KYB Suspension Strut and Coil Spring Assembly P/N:SR4140
Get your ride height and steering feel back with the KYB strut plus SR4401, a complete strut and coil spring assembly that drops in as the front-left corner unit for the 2009-2012 Lexus ES350. A strut assembly carries vehicle weight, sets ride height, acts as the steering pivot, and contributes to vehicle stability — KYB builds this Strut-Plus around an Original Equipment (OE) Restoring strut that's engineered to help restore your car's handling and control.
Engineered to help vehicles with electronic safety systems (ESC, ABS). As an OE supplier, KYB is the #1 recommended OE replacement choice for Asian vehicles, and the Strut-Plus is a Winner of Best Overall Import Aftermarket Product. Fits the 2009-2012 Lexus ES350 — see the Buyer's Guide tab for engine-level details.
Does this KYB complete struts assembly fit my car?
The SR4401 is the front-left corner unit for the 2009-2012 Lexus ES350. Confirm your year in the Buyer's Guide tab before ordering.
Is this KYB quick strut assembly fully assembled?
Yes. It ships pre-assembled with the KYB Excel-G strut, mount and spring as one corner unit, so it installs without separate spring compression.
What position does this KYB front strut assembly cover?
It is the front-left corner unit. KYB uses side-specific part numbers and components, so order the matching side for the correct position.
Should I replace both front struts at once?
Struts wear as a set, so replacing the opposing front strut at the same time helps keep handling and ride height balanced across the axle. This listing covers one front-left unit.
What makes the KYB strut plus assembly different?
It starts with an OE Restoring strut and an application-engineered high-carbon steel coil spring, developed to help restore ride height within OE specifications and original handling capabilities.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.