2009 Hyundai Genesis Wheel Fitment Guide
Known OEM Fitment For 2009 Hyundai Genesis
The following values are the known fitment data supplied for the 2009 Hyundai Genesis. Confirm the exact wheel and tire specifications for your trim, market, and vehicle identification number before ordering parts.
| Specification |
Known value |
| Bolt pattern |
5x114.3, meaning 5 studs on a 114.3 mm pitch circle diameter |
| Center bore |
66.7 mm |
| Thread size |
M12 x 1.5 |
| Rim diameter |
18 inches |
| Rim width |
8.0 inches |
| Wheel offset |
ET33, or 33 mm positive offset |
| Backspacing |
5.3 inches |
| Tire section width |
225 mm |
| Tire aspect ratio |
55 percent |
| Tire rim diameter record |
R17 |
There is a data inconsistency in the supplied records: the listed rim diameter is 18 inches, while the listed tire rim diameter is R17. A tire marked R17 is designed for a 17-inch wheel and cannot be installed on an 18-inch wheel. Treat these values as unconfirmed until you compare the markings on the vehicle, the tire sidewall, the wheel, the owner's documentation, and an OEM fitment source. Do not order a tire until the wheel diameter is confirmed.
The bolt pattern, center bore, thread size, wheel width, offset, and backspacing must all be considered together. A wheel that matches 5x114.3 may still be unsuitable if its center bore, offset, brake clearance, load rating, or mounting hardware is incorrect.
How To Use The Wheel Interchange Calculator
Use the calculator to compare Wheels from (donor vehicle) with Installed on (your vehicle). Enter the donor wheel information and the known information for your 2009 Hyundai Genesis, then review the dimensional differences rather than relying only on the bolt pattern.
You can adjust the calculator's Custom wheel size fields for rim diameter, rim width, and offset. You can also adjust Custom tire size fields for section width and aspect ratio. This is useful when checking an aftermarket wheel or a proposed tire size against the current setup.
Changing the custom rim diameter updates the tire diameter in the comparison. Use that result as a screening tool, not as proof of clearance. The calculator cannot replace a physical brake-clearance check, a load-rating check, or confirmation from Hyundai and the wheel manufacturer.
Because the supplied records conflict on 17-inch versus 18-inch tire fitment, run separate comparisons for the confirmed wheel diameter after you verify the actual vehicle configuration. Record the donor wheel's center bore, offset, width, bolt pattern, and any required lug-seat specification.
Fitment Checklist Before You Buy
Start by confirming the vehicle's exact trim and the current wheel and tire markings. OEM specifications can vary by configuration, and the information supplied here may be partial.
- Confirm the vehicle identification number, trim, market, and model year using Hyundai documentation or an authorized Hyundai source.
- Verify the 5x114.3 bolt pattern and make sure the donor wheel is drilled for five studs.
- Check that the wheel's center bore is compatible with the vehicle's 66.7 mm hub. A smaller bore will not fit over the hub. A larger bore may require correctly specified hub-centric rings where appropriate.
- Compare the wheel width, ET33 offset reference, and 5.3-inch backspacing with the calculator and the physical vehicle.
- Confirm brake caliper and suspension clearance on the exact wheel design. Identical diameter, width, and offset numbers do not guarantee identical spoke clearance.
- Verify the tire's rim diameter matches the wheel. The supplied R17 tire record must not be paired with the supplied 18-inch wheel record without resolving the discrepancy.
- Check tire load and speed ratings against the OEM requirement and the tire manufacturer's application guidance.
- Confirm lug nut thread size, seat type, thread engagement, and whether the wheel requires special hardware. The supplied thread size is M12 x 1.5, but thread size alone does not identify the correct lug seat.
- Inspect used wheels for cracks, bends, weld repairs, corrosion around the bead, and damaged mounting holes.
