2018 Kia Optima Bolt Pattern
Checking fitment for your vehicle? Below you will find the factory bolt pattern (also known as the lug pattern) for the 2018 Kia Optima, along with offset and center bore data.
| Bolt Pattern (Lug Pattern) | 5x114.3 (5x4.5") |
|---|---|
| Lug Nut / Bolt Size | 12x1.5 |
| Center Bore (CB) | 67.1 mm |
| Offset (ET) | 35-50 |
| Torque Specs | 80 ft-lbs (108 Nm) |
2018 Optima — Year-Specific Fitment Context
The 2018 Kia Optima is in year 12 of 14 using the 5x114.3 pattern (2007–2020). Wheels from any 2007–2020 Kia Optima are cross-compatible with the 2018 model. Across its full production run (2001–2020), the Optima has also used: 4x114.3.
Kia Optima Bolt Pattern by Year
The table below shows how the Optima's wheel specifications have changed over the years. The 2018 model year is highlighted.
| Year | Bolt Pattern | Center Bore | Offset |
|---|---|---|---|
| 2001 | 4x114.3 | 67.1 | 46 |
| 2002 | 4x114.3 | 67.1 | 46 |
| 2003 | 4x114.3 | 67.1 | 46 |
| 2004 | 4x114.3 | 67.1 | 46 |
| 2005 | 4x114.3 | 67.1 | 46 |
| 2006 | 4x114.3 | 67.1 | 46 |
| 2007 | 5x114.3 | 67.1 | 46 |
| 2008 | 5x114.3 | 67.1 | 46 |
| 2009 | 5x114.3 | 67.1 | 46 |
| 2010 | 5x114.3 | 67.1 | 41 |
| 2011 | 5x114.3 | 67.1 | 41 |
| 2012 | 5x114.3 | 67.1 | 41 |
| 2013 | 5x114.3 | 67.1 | 41 |
| 2014 | 5x114.3 | 67.1 | 41 |
| 2015 | 5x114.3 | 67.1 | 41 |
| 2016 | 5x114.3 | 67.1 | 41 |
| 2017 | 5x114.3 | 67.1 | 41 |
| ▸ 2018 | 5x114.3 | 67.1 | 35-50 |
| 2019 | 5x114.3 | 67.1 | 35-50 |
| 2020 | 5x114.3 | 67.1 | 35-50 |
Fitment Notes
The 2018 Kia Optima has a bolt pattern of 5x114.3.
Imperial Conversion: This bolt pattern is commonly referred to as 5x4.5" in imperial units. When searching for aftermarket wheels, you may see them listed as 5x4.5".
This means it is a 5 lug pattern with a circle diameter of 114.3mm. When shopping for aftermarket wheels, ensure the "lug pattern" or "PCD" matches these numbers.
Year-to-Year Fitment Context
In our dataset, Kia Optima appears from 2001 to 2020 (20 model years).
Across model years, this model appears with 2 bolt patterns (4x114.3, 5x114.3).
- Observed bolt-pattern variants for this model: 2
- Observed center-bore variants for this model: 1
- Observed lug-size variants for this model: 2
- Observed total offset span across years: 96.0 mm
5x114.3 Pattern Context
This bolt pattern appears on 2902 vehicles in our current database and is considered very common.
Examples of other vehicles using 5x114.3:
2018 Kia Optima — Frequently Asked Questions
What is the bolt pattern for a 2018 Kia Optima?
The 2018 Kia Optima uses a 5x114.3 bolt pattern (also called lug pattern or PCD). The center bore is 67.1mm and the offset is 35-50mm.
What other years of Kia Optima have the same bolt pattern as the 2018?
The Kia Optima uses the 5x114.3 pattern from 2007 through 2020. Wheels from any of these model years are dimensionally compatible with the 2018, provided the offset and center bore also match.
Do 2018 Kia Optimas use lug bolts or lug nuts?
The 2018 Optima requires 12x1.5 hardware. Check your specific trim to ensure you use the correct conical or spherical seating.
What is the factory wheel offset for a 2018 Kia Optima?
The OEM offset for the 2018 Optima is typically around 35-50mm. Depending on wheel width, a deviation of ±5mm is usually acceptable, but verify suspension clearance.
What is the center bore of a 2018 Kia Optima?
The factory center bore (hub bore) for the 2018 Kia Optima is 67.1mm. If your aftermarket wheels have a larger hub bore, you will need hub-centric rings to prevent vibration.
What lug nut size does the 2018 Kia Optima use?
The 2018 Kia Optima uses 12x1.5 lug nuts. Always verify the thread pitch and seat type (cone, ball, or flat) match your aftermarket wheels.
Fitment Checklist Before You Buy Wheels
- Verify thread pitch before installation; M12x1.25 and M12x1.5 are not interchangeable.
- Confirm bolt pattern carefully. 5x114.3 is often confused with other common 5-lug patterns.
- This fitment uses a wide offset range. Check brake clearance and fender clearance before buying wheels.
- Torque lugs in a star pattern to 80 ft-lbs (108 Nm), then re-check torque after 50-100 km (30-60 miles).
- This model has multiple bolt-pattern records across years. Match wheels to exact year/trim before purchase.
Editorial Fitment Notes
Kia Optima has multiple wheel-fitment records across generations, so matching exact year and trim is important before ordering wheels.
- Observed production years in our database: 2001-2020 (20 model years).
- Observed bolt-pattern variants: 2 (4x114.3, 5x114.3).
- Observed total offset span across years: 96.0 mm.
- Observed center-bore variants: 1 | lug-size variants: 2.
Data Quality & Review
Source note: Compiled from manufacturer fitment references, historical wheel data, and internal normalization rules.
Last reviewed: 2026-05-26 | Reviewed by: Bolt Pattern HQ Editorial Team
If you find a discrepancy for 2018 Kia Optima, please report it via our About page contact so we can verify and update this record.