Home › Vehicles › Kia › Kia Optima › 2007-2010 Kia Optima Wheel Bearing Part Numbers
The short version
- 2008 Kia Optima wheel bearing numbers: front press-in 510034 for 2007-2009, rear with ABS 512265, rear without ABS 512266.
- The non-ABS rear span is disputed, ending in 2008 in one listing and 2009 in another.
- 2010 fronts are not separately documented; match the old part or run the VIN.
- Rear ABS hub 512265 runs the whole 2007-2010 span cleanly.
Four model years, 2007 through 2010, split the rear on ABS and leave 2010’s front an open question. The 2008 Kia Optima wheel bearing rear hub with ABS is 512265, covering the whole span. Without ABS, the listings disagree on where the coverage ends.
Front steady through 2009, rear splits on ABS
The front press-in bearing carries over from the prior generation at 510034, documented through 2009.
The rear ABS hub, 512265, covers 2007-2010. Without ABS, one listing stops at 2008 and another carries the number to 2009.
Optima wheel bearing part numbers
| Years | Detail | Number |
|---|---|---|
| 2007-2010 | Rear hub, 4 wheel ABS | 512265 check price |
| 2007-2009, spans disagree | Rear hub, without ABS | 512266 check price |
| 2007-2009 | Front, press-in bearing | 510034 check price |
Price links lead to Amazon searches for that number. As an Amazon Associate this site earns from qualifying purchases.
Lookups run through the cross reference page.
This page covers the 2007-2010 Kia Optima: 2007, 2008, 2009, 2010. Other years live on the main Optima wheel bearing page.
The rear splits on ABS, and the non-ABS span is disputed between listings, ending in 2008 in one and 2009 in another. Match the old part rather than trusting either end date.
2010 front bearings are not separately documented in the catalogs we hold. Match the number the old part carries, or run the VIN.
Year by year
2007 through 2009 hold the front bearing steady at 510034, carried over from the prior generation. 2010 has no separately documented front number, so match the old part.
The rear needs the ABS answer every year on the 2008 Kia Optima wheel bearing chart. With ABS, 512265 covers 2007 through 2010 cleanly, but without ABS, 512266 applies only through 2008 or 2009 depending on the listing.
Between the earlier Optima and the next redesign
This body follows the 2001-2006 Optima wheel bearing page, and the front bearing number, 510034, actually carries straight over from that generation’s later years.
The next redesign starts the 2011-2015 Optima wheel bearing page, where the front bearing disappears from the catalogs entirely.
Diagnosing an Optima wheel bearing
- Listen for the pattern. A worn wheel bearing hums or growls, and the pitch tracks with road speed, not engine RPM. See wheel bearing noise on turns for what changes in a corner.
- Rule out the tires first. Cupped or unevenly worn tires can mimic a bearing hum. Compare against tire noise versus wheel bearing noise before pulling anything apart.
- Check for play. With the wheel off the ground, grab it at 12 and 6 o’clock and rock it. Looseness at the hub points to the bearing, covered in how to check a wheel bearing.
- Watch the ABS light. A failing rear hub can trip the ABS sensor on the ABS-equipped side. A bad bearing and the ABS light covers the connection.
- Confirm the ABS answer before ordering the rear. Check the dash and the wiring at the hub, since the rear number depends entirely on whether ABS is present.
Common questions
What wheel bearing does a 2008 Kia Optima use?
A 2008 Kia Optima wheel bearing setup is front 510034, rear 512265 with ABS or 512266 without ABS. Both rear listings agree that 2008 is covered.
What wheel bearing does a 2010 Kia Optima use?
A 2010 Optima with ABS uses rear hub 512265. Without ABS, and up front, the catalogs we hold do not extend that far; match the number the old part carries or run the VIN.
What does a 2008 Kia Optima wheel bearing replacement involve?
Confirm ABS first, since it decides between 512265 and 512266 at the rear. The front, 510034, is a press-in bearing and needs a press or knuckle removal rather than a bolt-on swap.
Why do the rear listings disagree on the non-ABS end year?
One catalog file carries 512266 through 2008 and another extends it to 2009. The catalogs we hold do not resolve the difference, so match the old part on a 2009 non-ABS car.
Does the front bearing change between 2007 and 2009?
No. 510034 covers the front for all three years without a change. 2010 is the year that drops out of the documented listing.