2008 Acura RDX
Direct Fit- Bolt pattern5x114.3 · Match
- Center bore64.1 mm · Match
- Wheel geometryCompatible with OEM envelope
Geometry within known OEM envelope (approx. outer change -0.67 mm, inner change -5.68 mm vs mid OEM).
2009 Acura RDX Wheel Interchange
OEM wheel and tire fitment specs for the 2009 Acura RDX, including bolt pattern (PCD), center bore diameter, thread size, rim diameter, rim width, wheel offset, and backspacing.
2009 Acura RDX Fitment Specs
Baseline mounting dimensions used for interchange decisions.
Bolt Pattern5x114.3
Center Bore64.1 mm
Lug ThreadM12 x 1.5
OEM Wheel Sizes18" – 20"
OEM Widths7.5" – 8"
OEM Offset Range45 mm – 50 mm
Wheels That Interchange With a 2009 Acura RDX
Results are evaluated from bolt pattern, center bore direction, OEM width/offset envelope, and lug hardware – not bolt pattern alone.
Direct Fit
2010 Acura RDX
Direct Fit- Bolt pattern5x114.3 · Match
- Center bore64.1 mm · Match
- Wheel geometryCompatible with OEM envelope
Geometry within known OEM envelope (approx. outer change -0.67 mm, inner change -5.68 mm vs mid OEM).
2007 Acura RDX
Direct Fit- Bolt pattern5x114.3 · Match
- Center bore64.1 mm · Match
- Wheel geometryCompatible with OEM envelope
Geometry within known OEM envelope (approx. outer change -0.67 mm, inner change -5.68 mm vs mid OEM).
2011 Acura RDX
Direct Fit- Bolt pattern5x114.3 · Match
- Center bore64.1 mm · Match
- Wheel geometryCompatible with OEM envelope
Geometry within known OEM envelope (approx. outer change -0.67 mm, inner change -5.68 mm vs mid OEM).
2012 Acura RDX
Direct Fit- Bolt pattern5x114.3 · Match
- Center bore64.1 mm · Match
- Wheel geometryCompatible with OEM envelope
Geometry within known OEM envelope (approx. outer change -0.67 mm, inner change -5.68 mm vs mid OEM).
2013 Acura RDX
Direct Fit- Bolt pattern5x114.3 · Match
- Center bore64.1 mm · Match
- Wheel geometryCompatible with OEM envelope
Geometry within known OEM envelope (approx. outer change -0.67 mm, inner change -5.68 mm vs mid OEM).
2014 Acura RDX
Direct Fit- Bolt pattern5x114.3 · Match
- Center bore64.1 mm · Match
- Wheel geometryCompatible with OEM envelope
Geometry within known OEM envelope (approx. outer change -0.67 mm, inner change -5.68 mm vs mid OEM).
2015 Acura RDX
Direct Fit- Bolt pattern5x114.3 · Match
- Center bore64.1 mm · Match
- Wheel geometryCompatible with OEM envelope
Geometry within known OEM envelope (approx. outer change -0.67 mm, inner change -5.68 mm vs mid OEM).
2016 Acura RDX
Direct Fit- Bolt pattern5x114.3 · Match
- Center bore64.1 mm · Match
- Wheel geometryCompatible with OEM envelope
Geometry within known OEM envelope (approx. outer change -0.67 mm, inner change -5.68 mm vs mid OEM).
2017 Acura RDX
Direct Fit- Bolt pattern5x114.3 · Match
- Center bore64.1 mm · Match
- Wheel geometryCompatible with OEM envelope
Geometry within known OEM envelope (approx. outer change -0.67 mm, inner change -5.68 mm vs mid OEM).
2018 Acura RDX
Direct Fit- Bolt pattern5x114.3 · Match
- Center bore64.1 mm · Match
- Wheel geometryCompatible with OEM envelope
Geometry within known OEM envelope (approx. outer change -0.67 mm, inner change -5.68 mm vs mid OEM).
2019 Acura RDX
Direct Fit- Bolt pattern5x114.3 · Match
- Center bore64.1 mm · Match
- Wheel geometryCompatible with OEM envelope
Geometry within known OEM envelope (approx. outer change 0.67 mm, inner change 5.68 mm vs mid OEM).
2020 Acura RDX
Direct Fit- Bolt pattern5x114.3 · Match
- Center bore64.1 mm · Match
- Wheel geometryCompatible with OEM envelope
Geometry within known OEM envelope (approx. outer change 0.67 mm, inner change 5.68 mm vs mid OEM).
