Caster Arm — Right
OEM Part Number
48660-24020 [Verified]
What It Is
Right-side front lower control arm #2, commonly called the “caster arm”. Fore-aft arm that sets caster angle in the Front Suspension double-wishbone system. Caster angle is not adjustable from factory — approximately +6.85 to +7.00 degrees [Probable].
The rubber bushings in this arm are the most common front suspension failure point on the SC430. See Caster Arm Bushing Degradation.
Fitment
SC430 (UZZ40) 2001–2010, all model years [Verified]. Also fits GS300/GS400/GS430 (S160 platform) [Probable].
Pricing — OEM
~$185 AUD (April 2026) [Verified]
Aftermarket Bushing Alternatives
Rather than replacing the entire arm, the bushings can be pressed out and replaced:
| Brand | Part Number | Type | Price (April 2026) | Notes | Confidence |
|---|---|---|---|---|---|
| FIGS Engineering | G1149 | Polyurethane | ~$180 USD | Adjustable caster arm poly bushings. Well-regarded. Available from FIGS Engineering. | [Reported] |
| SuperPro | SPF4186K | Polyurethane | ~$60–80 USD | Budget poly option | [Reported] |
| Febest | TAB-185 | Rubber | Varies | Possible cross-reference for bushing 48655-24060 | [Reported] |
Note: Bushing replacement requires a hydraulic press. This is not a hammer-and-drift job [Probable].
Where to Buy
- OEM arm: Lexus dealer, LexusPartsNow.com, Amayama
- FIGS bushings: ShopFIGS.com (FIGS Engineering)
- SuperPro: Suspension parts retailers, eBay
- Febest: eBay, Amazon
Related Faults
- Caster Arm Bushing Degradation — most common front suspension failure, primary reason to service this part
Sources
Research data from OEM parts listings and forum threads (April 2026 ingest).