Plus Sizing And Common Upgrades
Plus sizing changes the wheel diameter while attempting to keep the overall tire diameter close to the original. It can change steering response, ride comfort, noise, impact protection, speedometer behavior, and clearance. The calculator can show diameter and width comparisons, but it does not establish a safe final combination.
Do not select a replacement tire from the supplied 225/55 record until the correct rim diameter is confirmed. If the original setup is verified as 17 inches, compare proposed 17-inch tires with the 17-inch wheel. If the original setup is verified as 18 inches, use only a tire approved for an 18-inch rim and check its overall diameter against the confirmed OEM specification.
For any upgrade, keep the wheel within the vehicle and wheel manufacturer's load requirements. After installation, check inner strut clearance, outer fender clearance, steering lock clearance, and clearance with the suspension compressed. A professional alignment may be needed if the wheel or tire size changes substantially.
Installation Tips
Install wheels on clean, dry hub and wheel mounting surfaces. Remove rust and debris without removing material from the hub or wheel. Never use loose spacers, mismatched lug nuts, or hardware with the wrong seat profile.
Install the correct M12 x 1.5 lug hardware only after confirming the wheel manufacturer's seat type and required hardware. Start each lug nut by hand to avoid cross-threading. Tighten in a star pattern, then torque the lugs to the vehicle or wheel manufacturer's specified value. The correct torque value is not provided here, so obtain it from the owner's manual, Hyundai service information, or the wheel manufacturer.
After installation, rotate each wheel by hand and check for interference. Lower the vehicle, recheck torque with a calibrated torque wrench, and inspect for contact during steering lock. Recheck lug torque after the first drive and again according to the vehicle or wheel manufacturer's instructions. Stop driving if you feel vibration, rubbing, looseness, or steering changes.
Tools And Helpful Supplies
Useful supplies include a calibrated torque wrench, correctly sized socket, jack and approved jack stands, wheel chocks, a tire pressure gauge, a tread-depth gauge, and a hub or wheel cleaning brush. Use the vehicle's designated lifting points and never work under a vehicle supported only by a jack.
View automotive torque wrench options on Amazon. Confirm the tool's range and accuracy are suitable for the torque specification listed by Hyundai or the wheel manufacturer.
FAQs
What is the bolt pattern for the 2009 Hyundai Genesis?
The supplied fitment data lists a 5x114.3 bolt pattern. Confirm this against the vehicle and OEM documentation before purchasing wheels.
What is the center bore?
The supplied center bore is 66.7 mm. A wheel bore smaller than the vehicle hub will not fit. A larger bore requires careful evaluation and, where appropriate, correctly sized hub-centric rings.
What wheel offset is listed?
The supplied wheel offset is ET33, or 33 mm positive offset, with a listed 8.0-inch rim width and 5.3-inch backspacing. Verify the donor wheel's stamped or certified specifications because offset affects suspension and fender clearance.
Can the listed R17 tire be installed on the listed 18-inch wheel?
No. A tire marked R17 is made for a 17-inch rim, while an 18-inch wheel requires an 18-inch tire. The supplied records conflict, so verify the actual wheel and tire markings before ordering.
What lug thread size is listed?
The supplied thread size is M12 x 1.5. You must also confirm the lug nut seat type, length, thread engagement, and manufacturer requirements before installation.
Does matching 5x114.3 guarantee that a wheel fits?
No. Center bore, offset, width, brake clearance, spoke design, load rating, tire size, and lug hardware also affect fitment. Use the calculator for comparison and perform a physical clearance check.
Can I use the calculator to choose a plus-size tire?
The calculator can compare custom rim diameter, rim width, offset, tire section width, and aspect ratio. It also updates tire diameter when rim diameter changes. Use its results as a comparison aid, then confirm clearance, load rating, speed rating, and OEM approval before installation.
Where can I confirm the unresolved fitment information?
Check the tire sidewall and wheel markings, the owner's manual, Hyundai service information, an authorized Hyundai dealer, and the wheel and tire manufacturers. Confirm the exact trim and market because OEM specifications may vary.
