KYB Suspension Strut and Coil Spring Assembly P/N:SRG4131

Rebuild your truck's front-left corner in one bolt-in step with the KYB strut plus assembly (SRG4131), a Truck-Plus Performance Assembly that combines the strut, mount, and an application-engineered coil spring in a single pre-assembled unit. It installs as a direct-fit front left replacement for the 2003-2009 Toyota 4Runner and 2007-2009 Toyota FJ Cruiser — see the Buyer's Guide tab for engine details. A strut assembly supports vehicle weight, sets ride height, acts as the steering pivot, and helps control stability, so KYB engineers each Truck-Plus for the specific application rather than taking a one-size-fits-all approach.

• Gas-a-Just monotube: built around a KYB Gas-a-Just heavy-duty monotube shock absorber for additional handling and control, with up to 25% more damping performance than standard shock absorbers on your Toyota.
• Application-engineered spring: a KYB spring matched to the strut to maintain proper ride height longer and control weight without sacrificing ride quality.
• Built to work: designed for trucks that work, go off-road, tow a trailer, or haul heavy loads, and engineered to help vehicles with electronic safety systems (ESC, ABS, etc.).
• Side-specific & assembled in USA: left and right carry separate part numbers with side-specific design and components, as the vehicle manufacturer intended.

As a pre-assembled KYB front strut assembly, SRG4131 covers the front left position; the front right uses its own KYB part number, and replacing both front corners as a matched pair helps keep ride and handling balanced.