KYB Suspension Strut P/N:3340199
KYB 551129 front left suspension strut for the 2007-2011 Lexus GS350 and other vehicles controls wheel movement with a high-pressure monotube gas design. The Gas-a-Just monotube is an OE monotube replacement intended to restore the vehicle's original capabilities.
A leaking strut, a bouncy or floating ride, or a clunk over bumps can mean this strut is worn, though a worn strut mount or a tire problem can be behind the same signs.
It fits the 2007-2011 Lexus GS350 and the 2006 Lexus GS300, and each takes one strut at this corner. This listing is one front left strut; the front right is a separate part, and both are normally replaced together.
Fit and size
Build and materials
Interchange: 4852080041 · 4852080084 · 4852080085 · 4852080174 · 4852080184 · 4852080185
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This part cross-references / interchanges with the following part numbers:
Is this one of the KYB front struts for the 2007-2011 Lexus GS350?
Yes. KYB 551129 is a front left strut for the 2007-2011 Lexus GS350 and the 2006 Lexus GS300; the front right side is ordered as a separate part.
Are KYB struts like this one gas-charged?
Yes. A floating piston separates this strut's high-pressure nitrogen gas from the oil.
What kind of piston rod does the KYB 551129 have?
The KYB 551129 has a triple chrome plated piston rod. Its ultra-smooth surface lowers seal wear, and fluid leaking is one cause of shock failure.
Is the 551129 among the KYB shocks and struts meant for towing?
KYB builds the Gas-a-Just monotube line for work and towing vehicles with larger, heavier tires and wheels, and the 551129 is part of it.
Which strut mounts does KYB recommend with gas struts like this one?
Part number SM5738. KYB recommends pairing this strut with new mounts to lower the chance of noise and vibration.
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