KYB Suspension Strut and Coil Spring Assembly P/N:SR4545
Bring back factory ride height and controlled handling with the KYB Strut-Plus Suspension Strut and Coil Spring Assembly SR4453, a complete front-left corner unit that pairs the strut, mount, and spring in one pre-assembled package. It installs as a direct-fit replacement for the 2010-2015 Lexus RX350, 2010-2015 Lexus RX450H, and 2010-2013 Toyota Highlander — see the Buyer's Guide tab for engine-level fitment.
A strut assembly supports vehicle weight, sets ride height, acts as the steering pivot, and helps control stability. As an original-equipment supplier, KYB engineers the Strut-Plus to help restore your vehicle's handling and control.
Winner of Best Overall Import Aftermarket Product and a #1 recommended OE replacement choice for Asian vehicles.
What position does this assembly fit?
This is the front-left corner unit. It uses a side-specific design, so order the correct side; for balanced handling, many technicians replace struts in pairs across the axle.
What's included in the assembly?
It's a complete corner unit: a KYB Excel-G strut, the mount, and an application-engineered high carbon steel coil spring, all pre-assembled for installation.
Which vehicles does the SR4453 fit?
It's a direct-fit replacement for the 2010-2015 Lexus RX350, 2010-2015 Lexus RX450H, and 2010-2013 Toyota Highlander. See the Buyer's Guide tab for engine-level details.
What does a strut assembly do?
It supports vehicle weight, sets ride height, acts as the steering pivot, and helps control stability, working with the spring to manage suspension movement.
What are signs this strut assembly may need replacing?
Excessive bouncing, uneven ride height, nose-diving under braking, poor handling, or fluid leaking from the strut may indicate wear. Diagnose the cause before replacing.
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.