2021 Acura RDX
Direct Fit- Bolt pattern5x114.3 · Match
- Center bore64.1 mm · Match
- Wheel geometryCompatible with OEM envelope
Geometry within known OEM envelope (approx. outer change 0.67 mm, inner change 5.68 mm vs mid OEM).
2022 Acura RDX
Direct Fit- Bolt pattern5x114.3 · Match
- Center bore64.1 mm · Match
- Wheel geometryCompatible with OEM envelope
Geometry within known OEM envelope (approx. outer change 0.67 mm, inner change 5.68 mm vs mid OEM).
2013 Acura ILX
Direct Fit- Bolt pattern5x114.3 · Match
- Center bore64.1 mm · Match
- Wheel geometryCompatible with OEM envelope
Geometry within known OEM envelope (approx. outer change -0.67 mm, inner change -5.68 mm vs mid OEM).
2014 Acura ILX
Direct Fit- Bolt pattern5x114.3 · Match
- Center bore64.1 mm · Match
- Wheel geometryCompatible with OEM envelope
Geometry within known OEM envelope (approx. outer change -0.67 mm, inner change -5.68 mm vs mid OEM).
2015 Acura ILX
Direct Fit- Bolt pattern5x114.3 · Match
- Center bore64.1 mm · Match
- Wheel geometryCompatible with OEM envelope
Geometry within known OEM envelope (approx. outer change -0.67 mm, inner change -5.68 mm vs mid OEM).
2016 Acura ILX
Direct Fit- Bolt pattern5x114.3 · Match
- Center bore64.1 mm · Match
- Wheel geometryCompatible with OEM envelope
Geometry within known OEM envelope (approx. outer change -0.67 mm, inner change -5.68 mm vs mid OEM).
2017 Acura ILX
Direct Fit- Bolt pattern5x114.3 · Match
- Center bore64.1 mm · Match
- Wheel geometryCompatible with OEM envelope
Geometry within known OEM envelope (approx. outer change -0.67 mm, inner change -5.68 mm vs mid OEM).
2018 Acura ILX
Direct Fit- Bolt pattern5x114.3 · Match
- Center bore64.1 mm · Match
- Wheel geometryCompatible with OEM envelope
Geometry within known OEM envelope (approx. outer change -0.67 mm, inner change -5.68 mm vs mid OEM).
2019 Acura ILX
Direct Fit- Bolt pattern5x114.3 · Match
- Center bore64.1 mm · Match
- Wheel geometryCompatible with OEM envelope
Geometry within known OEM envelope (approx. outer change -0.67 mm, inner change -5.68 mm vs mid OEM).
2020 Acura ILX
Direct Fit- Bolt pattern5x114.3 · Match
- Center bore64.1 mm · Match
- Wheel geometryCompatible with OEM envelope
Geometry within known OEM envelope (approx. outer change -0.67 mm, inner change -5.68 mm vs mid OEM).
2021 Acura ILX
Direct Fit- Bolt pattern5x114.3 · Match
- Center bore64.1 mm · Match
- Wheel geometryCompatible with OEM envelope
Geometry within known OEM envelope (approx. outer change -0.67 mm, inner change -5.68 mm vs mid OEM).
Showing 24 of 77 evaluated donors. Same-model years are prioritized.
Acura RDX 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 2009 Acura RDX.
Compare
Compare wheel compatibility between two vehicles
Wheels from (donor vehicle)
Installed on (your vehicle)
Selected Car:
2009 Acura RDX
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.
-
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.
-
18"
Rim Width
The distance between the inner edges of the wheel is measured in inches.
-
7.5"
Wheel Offset
How far the wheel sits inward or outward relative to the hub mounting surface.
-
45 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 2009 Acura RDX
Products below are matched to required fitment dimensions from our parts inventory. 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 · Confirm wheel seat style before ordering
View on Amazon →
White Knight 3807BK-20AM Black Chrome M12x1.50 Spline Lug Nut, 20 items
M12 x 1.5 · Confirm wheel seat style before ordering
View on Amazon →
White Knight 3807XL-25AM Chrome M12x1.50 Lug Nuts
M12 x 1.5 · Confirm wheel seat style before ordering
View on Amazon →Wheel Adapters
5x114.3 · 64.1 mm hub
Directional bolt-pattern adapters. A spacer does not change PCD.
Ezaccessory Adapters 5x4.5 to 5x112
5x114.3 → 5x112 · hub 57.1 mm · 1 inch / 25 mm
View on Amazon →
FLYCLE 1 inch 5x4.5 to 5x4.75 Adapters
5x114.3 → 5x120.7 · hub 73 mm · 1 inch / 25 mm
View on Amazon →
IRONTEK 1
5x114.3 → 5x100 · hub 73.1 mm · 1 inch / 25 mm
View on Amazon →As an Amazon Associate we earn from qualifying purchases. Product availability and pricing may change.
