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The short version
- 2002-2010 SC430 front: press-in ball bearing 510017 with seal 1941, a press job.
- 2002-2010 SC430 rear: pressed bearing 511028.
- Both numbers are the same pairing the 1990-1997 LS400 and the SC300/SC400 coupes used.
- Parts for the SC430 wheel bearing stay cheap because three decades of Toyota products draw from the same bins.
A convertible built through 2010 running hardware designed for a sedan from 1990 is an unusual pairing, but that is exactly what Lexus did here. The SC430 never got its own bearing design. It simply inherited one that was already old when the car launched.
One pairing, the whole production run
Catalogs still list this pairing for the SC430 through the 2009-2010 model rows, with no mid-cycle change.
Both numbers trace back to the 1990-1997 LS400 and the SC300/SC400 coupes that preceded the SC430.
SC430 wheel bearing part numbers
| Years | Detail | Number |
|---|---|---|
| 2002-2010 SC430 | Front bearing, press-in ball type | 510017 check price |
| 2002-2010 SC430 | Front seal | 1941 check price |
| 2002-2010 SC430 | Rear bearing, pressed | 511028 check price |
Every model year this chart resolves: 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 and 2010.
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 is one of the longest-lived bearing pairings in the catalogs. The same front bearing and seal cover a 1990 LS400 and a 2010 SC430, a twenty-year span across two body styles.
That longevity is good news for cost and availability, but it also means there is nothing SC430-specific to look for. Any listing for 510017 and 1941 applies here.
Where the SC430 wheel bearing numbers come from
The front pairing is a straight carryover from the 1990-1997 LS400 and the SC300/SC400 coupes that shared its platform. Lexus never redesigned the front hub for the SC430, so the part stayed a press job for the car’s entire life.
The rear bearing followed the same pattern. It is the same 511028 pressed unit carried from the older cars, not a part unique to the convertible.
Why a convertible reveals bearing wear early
A hardtop sedan has more sound deadening and more cabin mass to mask a low hum. The SC430’s folding roof and open cabin do neither, so owners often hear a failing SC430 wheel bearing sooner than a GS300 or LS400 owner would.
That earlier warning is worth taking seriously, since the underlying part is identical to what the GS300 uses at the rear. Related coverage across the Lexus lineup shows the same numbers turning up again and again.
Diagnosing an SC430 wheel bearing
- Drive with the top up and windows closed first. This isolates a suspect SC430 wheel bearing hum from wind and road noise the open cabin normally lets in.
- Note if the sound changes with speed, not throttle. A bearing drone tracks road speed, while drivetrain noise tracks engine RPM.
- Jack the corner and rock the tire. Play at 12 and 6 o’clock signals a worn hub rather than a suspension bushing.
- Spin the wheel by hand and feel for roughness. Grinding or notchy rotation points to pitted bearing races.
- Weave gently at low speed to confirm load sensitivity. A bearing usually gets louder when weight shifts onto the bad side.
Common questions
What is the SC430 wheel bearing part number up front?
510017 for the bearing, paired with seal 1941. That pairing covers every SC430 model year, 2002 through 2010.
See how to check a wheel bearing for a walkthrough before ordering parts.
Is the rear SC430 wheel bearing a different design from the front?
Yes. The rear is a pressed bearing, part number 511028, separate from the front press-in ball bearing.
Did the SC430 ever get an updated bearing design?
No. The same front and rear numbers apply across the entire 2002-2010 production run.
Why does the SC430 share bearings with a 1990s LS400?
Lexus carried the front and rear designs forward instead of engineering new ones for the SC430. The platform lineage runs through the SC300/SC400 and back to the LS400.
Is the front SC430 wheel bearing a press-in or bolt-on job?
Press-in. It requires a press to remove the old bearing and seat the new one, not a hub swap.