ICON 2010+ Toyota FJ/4Runner S2 Stage 1 Upgrade System

Manufacturer Part # : K53121

Market Description

• The S2 Secondary Shock System utilizes the factory lower control arms and maintains OE track width while a combination of a billet aluminum shock tower adapters, fabricated shock hoops, and steel skid plates (with incorporated shock mounts) make for a straightforward install with the exceptional build quality you would expect from an ICON Vehicle Dynamics product. The system was designed to eliminate the need for any major alteration of the vehicle’s frame or any other factory suspension components, and the components are 100% removable in case the system is to be installed on another vehicle. The modular design of the S2 kit also allows for standalone installation of the skid plates, which provides the added benefit of protecting the factory lower control arms from potential trail damage that can be experienced while off-road.
• 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. 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.

Product Description - Extended

• 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.
• 2010-UP TOYOTA 4RUNNER/2010-2014 FJ CRUISER S2 STAGE 1 UPGRADE SYSTEM

Features and Benefits

• 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
• 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

Associated Comments

• APPLICATION NOTE #35: Remote reservoir mounting brackets may interfere with aftermarket bumper mounts / windshield washer bottles.
• Recommended Aftermarket Tires: 33" x 11.50" (Larger tires may fit but fender trimming and modifications will be required.)
• APPLICATION NOTE #17: THESE ARE STAND-ALONE KITS AND ARE NOT TO BE USED IN CONJUNCTION WITH ANY OTHER AFTERMARKET KITS
• APPLICATION NOTE #55: Shocks are fully serviceable. Coilover heights indicated are for a stock equipped vehicle
• APPLICATION NOTE #210: Maximum steering angle is reduced for secondary shock compatibility
• Recommended Aftermarket Wheels: ICON Alloys - 17x8.5" w/ 4.75” Backspace / 0mm Offset
• Recommended Aftermarket Wheels: ICON Alloys - 18x9" w/ 5.00” Backspace / 0mm Offset
• Recommended Aftermarket Wheels: ICON Alloys - 20x9" w/ 5.00” Backspace / 0mm Offset
• APPLICATION NOTE #84: ICON S2 System does not work on KDSS equipped vehicles
• APPLICATION NOTE #59: Welding required - lower shock tab and steering stop.
• APPLICATION NOTE #95: Does not work with TRD big brake kit
• TECH NOTE: Compatible with 0-3.5" of front lift over stock
• OEM Wheels & Tires Fitment: Yes
• Ships in multiple boxes

Product Description - Short

• ICON 2010+ Toyota FJ/4Runner S2 Stage 1 Upgrade System
• S2 SHOCK SYSTEM

Product Description - Long

• 10-24 4RUNNER/10-14 FJ S2 STAGE 1 UPGRADE SYSTEM
• 10-UP 4RUNNER/FJ S2 STAGE 1 UPGRADE SYSTEM

Product Description - Invoice

• 10-UP 4RUNNER/FJ S2 STAGE 1 SYSTEM
• K53121

AAIA Part Type Description

Suspension Shock Absorber Kit