Why These Wheels Fit
Wheel interchange depends on more than bolt pattern. Where data is available, this site compares:
- 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.
tl;dr
For a 2009 Acura RDX, stick close to factory specs and verify changes with the on-page calculator before buying. Core specs: 5x114.3 bolt pattern, 64.1 mm center bore, M12x1.5 threads, 18x7.5 ET45 wheels, 235/55R18 tires. Use hub-centric rings if your wheel bore is larger than 64.1. Keep tire diameter near stock to avoid rub and speedometer error.
| Model year | 2009 Acura RDX |
| Bolt pattern | 5x114.3 |
| Center bore | 64.1 mm |
| Thread size | M12 x 1.5 |
| OEM rim size | 18 x 7.5 in |
| Offset (ET) | 45 mm |
| Backspacing | 5.52 in |
| OEM tire size | 235/55R18 |
Recommendation
Stay within a near-OEM fitment envelope and validate every change. Match bolt pattern exactly. Use wheels with a 64.1 mm bore or larger. Larger bores require hub-centric rings. Keep offset and width changes modest, then check inner and outer clearances with the calculator. Maintain overall tire diameter close to stock when upsizing or downsizing rims.
How to use the wheelinterchange.com calculator efficiently:
- Set Installed on (your vehicle) to 2009 Acura RDX with the OEM size above.
- Pick Wheels from (donor vehicle) or enter Custom wheel size and Custom tire size.
- Adjust rim width and offset to visualize inner strut and outer fender changes.
- Change rim diameter only after pairing a tire size that keeps overall diameter close.
- Review brake clearance, scrub change, and speedometer impact shown by the tool.
Hardware guidance: confirm M12x1.5 thread and the correct lug seat for your wheels. Many aftermarket wheels use conical seats, but confirm with the wheel maker. If using spacers, verify stud length and engagement. When in doubt, compare against OEM parts and Acura service data.
Impact
- Offset and width shift inner barrel clearance to struts and knuckles.
- Outer position changes fender and liner clearance on compression and steer.
- Tire diameter affects speedometer, ABS thresholds, and gearing feel.
- Heavier wheels increase stopping distances and ride harshness.
- Centering quality (hub-centric vs lug-centric) impacts vibration at speed.
- Lug seat mismatch reduces clamping and can loosen over time.
Risks
- Wrong bolt pattern or center bore causes unsafe mounting. The RDX needs 5x114.3 and 64.1 mm hub or rings.
- Too-low offset can cause fender rub and bearing load increase.
- Too-high offset can hit the strut, spring perch, or control arm.
- Oversize tire diameter can rub at full lock or over bumps.
- Undersize tire diameter skews speed readings and reduces brake clearance.
- Incorrect lug seat type or insufficient thread engagement risks fastener failure.
- Skipping hub-centric rings on larger-bore wheels invites highway vibration.
- TPMS considerations: sensors may need transfer or compatible replacements to retain warnings.
Next actions
- Baseline: confirm your current wheel and tire sizes on the door-jamb label and wheel stamps.
- Calculator pass 1: set OEM as Installed on (your vehicle). Enter your candidate wheel width, offset, and tire size under Custom.
- Check clearances: ensure inner and outer movements shown are acceptable for brakes, struts, and fenders.
- Match the basics: 5x114.3 bolt pattern, M12x1.5 threads, 64.1 mm hub or hub-centric rings.
- Seat type: verify cone, ball, or mag-seat requirement with the wheel manufacturer before buying lugs.
- Brake test: if possible, test-fit a single front wheel. Spin by hand and turn lock-to-lock to watch for interference.
- Torque correctly using a calibrated wrench. Re-torque after 50–100 miles. Find a 1/2 inch torque wrench.
- Use rings if the wheel bore is larger than 64.1 mm. Measure the wheel bore and select the right outer size. Browse hub-centric rings 64.1 mm ID.
- Clean and chase threads before install for accurate torque. Search M12x1.5 thread chaser.
- Measure precisely if specs are unclear. A caliper helps verify bores and ring sizes. See digital calipers.
- Final check: road test at varying speeds, then recheck torque and look for witness marks inside the arch.
If any spec on your RDX seems different by trim or market, confirm with the owner’s manual, dealer parts catalog, or the calculator results on wheelinterchange.com before purchase.
