Smooth out every mile with the Rancho RS5000X Suspension Shock Absorber (MPN RS55397), a rear-position damper that drops in as a direct-fit replacement for the 2003-2023 Toyota 4Runner and 2007-2014 Toyota FJ Cruiser. Built around Rancho's exclusive Cross Tuned technology, it pairs a rebound valving system with an advanced compression phase to improve overall handling and performance on and off road.
A polyurethane rebound bumper and rubber bushings help absorb ride harshness, while a low-friction, self-lubricating seal retains gas and oil for quicker rebound and smoother compression. Backed by Rancho's Limited Lifetime Warranty.
What vehicles does the Rancho RS55397 shock absorber fit?
It's a direct-fit rear shock for the 2003-2023 Toyota 4Runner and 2007-2014 Toyota FJ Cruiser. See the Buyer's Guide tab to confirm your exact vehicle.
Is this a front or rear shock absorber?
This is a rear-position shock absorber. Check the Buyer's Guide tab to verify placement for your application.
What is Cross Tuned technology?
It's Rancho's rebound valving system paired with an advanced compression phase, designed to improve overall handling and performance on and off road.
How is this Toyota 4Runner shock absorber built to last?
It uses a 16mm nitro-carburized piston rod, double-welded loops at stress areas, a 35mm sintered iron piston, and a polyvinyl protective boot for durability.
When should I replace this shock absorber?
Signs it may need replacing include excessive bouncing, harsh ride, or fluid leakage. Diagnose the cause and replace shocks in pairs for balanced ride control.
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.
