2021 Audi S8 Wheel Interchange

OEM wheel and tire fitment specs for the 2021 Audi S8, including bolt pattern (PCD), center bore diameter, thread size, rim diameter, rim width, wheel offset, and backspacing.

Recorded OEM specifications for the 2021 Audi S8, donor years with overlapping ranges, and a calculator to compare a selected wheel. Range overlap is not a guaranteed fit.

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2021 Audi S8 Fitment Specs

Baseline mounting dimensions used for interchange decisions.

Bolt Pattern5x112
Center Bore66.5 mm
Lug ThreadM14 x 1.5 View M14 x 1.5 options on Amazon
OEM Wheel Sizes19" – 21"
OEM Widths8" – 9"
OEM Offset Range32 mm – 40 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: 20 × 9″ · ET +37

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 2021 Audi S8. Overlap is not a guarantee that a specific wheel will install. Selected-wheel comparison is in the calculator below.

Evaluated 99 donor years. Listed 24 eligible overlaps (not all evaluated years are compatible). Showing all listed.

2020, 2022 Audi S8

OEM specs overlapOEM ranges overlap – confirm the specific wheel

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

  • 2020
  • 2022
  • Bolt pattern5x112 · Same recorded PCD
  • Center bore66.5 mm · same recorded hub figure
  • Wheel geometryOEM width/offset ranges overlap (not a specific wheel)

Approximate position vs the mid OEM package: outer change -2.35 mm, inner change -10.35 mm. This uses aggregated width/offset ranges, not a specific wheel.

2023 Audi S8

Insufficient dataInsufficient or mixed data
  • Bolt pattern5x112 · Same recorded PCD
  • Center bore66.5 mm · same recorded hub figure
  • Wheel geometryNot fully recorded

Wheel width/offset data is incomplete.

2013–2018 Audi S8

Check wheel configurationCenter-bore records disagree

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

  • 2013
  • 2014
  • 2015
  • 2016
  • 2017
  • 2018
  • Bolt pattern5x112 · Same recorded PCD
  • Center bore66.5 mm · same recorded hub figure
  • Wheel geometryOEM width/offset ranges overlap (not a specific wheel)

Center-bore records disagree (donor year-level hub 66.6 mm vs trim range 66.5–66.5 mm). Unqualified overlap is not claimed until the conflict is resolved. Approximate position vs the mid OEM package: outer change 10.35 mm, inner change 2.35 mm. This uses aggregated width/offset ranges, not a specific wheel.

2007–2008, 2021–2022 Audi A4

OEM specs overlapOEM ranges overlap – confirm the specific wheel

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

  • 2007
  • 2008
  • 2021
  • 2022
  • Bolt pattern5x112 · Same recorded PCD
  • Center bore66.5 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 mm, inner change 3 mm. This uses aggregated width/offset ranges, not a specific wheel.

2017–2022 Audi A4 allroad

OEM specs overlapOEM ranges overlap – confirm the specific wheel

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

  • 2017
  • 2018
  • 2019
  • 2020
  • 2021
  • 2022
  • Bolt pattern5x112 · Same recorded PCD
  • Center bore66.5 mm · same recorded hub figure
  • Wheel geometryOEM width/offset ranges overlap (not a specific wheel)

Approximate position vs the mid OEM package: outer change -2.35 mm, inner change -10.35 mm. This uses aggregated width/offset ranges, not a specific wheel.

2018–2022 Audi A5

OEM specs overlapOEM ranges overlap – confirm the specific wheel

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

  • 2018
  • 2019
  • 2020
  • 2021
  • 2022
  • Bolt pattern5x112 · Same recorded PCD
  • Center bore66.5 mm · same recorded hub figure
  • Wheel geometryOEM width/offset ranges overlap (not a specific wheel)

Recorded OEM bolt pattern, center bore, and width/offset ranges overlap. This is not a guarantee that every wheel from the donor year fits this vehicle.

Audi S8 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 2021 Audi S8. 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:

2021 Audi S8

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.
-
5x112
Center Bore
Center Bore
The hole in the center of the wheel that fits over the vehicle’s hub.
-
66.5 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.
-
20"
Rim Width
Rim Width
The distance between the inner edges of the wheel is measured in inches.
-
9.0"
Wheel Offset
Wheel Offset
How far the wheel sits inward or outward relative to the hub mounting surface.
-
37 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 2021 Audi S8

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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2021 Audi S8 Wheel Fitment Guide | wheelinterchange.com

Known OEM Fitment For 2021 Audi S8

The following specifications are known for the 2021 Audi S8. Trim levels and factory wheel packages can differ. If a value on your car does not match, confirm it on your door jamb tire placard and in the owner’s manual, then use the on-page calculator to compare against any potential donor wheel or custom setup.

Bolt pattern (studs x PCD)5x112
Center bore66.5 mm
Thread sizeM14 x 1.5
Rim diameter19 in
Rim width8.0 in
Wheel offset (ET)32 mm
Backspacing5.26 in
Tire size example265/40R20

Note: The wheel and tire data above indicate that multiple OEM configurations may exist. If your S8 has a different factory wheel or tire size, treat the above as reference only and verify your exact specs before purchasing wheels or tires.

