2009 Acura TL Wheel Interchange

2009 Acura TL Wheel Fitment Guide

tl;dr

The 2009 Acura TL data on this page shows a 5x120 bolt pattern, 64.1 mm center bore, and M14x1.5 threads. Known OEM wheel is 18x8 ET55 with 6.17 in backspacing. Tire sizing in the data also shows 245/50R17, which suggests multiple OEM packages. Trim and package matter. Verify your exact setup on the door jamb label and with the on-page calculator before buying wheels or tires.

Recommendation

• Confirm your exact trim and OE sizes from the driver door placard and owner manual.
• Use the wheelinterchange.com calculator to load your 2009 TL as Installed on, then compare candidate wheels under Wheels from or Custom wheel size.
• Match the 5x120 bolt pattern and 64.1 mm hub bore. If the donor wheel bore is larger, plan hub-centric rings. If smaller, it will not fit.
• Keep offset changes modest to protect inner clearance and fender poke. Review the calculator’s inner and outer clearance results.
• Keep overall tire diameter close to your OEM reference. The calculator updates tire diameter as you change rim diameter.
• Check brake caliper and knuckle clearance with a physical test fit whenever possible.
• Use correct-seat lug nuts for the wheel, M14x1.5 thread, and torque to OEM spec from your service manual.

Impact

• Diameter and aspect ratio changes affect speedometer, ABS thresholds, and gearing feel. The calculator highlights diameter delta.
• Offset and width shifts change inner clearance and outer poke. That influences fender rub and bearing load. Review the comparison deltas.
• Center bore and hub-centric fit reduce vibration. Rings help when the wheel bore is larger than 64.1 mm.
• Heavier wheels and tires can slow steering response and increase braking distance.

Risks and gotchas

• Spec variance by trim. The mixed 18 in wheel and 17 in tire data indicates multiple OEM packages. Do not assume one size fits all.
• Bolt pattern confusion. 5x120 is listed here. Do not attempt to mount 5x114.3 or other patterns.
• Center bore mismatch. A wheel with a smaller bore than 64.1 mm will not seat. Larger bores require rings to stay hub-centric.
• Lug seat type. Cone vs ball seat must match the wheel. Wrong seats loosen and damage studs.
• Brake and knuckle interference. Lower offsets push outward but can still contact calipers on spoke backs. Test fit.
• AWD considerations. If your TL is AWD-equipped, avoid front-rear tire diameter mismatches.
• TPMS compatibility. Relearn or replace sensors as needed for new wheels.
• Post-install maintenance. Re-torque after the first short drive cycle to catch settling.

Known OEM fitment for 2009 Acura TL

How to use the calculator effectively

• Set Installed on to 2009 Acura TL to establish your baseline.
• Enter a donor vehicle or use Custom wheel size to try new diameter, width, and offset.
• Adjust Custom tire size to keep overall diameter close to your baseline. The tool updates diameter as rim diameter changes.
• Review inner clearance, outer poke, and diameter change. Aim for modest deltas and confirm physically when possible.

Next actions

• Checklist:
  • Confirm door-jamb sizes and trim details.
  • Baseline your OEM wheel and tire in the calculator.
  • Compare candidate wheel specs and tire options until deltas look acceptable.
  • Plan hub-centric rings if wheel bore is bigger than 64.1 mm.
  • Buy correct-seat M14x1.5 lug nuts and a quality torque wrench.
  • Test fit, spin-check for caliper clearance, then install and torque to spec.
  • Re-torque after 50-100 miles and monitor for rubbing under load.
• Helpful tools and hardware:
  • Torque wrench 1/2 inch drive
  • M14x1.5 lug nuts
  • 64.1 hub-centric rings
• If any spec is unclear or varies by trim, confirm with the owner manual, dealer parts catalog, or the door placard before purchasing.