Enkei Racing
RPF1
Black
17 × 7″ · ET +45
$306.00
View at Tire Rack ↗2021 Acura ILX Wheel Interchange
OEM wheel and tire fitment specs for the 2021 Acura ILX, including bolt pattern (PCD), center bore diameter, thread size, rim diameter, rim width, wheel offset, and backspacing.
Recorded OEM specifications for the 2021 Acura ILX, donor years with overlapping ranges, and a calculator to compare a selected wheel. Range overlap is not a guaranteed fit.
Save these wheel specs to your Ownery garage
2021 Acura ILX Fitment Specs
Baseline mounting dimensions used for interchange decisions.
Bolt Pattern5x114.3
Center Bore64.1 mm
Lug ThreadM12 x 1.5 View M12 x 1.5 options on Amazon
OEM Wheel Sizes17" – 18"
OEM Widths7" – 8"
OEM Offset Range45 mm – 50 mm
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: 17 × 7″ · ET +50
Showing matching bolt patterns and offsets up to 30 mm lower. Confirm center bore, load rating, and clearance at Tire Rack.
MOTEGI RACING
MR131 Traklite
Bronze
17 × 7″ · ET +45
$304.00
View at Tire Rack ↗
Enkei Performance
EKM3
Gunmetal
17 × 7″ · ET +38
$182.12
View at Tire Rack ↗
Focal
F04
Black
17 × 7.5″ · ET +48
$194.13
View 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 Acura ILX. Overlap is not a guarantee that a specific wheel will install. Selected-wheel comparison is in the calculator below.
Evaluated 77 donor years. Listed 24 eligible overlaps (not all evaluated years are compatible). Showing all listed.
2013–2020, 2022 Acura ILX
OEM specs overlapOEM ranges overlap – confirm the specific wheel
Years grouped because recorded compatibility evidence is equivalent. Each year keeps its own page.
- Bolt pattern5x114.3 · Same recorded PCD
- Center bore64.1 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.
2001–2006, 2014–2016 Acura MDX
OEM specs overlapOEM ranges overlap – confirm the specific wheel
Years grouped because recorded compatibility evidence is equivalent. Each year keeps its own page.
- Bolt pattern5x114.3 · Same recorded PCD
- Center bore64.1 mm · same recorded hub figure
- Wheel geometryOEM width/offset ranges overlap (not a specific wheel)
Approximate position vs the mid OEM package: outer change -3.85 mm, inner change -8.85 mm. This uses aggregated width/offset ranges, not a specific wheel.
2007–2012 Acura RDX
OEM specs overlapOEM ranges overlap – confirm the specific wheel
Years grouped because recorded compatibility evidence is equivalent. Each year keeps its own page.
- Bolt pattern5x114.3 · Same recorded PCD
- Center bore64.1 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.
Acura ILX 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 Acura ILX. 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 Acura ILX
Compare Rims
Specification
Wheels from
Installed on
Result (Click it)
Bolt Pattern
The total number of bolt holes and the diameter of the circle they form.
-
5x114.3
Center Bore
The hole in the center of the wheel that fits over the vehicle’s hub.
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64.1 mm
Thread Size
The size and spacing of the threads on the bolts or nuts that hold the wheel in place.
-
M12 x 1.5
Rim Diameter
The wheel diameter in inches that determines which tire sizes will fit.
-
17"
Rim Width
The distance between the inner edges of the wheel is measured in inches.
-
7.0"
Wheel Offset
How far the wheel sits inward or outward relative to the hub mounting surface.
-
50 mm
Backspacing
Shows how much space the wheel takes up toward the inside of the vehicle.
-
-
Wheel Fasteners
The type of hardware used to secure the wheel to the vehicle.
-
-
Wheel Fitment Parts for the 2021 Acura ILX
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
M12 x 1.5
White Knight Chrome M12x1.50 Bulge Acorn Lug Nut, 20 Count
M12 x 1.5 · Thread match only; seat style is not verified
View on Amazon →
White Knight 3807BK-20AM Black Chrome M12x1.50 Spline Lug Nut, 20 items
M12 x 1.5 · Thread match only; seat style is not verified
View on Amazon →
White Knight 3807XL-25AM Chrome M12x1.50 Lug Nuts
M12 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.
Goal
You need safe, compatible wheels and tires for a 2021 Acura ILX. The objective is avoiding rubbing, hub or stud mismatch, and speedometer or brake issues. I will guide you through confirming fitment and using the on-page wheel/tire calculator for validation.
