Front Lower Ball Joint — Left
OEM Part Number
43340-39415 [Verified]
What It Is
Left-side front lower ball joint — separate replaceable component connecting [[48069-30300 Front Lower Arm Left|lower control arm #1]] to the steering knuckle in the Front Suspension double-wishbone system. Mirror of 43330-39535 Front Lower Ball Joint Right.
Unlike the upper ball joint (which is integrated into the UCA and cannot be replaced separately — see Upper Control Arm Ball Joint Wear), the lower ball joint is a standalone part [Verified].
Fitment
SC430 (UZZ40) 2001–2010, all model years [Verified]. Also fits GS300/GS400/GS430 (S160 platform) [Probable].
Pricing — OEM
~$117 AUD (April 2026) [Verified]
Aftermarket Alternatives
| Brand | Part Number | Price (April 2026) | Notes | Confidence |
|---|---|---|---|---|
| Moog | K500101 | ~$75 USD/pair | Sold as pair (both sides). See 43330-39535 Front Lower Ball Joint Right. | [Probable] |
Installation Tip
Paint the new ball joint with VHT epoxy before installation to prevent surface rust [Reported].
Where to Buy
- OEM: Lexus dealer, LexusPartsNow.com, Amayama
- Moog: RockAuto, Amazon, eBay
Related Faults
- Caster Arm Bushing Degradation — ball joints often replaced during comprehensive front suspension refresh
- Upper Control Arm Ball Joint Wear — upper ball joint (non-replaceable separately)
Sources
Research data from OEM parts listings and forum threads (April 2026 ingest).