How To Use The Wheel Interchange Calculator

  • Installed on (your vehicle): The page should prefill 2021 Audi S8. If not, select it.
  • Wheels from (donor vehicle): Choose the vehicle whose wheels you want to test, or pick a known wheel spec.
  • Custom wheel size: Adjust rim diameter, width, and offset to simulate aftermarket wheels. The tool shows inner clearance and outer poke changes compared to your S8.
  • Custom tire size: Adjust section width and aspect ratio to maintain overall diameter. When you change rim diameter, the calculator updates tire diameter in the comparison.
  • Read the results: Aim to keep overall tire diameter similar to your OEM package, maintain safe inner clearance to suspension and brakes, and avoid excessive fender poke.

Fitment Checklist Before You Buy

  • Bolt pattern: Must be 5x112.
  • Center bore: Your hub is 66.5 mm. Aftermarket wheels with a larger center bore require hub centric rings sized to 66.5 mm outer diameter. Wheels with a smaller bore will not fit.
  • Fasteners: Thread is M14 x 1.5. Verify bolt or nut seat type matches the wheel’s seat design and that length is correct, especially if using spacers.
  • Offset: OEM example is ET 32 on an 8.0 inch rim. Use the calculator to visualize inner clearance to struts and outer position relative to the fender when changing width or offset.
  • Brake clearance: The S8 has large brakes. Spoke profile and barrel shape matter. Always test fit over the front calipers.
  • Tire diameter: Keep overall diameter close to stock for correct speedometer and ABS function. A change within about 3 percent is a common guideline, but always verify with the calculator.
  • Load and speed ratings: Choose wheels and tires that meet or exceed the S8’s OEM ratings.
  • TPMS: Plan to transfer sensors or install compatible new ones. Relearn procedures vary by system.
  • OEM confirmation: Cross check your VIN sticker and owner’s manual. If your factory size differs from the values above, base your comparisons on your specific OEM setup.

Plus Sizing And Common Upgrades

Plus sizing means increasing wheel diameter and using a lower profile tire to keep overall diameter similar. Many performance sedans are upgraded by +1 or +2 sizes. For your S8, use the calculator to model options and verify inner and outer clearances, brake clearance, and tire diameter.

  • Example workflow: If your reference is a 19x8 ET 32 wheel, try a larger diameter with an appropriate lower tire aspect ratio in the calculator until overall tire diameter closely matches your OEM package.
  • Width changes: Increasing wheel width requires offset adjustments to avoid rubbing. The calculator will show how much poke changes and how much inner clearance you lose or gain.
  • Spacers: If you need minor poke for caliper or inner barrel clearance, a hub-centric spacer with properly extended M14 x 1.5 bolts can be used. Recompute effective offset in the calculator.
  • Ride and protection: Lower profile tires reduce sidewall cushion. Consider wheel protection and road conditions when plus sizing.

Installation Tips

  • Test fit each front wheel without a tire first if possible to confirm caliper and barrel clearance.
  • Clean the hub face and the wheel mounting pad. Remove corrosion to ensure proper seating and prevent vibration.
  • If using hub-centric rings, install them fully seated in the wheel bore before mounting.
  • Hand start all fasteners to avoid cross threading. If your car uses wheel bolts instead of nuts, a wheel hanger guide pin helps align the wheel.
  • Tighten in a star pattern. Use a torque wrench and the torque value from your Audi owner’s manual. Do not rely on impact tools for final torque.
  • Re-check torque after 50 to 100 miles of driving.
  • Perform a full lock-to-lock turn test and drive over bumps to confirm no rubbing.

Tools And Helpful Supplies

FAQs

  • Will 5x112 wheels from another Audi fit my 2021 S8?

    Possibly. The bolt pattern matches, but you must also match or adapt the 66.5 mm center bore, verify offset and width with the calculator, ensure brake clearance, and confirm load rating. Do not rely on bolt pattern alone.

  • Do I need hub-centric rings?

    If your new wheels have a center bore larger than 66.5 mm, use rings that reduce the wheel bore to 66.5 mm. If the wheel bore is smaller than 66.5 mm, the wheel will not seat on the hub.

  • What offset range will fit?

    It depends on wheel width and spoke design. Use the calculator to compare against the OEM example of 19x8 ET 32 and check inner clearance to suspension and outer fender poke. Always test fit over the brakes.

  • What is the correct lug or bolt torque?

    The exact torque for the 2021 S8 is not provided here. Use the value in your Audi owner’s manual or service documentation and torque with a calibrated wrench.

  • Can I use spacers on the S8?

    Yes, if needed for clearance or stance. Use quality hub-centric spacers and the correct extended M14 x 1.5 bolts. Recalculate effective offset in the calculator and confirm fender coverage and brake clearance.

  • What tire size should I run on the OEM 19x8 wheel?

    Tire selection depends on target diameter, load rating, and the tire manufacturer’s approved rim width range. Use the calculator to match overall diameter to your OEM package and confirm with tire maker fitment charts.

  • Will my TPMS work with new wheels?

    Yes, if you transfer compatible sensors or install new sensors that match your vehicle’s system. A relearn or initialization may be required. Follow the owner’s manual or service procedure.

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