Prerequisites
Start with these known OEM values for the 2021 Acura ILX. Do not assume other specs without confirmation.
| Parameter | OEM value |
|---|---|
| Bolt pattern | 5x114.3 |
| Center bore | 64.1 mm |
| Thread size | M12 x 1.5 |
| Rim diameter | 17 in |
| Rim width | 7.0 in |
| Offset (ET) | 50 mm |
| Backspacing | 5.47 in |
| Tire size (section/aspect) | 215 / 45 R17 |
Assumption: these values may apply across trims, but they can vary. Use the on-page calculator and OEM sources to confirm for your trim.
Step by step
1) Verify fastener and hub details
Confirm the stud pattern is 5x114.3 and thread is M12 x 1.5. Check the lug seat shape and torque spec in the owner’s manual or dealer parts department. Those items affect lug nut selection and safe clamping.
If a wheel’s center bore is larger than 64.1 mm, plan to use hub-centric rings. If a wheel’s center bore is smaller than 64.1 mm, do not mount it. Use precise calipers to measure the hub bore if needed.
Recommended tools: torque wrench, hub-centric rings sized to 64.1 mm, and correct-seat lug nuts. Example search links:
2) Check rim size and offset compatibility
OEM wheels are 17x7.0 with ET 50 and 5.47 in backspacing. Use the relationship backspacing = half rim width + offset (inches) to validate numbers. For this car: half width 3.50 in plus 50 mm (1.9685 in) equals 5.4685 in, which matches OEM backspacing.
When considering a different width or offset, anticipate trade-offs. Lower offset (more negative) pushes the wheel outward and risks rubbing on fenders. Higher offset pulls the wheel inward and risks interference with brakes or suspension.
3) Validate tire overall diameter
OEM tire 215/45R17 yields an overall diameter of about 625.3 mm, or 24.61 inches. I calculated this from rim diameter and tire section/aspect. Use the on-page calculator to see diameter changes when you change rim or tire sizes. Keep diameter change within a small percent to avoid speedometer and ABS issues; the calculator shows percent difference for validation.
4) Use the on-page wheel/tire calculator
Open the calculator and compare “Wheels from (donor vehicle)” to “Installed on (your vehicle)”. Adjust custom wheel size (diameter, width, offset) and custom tire size (section width, aspect). The calculator updates tire diameter whenever you change rim diameter. Use that feedback to check absolute and percent clearance changes.
5) Physical test fit
Do a careful test fit before final installation. Inspect clearance to calipers, rotor, suspension components, and inner fender liners at full lock and during suspension compression. Perform a slow test drive and re-torque lug nuts after 50 to 100 miles for validation.
Validation
Validate these four checkpoints before final acceptance: bolt pattern and thread compatibility, center bore fit (or ring usage), offset/backspacing clearance, and tire overall diameter percent change. Use the on-page calculator to quantify diameter and offset differences. Confirm lug seat type and torque specs with OEM documentation. That combination provides the validation you need for a reliable fit.
Troubleshooting
Rubbing at fender lip or inner liner
Problem: wheel/tire contacts the fender when turning or compressing suspension. Likely cause: insufficient offset or too wide a tire. Remedy: choose a wheel with greater positive offset, reduce rim width, or fit narrower tire. Minor rubbing may be relieved by fender rolling, but check for structural risk first.
Brake caliper interference
Problem: inner wheel spokes hit caliper. Likely cause: offset too high negative or wrong wheel inner barrel shape. Remedy: select a wheel with more positive offset or a different spoke clearance design. Confirm with a test fit.
Vibration or wobble after mounting
Problem: vibration at road speeds. Likely cause: wheel not hub-centric, bent wheel, or incorrect lug seat. Remedy: use hub-centric rings for larger bores, check wheel runout and balance, and verify correct lug nuts and seat style.
Loose or stripped threads
Problem: lug nuts not seating or thread damage. Likely cause: wrong thread pitch or damaged studs. Remedy: stop installation. Confirm M12 x 1.5 thread size, replace damaged hardware, and consult a technician for repairs.
Unknown or missing OEM details
If a value you need is not listed for your trim, do not guess. Use the on-page calculator for sensitivity checks and confirm exact specs with the owner’s manual, dealer, or OEM parts database. That validation avoids unsafe assumptions.
Wrap up
Follow the sequence: confirm fasteners and hub bore, check offset and backspacing with the calculator, test fit, and validate with a short road test. Each step reduces the chance of rubbing or unsafe fitment. If you hit an unknown value, treat it as a constraint and confirm with OEM sources before proceeding. With these steps you should reach a clear, safe wheel and tire solution for your 2021 Acura ILX.
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.
