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The short version
- First era GS300 wheel bearing work is serviceable up front: the 510017 ball with seal 1941, shared with the SC coupes.
- That era’s rear is the pressed 511028, which the IS300 borrowed.
- The 2006 onward cars flip to bolt-on hubs: handed fronts, 513284 left and 513285 right, over the 512337 rear.
- One model, two completely different workshop eras.
The GS spans the entire shift in how Lexus built wheel ends. The 1998 car asks for grease and patience; the 2006 car asks which side of the car the noise is on.
Era one: grease and seals
The front GS300 wheel bearing is the 510017 with seal 1941, serving the GS400, GS430 and the SC300 and SC400 coupes alike.
The rear is the pressed 511028, the same bearing the IS300 runs.
GS300 wheel bearing part numbers
| Years | Detail | Number |
|---|---|---|
| 2006 to 2011 | Front left, RWD | 513284 check price |
| 2006 to 2011 | Front right, RWD | 513285 check price |
| 2006 to 2011 | Rear hub, all engines | 512337 check price |
| 1998 to 2005 | Front, serviceable, with seal 1941 | 510017 check price |
| 1998 to 2005 | Rear, press-in | 511028 check price |
Every model year this chart resolves: 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 and 2011.
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.
Era two: pick a side
Like the IS that shares them, the later GS runs different front hubs left and right for the ABS encoder.
The wrong side bolts up and then corrupts the wheel speed signal. Order by the corner that hums.
The sedan sibling’s fuller handed-fronts story is on the IS page, and handedness in general on the left versus right page.
The coupes in the family photo
The SC300 and SC400 grand tourers share the first era’s parts completely, which triples the listings for what looks like rare hardware. The make overview is on the Lexus page.
Diagnosing a GS300 wheel bearing
- Name the era, 2005 or earlier against 2006 onward.
- On an early car, check the front grease before condemning.
- On a late car, name the side before ordering a front.
- Weave at speed and place the hum.
- Scan ABS codes on the later cars.
The routine is on the checking page, and the early-era service on the repacking page.
Common questions
Which GS300 wheel bearing fits my front?
Through 2005, the serviceable 510017 with its seal. From 2006, handed hubs: 513284 left, 513285 right on RWD.
Which rear do I need?
511028 pressed through 2005, the 512337 hub from 2006.
Do GS350 and GS430 share these?
Yes, era for era. Engine badges do not move these numbers.
Do SC coupe parts fit?
The first era’s, completely. Same hardware under sleeker metal.
Do I need a press?
First era rear, yes. First era front services in place. Second era bolts on everywhere.
What about AWD cars?
The 2007 onward GS350 AWD fronts carry their own listings. Match VIN and side.