size235/50R18

Notes:

  • Different trims may use different factory wheel and tire sizes. It is normal to see an 18 inch tire size on the door placard while some trims have 20 inch OEM wheels.
  • If any of your specs are unknown for your trim, confirm with the door-jamb tire label, the owner’s manual, GM service information, or a dealer lookup by VIN.

How To Use The Wheel Interchange Calculator

The calculator on this page lets you compare a donor wheel and tire setup to your Impala. It also updates tire diameter automatically when you change rim diameter, which makes it easy to see how size changes affect clearance and speedometer error.

  • Step 1: In Wheels from (donor vehicle), enter the specs of the wheels or tires you are considering. If you only know wheel size, fill those fields first.
  • Step 2: In Installed on (your vehicle), select 2018 Chevrolet Impala or enter your current wheel and tire size from the door placard.
  • Step 3: Use Custom wheel size to try different rim diameter, width, and offset. Watch inner and outer clearance changes to strut, suspension, and fender.
  • Step 4: Use Custom tire size to adjust section width and aspect ratio. The tool recalculates overall tire diameter as you change rim diameter.
  • Step 5: Review the comparison for changes in poke, inner clearance, ride height, and speedometer. Aim to maintain safe inner clearance to struts and control arms and avoid excessive outer poke past the fender.

Tip: If your current settings are unknown or vary by trim, start with the known examples listed above, then verify against your door placard and OEM references.

Fitment Checklist Before You Buy

  • Bolt pattern must be 5x120.
  • Center bore on the car is 66.9 mm. If the wheel hub bore is larger, plan on hub-centric rings sized to 66.9 mm. If it is smaller, the wheel will not seat correctly.
  • Thread size is M14 x 1.5. Use lug nuts that match the thread and the wheel’s seat type. Many aftermarket wheels use a 60 degree conical seat, but verify for your wheel model.
  • Width and offset must clear brakes, struts, and fenders. Use the calculator to compare inner clearance and outer poke versus your current setup.
  • Tire load and speed ratings should meet or exceed the values on your door placard.
  • TPMS: Plan to transfer your sensors or install compatible replacements, then perform relearn according to GM procedures.
  • Spacers or adapters are not a substitute for proper offset. If used, they must be hub-centric and may require longer wheel studs. Only use them when necessary and with correct hardware.
  • Wheel and tire overall diameter should remain close to stock to avoid speedometer and ABS issues. Use the calculator to keep diameter change small.

Plus Sizing And Common Upgrades

Many owners explore a plus size move such as 18 to 19 or 20 inch wheels. On the 2018 Impala, factory equipment has been observed with both 18 inch tire sizes and 20 inch wheels on certain trims. If you are considering a change:

  • Keep overall tire diameter close to stock by lowering the aspect ratio when increasing rim diameter. Use the calculator to visualize the change.
  • Control offset changes. A wider wheel with the wrong offset can push the tire into the strut or out past the fender. Compare inner and outer clearance deltas in the calculator.
  • Check brake caliper clearance. Some wheel designs have tighter spoke-to-caliper profiles even if diameter is larger.
  • Expect ride and noise changes with lower profile tires. Inspect roads you drive most and choose accordingly.

Installation Tips

  • Test fit each front and rear wheel on the hub before mounting tires. Check that the wheel seats fully against the rotor hat and spins freely without contacting calipers or suspension.
  • Clean the hub face and center pilot with a wire brush. Remove rust scale so the wheel sits flush.
  • Do not lubricate wheel studs or use anti-seize on threads unless specified by GM. Torque values are calibrated for dry threads. Always follow the torque spec in the owner’s manual or service information.
  • Install lug nuts by hand first to avoid cross-threading. Tighten in a star pattern in two to three stages, then final torque with a calibrated torque wrench.
  • If using hub-centric rings, ensure they are fully seated in the wheel and on the hub. Recheck after the first drive.
  • Re-torque after 50 to 100 miles of driving.

Tools And Helpful Supplies

FAQs

  • What is the bolt pattern on the 2018 Chevrolet Impala?

    5x120.

  • What is the center bore for this car?

    66.9 mm. If your wheel bore is larger, use hub-centric rings to 66.9 mm. A smaller bore will not fit.

  • What lug nuts do I need?

    Thread size is M14 x 1.5. Match the seat type to your wheel design. Many aftermarket wheels use a 60 degree conical seat. Verify before purchase.

  • Will 20 inch wheels fit my 2018 Impala?

    20 inch wheels have been observed on certain 2018 Impala trims, for example 20 x 8.5 ET45. Fitment depends on your trim, brakes, and tire choice. Compare your current setup in the calculator and confirm against your door placard and OEM sources.

  • What is an OEM tire size for this model year?

    235/50R18 has been observed on 2018 Impala models. Always verify the tire size on your door-jamb label for your specific trim.

  • How do I choose the correct offset?

    Start from a known example like ET45 on an 8.5 inch wheel, then use the calculator to see inner and outer clearance changes relative to your current wheels. Maintain safe inner clearance to struts and avoid excessive outer poke.

  • Can I reuse my OEM lug nuts with aftermarket wheels?

    Only if the seat type and thread match the new wheel. Many OEM nuts have a different seat. Check with the wheel manufacturer.

  • Do I need new TPMS sensors?

    You can transfer your existing sensors if compatible. If not, use compatible GM sensors and perform the relearn procedure after installation.

  • What torque should I use on the lug nuts?

    Follow the torque specification in the owner’s manual or GM service information for the 2018 Impala. Do not guess the value.

Methodology and sources

Wheel interchange depends on more than bolt pattern. Where data is available, this site compares recorded OEM values:

  • Bolt pattern / PCD
  • Center bore direction (donor wheel bore must not be smaller than the hub)
  • Wheel diameter, width, and offset against known OEM ranges
  • Lug thread / hardware differences (vehicle-side hardware)

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.

Nick Marchenko

Automotive Expert