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ICON Vehicle DynamicsPart # K53123

ICON 2010-2024 Toyota 4Runner/2010-2014 Toyota FJ Cruiser, Stage 3, S2 Secondary Shock Upgrade System

Regular price $3,020.23
Regular price B2B price $3,020.23
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Read the important notes before ordering

Questions about fitment? Live chat or call 866-235-4715

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Optional add-ons

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  • 30-day returnsSee policy
  • Warranty supportWe work with the maker
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Questions about fitment?

Talk to a TRU specialist

We’ll help you verify fitment before you buy.
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Important notes before you order

  1. APPLICATION NOTE #17: These are stand-alone kits and are not to be used in conjunction with any other aftermarket kits
  2. APPLICATION NOTE #35: Remote reservoir mounting brackets may interfere with aftermarket bumper mounts / windshield washer bottles.
  3. APPLICATION NOTE #55: Shocks are fully serviceable. Coilover heights indicated are for a stock equipped vehicle
  4. APPLICATION NOTE #59: Welding required - lower shock tab and steering stop.
  5. APPLICATION NOTE #84: Does not fit KDSS equipped vehicles
  6. APPLICATION NOTE #95: Does not work with TRD big brake kit
  7. APPLICATION NOTE #210: Maximum steering angle is reduced for secondary shock compatibility
  8. TECH NOTE: Compatible with 0-3.5" of front lift over stock

Specifications

BrandICON Vehicle Dynamics
Part numberK53123
UPC / GTIN840103417288
Active or Passive SuspensionPassive
Adjustable CompressionYes
Adjustable DampingYes
Adjustable ReboundYes
Adjustable Ride HeightNo
Bushing(s) IncludedYes
Cylinder ColorGrey
Cylinder Diameter2.5 IN
Cylinder FinishAnodized
Cylinder MaterialAluminum
Damping Adjustment TypeManual
Damping TypeOil
Dust Shield IncludedNo
Gas ChargedYes
Grade TypePerformance
Includes Bump StopNo
Internal Construction TypeSingle Tube
Lower Mount TypeEyelet
Mounting Hardware IncludedYes
Remote ReservoirYes
Shaft Diameter0.875 IN
Shaft MaterialChrome
Shock Mounts IncludedYes
Shocks IncludedYes
Upper Mount TypeEyelet
Valving TypeDigressive
Country of OriginUS
Warranty1 Year-Shock Absorbers; Limited Lifetime-Shock Hoops, Skid Plates

California Proposition 65 warning applies to this product. www.P65Warnings.ca.gov

What's in the box

QtyPartDescription
15610610-14 FJ/10-24 4RUNNER LCA SKID PLATE KIT
15610207-14 FJ/03-24 4RUNNER/05-23 TACOMA S2 SHOCK HOOP KIT
159906PTOYOTA S2 FRONT 2.5 OMEGA RR PAIR

Features

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

Recommended wheels & tires

  • OEM Wheels & Tires Fitment: Yes
  • 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
  • Recommended Aftermarket Tires: 33" x 11.50" (Larger tires may fit but fender trimming and modifications will be required.)

Installation

    Free install support from the Trucks R Us tech team, for you or your shop.

    Overview

    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 Omega bypass 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 ICON Omega Bypass shocks feature two bypass tubes, creating multiple damping zones within the shocks, and externally adjustable bypass valves that restricts oil flow through the tubes to provide 28 settings of compression and rebound adjustment, with no tools required. 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 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.

    Questions

    Will this fit my truck?

    Select your truck at the top of the page and the fit check will confirm it. If your exact trim is not listed, call 866-235-4715 or live chat and a fitment specialist will check it before you order.

    Do you help with installation?

    Yes. Our technical team helps you or your shop with installation and troubleshooting after delivery, on top of the manufacturer’s support.

    What if the part has a problem?

    We work the warranty claim with the manufacturer on your behalf, within the manufacturer’s warranty policy.

    Can I return it?

    Most items can be returned within 30 days. See our return policy for details.

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