ICON K53122 S2 Stage 2 Secondary Shock System for 2010-2024 Toyota 4Runner and 2010-2014 FJ Cruiser

The ICON Vehicle Dynamics S2 Secondary Shock System redefines the off-road capability of the 2010-2024 Toyota 4Runner and 2010-2014 Toyota FJ Cruiser by allowing for the installation of a secondary shock to an existing ICON coilover setup. The addition of secondary 2.5 Aluminum Series remote reservoir shocks means rougher terrain and larger off-road obstacles can be overcome with confidence as the damping ability of the vehicle’s suspension is effectively doubled. The included ICON CDC Valve is an externally adjustable valve that restricts oil flow into the reservoir which creates 10 levels of compression damping force ranges. As opposed to overly complicated and expensive long travel kits, the ICON S2 System is an affordable upgrade that drastically increases off-road performance, is easy to install, and has a modular design that allows 4Runner/FJ Cruiser owners to upgrade in steps or all at once. The ICON S2 Secondary Shock System redefines off-road capability by allowing the installation secondary shocks to an ICON coilover setup. Secondary shocks allow rougher terrain to be overcome as the damping ability is effectively doubled. APPLICATION NOTE #35: Remote reservoir mounting brackets may interfere with aftermarket bumper mounts / windshield washer bottles.

• 2.5 Aluminum Series secondary shocks feature one-piece impact extruded aluminum cylinders for excellent corrosion resistance and consistent finish
• Vehicle-specific tuned secondary shocks provide increased damping and oil volume
• CDC Valve technology allows for quick and easy compression damping adjustment
• Mostly bolt-on design makes for straightforward install
• Drastically improves vehicle damping ability off-road
• Shocks are fully rebuildable and revalveable
• Increased vehicle stability on-road
• Utilizes factory lower control arms
• Maintains OE track width

The ICON K53122 S2 Stage 2 Secondary Shock System is designed to increase the off-road performance of 2010-2024 Toyota 4Runner and 2010-2014 Toyota FJ Cruiser models equipped with an ICON coilover setup. By adding secondary ICON 2.5 Aluminum Series remote reservoir shocks, the system effectively doubles the suspension damping capacity, helping the vehicle handle rough terrain, larger obstacles, and demanding trail conditions with greater control and stability. The system maintains the factory lower control arms and original track width for a practical upgrade that does not require a full long-travel conversion.
The included ICON CDC Valve provides 10 levels of externally adjustable compression damping. This allows drivers to fine-tune suspension performance by controlling oil flow into the remote reservoir, making it easier to adapt the vehicle to changing terrain and driving conditions. The vehicle-specific shock tuning increases damping performance and oil volume while the one-piece impact-extruded aluminum shock cylinders provide corrosion resistance, durability, and a consistent finish. The shocks are also fully rebuildable and revalveable for long-term serviceability.
The ICON S2 system features a mostly bolt-on installation and a modular design, allowing the upgrade to be completed in stages or installed as a complete system. It improves off-road damping and on-road stability while retaining factory-style packaging and compatibility with the existing ICON coilover configuration. Before installation, review ICON Application Note #35, as remote reservoir mounting brackets may interfere with certain aftermarket bumper mounts or windshield washer bottles. Professional installation is recommended to ensure proper fitment and suspension setup.

Features:

• 2.5 Aluminum Series secondary shocks use one-piece impact-extruded aluminum cylinders for corrosion resistance and a consistent finish

• Vehicle-specific shock tuning provides increased damping control and oil volume

• ICON CDC Valve offers 10 levels of externally adjustable compression damping

• Mostly bolt-on design supports a straightforward installation

• Effectively doubles suspension damping capacity for improved off-road control

• Fully rebuildable and revalveable shocks support long-term serviceability

• Improves vehicle stability during on-road driving

• Utilizes factory lower control arms

• Maintains original equipment track width

• Fits 2010-2024 Toyota 4Runner and 2010-2014 Toyota FJ Cruiser models with an ICON coilover setup

Compatible With
2010 Toyota 4Runner
2010 Toyota FJ Cruiser
2011 Toyota 4Runner
2011 Toyota FJ Cruiser
2012 Toyota 4Runner
2012 Toyota FJ Cruiser
2013 Toyota 4Runner
2013 Toyota FJ Cruiser
2014 Toyota 4Runner
2014 Toyota FJ Cruiser
2015 Toyota 4Runner
2016 Toyota 4Runner
2017 Toyota 4Runner
2018 Toyota 4Runner
2019 Toyota 4Runner
2020 Toyota 4Runner
2021 Toyota 4Runner
2022 Toyota 4Runner
2023 Toyota 4Runner
2024 Toyota 4Runner