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The short version
- An Optima wheel bearing carries the same numbers as the equivalent Hyundai Sonata, across the 2006 to 2020 cars.
- The 2006 model year alone splits three ways, by ABS fitment and by a mid year design change.
- WE60857 is cataloged at the rear for 2006 to 2008, then again at the front for 2009 to 2010. Both are real.
- Front coverage stops at 2016 in every catalog checked, and 2020 has no number at either end.
Kia and Hyundai are the same company, and they shared this platform’s hub across two badges. An Optima wheel bearing search should include the Sonata’s numbers too.
The 2006 model year adds its own complication, with a mid year design change stacked on top of the usual ABS split.
The same part, two badges
512265 covers the 2007 to 2010 rear with four wheel ABS on both cars. 512437 covers roughly 2011 to 2015, and 512553 covers 2016 to 2017.
The Kia Cadenza shares the rear number again from 2017 to 2019.
A listing that names only the Sonata or the Cadenza may still be the right Optima wheel bearing. Read the number, not the badge in the title.
The ABS split on the older cars
An early running change split the 2006 rear into a first design and a second design. The first design is 512190 with ABS and 512191 without it.
The second design, introduced later in the same model year, is 512266. That same 512266 then continues as the plain 2007 to 2008 non ABS number.
None of these are typos. Match the number stamped on the old part rather than guessing from the model year alone.
Optima wheel bearing part numbers
| Years | Detail | Number |
|---|---|---|
| 2020 | Rear, past the catalogs | match old part or VIN |
| 2018 to 2020 | Front, past the catalogs | match old part or VIN |
| 2017 to 2019 | Rear, shared with Cadenza | WE61822 check price |
| 2016 to 2017 | Rear | 512553 check price |
| 2016 | Front, 1.6, 2.0 and 2.4 liter gas engines | WE61822 check price |
| 2016 | Front, hybrid | WE60771 check price |
| 2016 | Front, EX, LX, SX-T Gdi and SXL trims | 513374 check price |
| 2011 to 2015 | Rear | 512437 check price |
| 2011 to 2015 | Front | WE60771 check price |
| 2009 to 2010 | Front, four wheel ABS | WE60857 check price |
| 2007 to 2010 | Rear, four wheel ABS | 512265 check price |
| 2007 to 2008 | Rear, without ABS | 512266 check price |
| 2006 to 2008 | Rear, four wheel ABS, parallel listing | WE60857 check price |
| 2006 | Rear, first design running change, ABS | 512190 check price |
| 2006 | Rear, first design running change, without ABS | 512191 check price |
| 2006 | Rear, second design running change | 512266 check price |
| 2003 to 2009 | Front, press-in ball bearing | 510034 check price |
Every model year this chart resolves: 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 and 2019. A 2020 Optima sits past the catalogs and goes by the old part or the VIN.
The catalogs carry a real front Optima number only through 2016. From 2018 the front sits past the catalogs, and from 2020 so does the rear.
On the 2006 rear, do not collapse the first design and second design numbers into one. They are a genuine running change, not a duplicate entry.
One number, two positions
The catalogs cite WE60857 for the 2006 to 2008 rear with four wheel ABS, and again for the 2009 to 2010 front with the same feature.
Both entries are independently confirmed. A part number moving from one end of the car to the other across a short run is unusual, but it is what the catalog states.
Confirm the position as well as the year before ordering. That is on the front versus rear page.
Why the price differs on the same part
Two listings can carry the same number at very different prices. Sellers price by how many people search for that badge, not by the bearing inside the box.
Neither listing is wrong, and neither part is better. Checking the Sonata and Cadenza listings under the same number widens the field.
Cross referencing is on the cross reference page.
The warranty worth a phone call
Kia’s powertrain warranty is unusually long by industry standards, and its exact terms have shifted across the years covered here.
Wheel bearings sit between powertrain and wear item on most contracts, so the answer depends on the car and the dealer.
It costs one phone call to find out. That is on the warranty page.
Diagnosing an Optima wheel bearing
- Note the year and the ABS fitment before ordering a 2006 to 2010 Optima wheel bearing.
- Check the position as well as the year, since WE60857 covers both ends in different model years.
- Coast in neutral at the noise speed to rule out the engine and the road.
- Weave gently and note which side loads the noise.
- Rock the wheel at twelve and six, knowing a tight wheel proves little.
Those steps are on the checking page and the tire noise page.
Price links lead to Amazon searches for that number. As an Amazon Associate this site earns from qualifying purchases.
Common questions
Is the Optima wheel bearing the same as a Sonata part?
By number, yes, across several generations. Confirm against your own part before buying.
Does ABS matter on the older cars?
Yes. The 2006 to 2010 rear splits by ABS fitment, and 2006 alone has a mid year design change on top of that.
Why does WE60857 appear at both ends?
The catalogs cite it for the rear in 2006 to 2008 and the front in 2009 to 2010. Both entries are confirmed separately.
What about a 2018 to 2020 Optima?
The front sits past the catalogs from 2018, and the rear joins it in 2020. Match the old part or the VIN.
Do I need a press?
No. Every Optima position here is a bolt on hub assembly.