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What size are the lug nuts on a 2006 Acura?

The typical lug nut size on most 2006 Acura models is M12 x 1.5 with a 19 mm hex head, using a conical seat. However, exact specifications can vary by model, wheel package, and aftermarket wheels, so it’s important to verify for your specific vehicle.


Common specifications and how to verify


Before listing typical configurations, note that lug nut sizes can differ between trims and wheel setups. The following guidelines reflect what many 2006 Acura vehicles use, but you should confirm for your exact car.



  • Thread size: M12 x 1.5 (metric) is standard on most 5-lug Acura wheels from that era.

  • Nut seat: conical (tapered) seat is standard with factory wheels; aftermarket wheels may use a different seat style.

  • Hex size: most lug nuts require a 19 mm wrench (about 3/4 inch); some wheels use a 21 mm wrench. Confirm by measuring an existing nut or checking the wheel specification.

  • Number of lug nuts: 5 per wheel.

  • Wheel compatibility: wheel and lug nut specs can vary if aftermarket wheels or spacers are installed; verify with the wheel manufacturer or a dealership.


In practice, the exact lug nut size for your car may differ from the generic guidance above. The safest approach is to verify via official documentation or a trusted parts professional using your vehicle identification number (VIN) and the specific wheel package.


How to verify the exact lug nut size for your car


Follow these steps to confirm the correct lug nut size for your 2006 Acura, especially if you have aftermarket wheels or a non-standard trim.



  1. Check the owner’s manual or the official Acura parts catalog for your exact model and trim to confirm the recommended lug nut size and torque.

  2. Inspect an existing lug nut or the wheel hub for size details, noting thread type and seat style.

  3. Measure the hex across flats of a lug nut with a ruler or caliper to determine the correct wrench size (most commonly 19 mm, occasionally 21 mm).

  4. If in doubt, contact a dealership parts department or a qualified tire/wheel shop with your VIN to obtain the precise lug nut size and torque specification.


Verifying the size ensures proper fit and helps prevent damage to studs or wheels during installation or removal.


Notes by model and setup


Different trims, wheel packages, or aftermarket rims can require different lug nuts. Always verify against the official documentation for your exact 2006 Acura model and wheel configuration. If you recently replaced wheels, also consult the wheel manufacturer’s installation guide to confirm nut size and torque requirements.


Summary


For most 2006 Acura models, expect M12 x 1.5 lug nuts with a 19 mm hex head and a conical seat, installed five per wheel. Variations can occur with different trims or aftermarket wheels, including potential use of a 21 mm hex. Always verify via the owner’s manual, dealership, or VIN-specific official documentation, and follow the recommended torque (typically around 80 ft-lbs) when reinstalling.

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Specifications

ConditionNew
Lug Nut ThreadM12X1.5
Lug Nut Hex Size19mm
Lut Nut Length24.5mm
lug_nut_seatBall



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Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.