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S2 Secondary Shocks System - Stage 2 Kit

2010-2024 Toyota 4Runner 4WD RWD
$2,362.35 $2,499.90
$150 Off! Discount in Cart

In Stock

Estimated Delivery in 3-7 business days

Icon

S2 Secondary Shocks System - Stage 2 Kit

2010-2024 Toyota 4Runner 4WD RWD
$2,362.35 $2,499.90
$150 Off! Discount in Cart

In Stock

Estimated Delivery in 3-7 business days

Authorized dealer
Free shipping within the lower 48 United States
Brand new parts with warranty coverage
Free 30-day return and exchange on qualifying orders
Got Questions?
Our experts are here to help!
Part Numbers & Details
Specifications
Part NumberLift/LoweredPositionItemQuantity
K531220-3.5" LiftFrontS2 Secondary Shock System - Stage 21

Overview

The ICON Vehicle Dynamics S2 Secondary Shock System redefines the off-road capability of the 2010-UP Toyota 4Runner and 2010-2014 FJ Cruiser by allowing for the installation of a secondary shock to an existing ICON coilover setup. The addition of a secondary 2.5 Series or Omega Bypass shock 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.

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'rame 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.

Tech Info:

  • OEM Wheels & Tires Fitment: Yes
  • Ships in multiple boxes
  • Recommended Aftermarket Wheels: ICON Alloys | 17x8.5 with 4.75" Backspace / 0mm Offset
  • 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 #59: WELDING REQUIRED - LOWER CONTROL ARM
  • APPLICATION NOTE #84: ICON S2 SYSTEM DOES NOT WORK ON KDSS EQUIPPED VEHICLES
  • APPLICATION NOTE #95: DOES NOT WORK WITH TRD BIG BRAKE KIT
  • APPLICATION NOTE #117: NOT RECOMMENDED WITH REMOTE RESERVOIR COILOVER

Features & Benefits

  • 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
  • CDC Valve technology allows for quick and easy compression damping adjustment
  • Shocks are fully rebuildable and revalveable
  • "Mostly bolt-on" design makes for straightforward install

System Components:

  • 56102 (QTY: 1) | 07-UP FJ/03-UP 4RUNNER/05-UP TACOMA S2 SHOCK HOOP KIT
  • 59706CP (QTY: 1) | TOYOTA S2 SECONDARY 2.5 RR CDCV PAIR
  • 56106 (QTY: 1) | 10-UP FJ/4RUNNER LCA SKID PLATE KIT

Installation Instructions & Docs

Compatibility List
YearMakeModelDrivePositionLift
2024Toyota4RunnerRWD, 4WD0-3.5"
2023Toyota4RunnerRWD, 4WD0-3.5"
2022Toyota4RunnerRWD, 4WD0-3.5"
2021Toyota4RunnerRWD, 4WD0-3.5"
2020Toyota4RunnerRWD, 4WD0-3.5"
2019Toyota4RunnerRWD, 4WD0-3.5"
2018Toyota4RunnerRWD, 4WD0-3.5"
2017Toyota4RunnerRWD, 4WD0-3.5"
2016Toyota4RunnerRWD, 4WD0-3.5"
2015Toyota4RunnerRWD, 4WD0-3.5"
2014Toyota4RunnerRWD, 4WD0-3.5"
2013Toyota4RunnerRWD, 4WD0-3.5"
2012Toyota4RunnerRWD, 4WD0-3.5"
2011Toyota4RunnerRWD, 4WD0-3.5"
2010Toyota4RunnerRWD, 4WD0-3.5"

ICON VEHICLE DYNAMICS LIMITED LIFETIME WARRANTY

If a shock is inspected and it has been determined the shock failed due to neglect, damage caused by improper installation or any other reason besides "normal wear and tear", the owner of said shock is responsible for all service costs. ICON Vehicle Dynamics warrants to the original retail purchaser who owns the vehicle on which the product was originally installed. ICON Vehicle Dynamics does not warrant the product for finish, alterations, modifications and/or installation contrary to ICON Vehicle Dynamics instructions.

ICON Vehicle Dynamics products are not designed, nor are they intended to be installed on vehicles used in race applications, for racing purposes or for similar activities. (A "race" is defined as any contest between two or more vehicles, or a contest of one or more vehicles against the clock, whether or not such contest is for a prize). This warranty does not include coverage for police or taxi vehicles, race vehicles, or vehicles used for government or commercial purposes. Also excluded from this warranty are sales outside of the United States of America and Canada.

ICON Vehicle Dynamics' obligation under this warranty is limited to the repair or replacement, at ICON Vehicle Dynamics' discretion, of the defective product. Any and all costs of removal, installation or re-installation, freight charges and incidental or consequential damages are expressly excluded from this warranty. Items that are subject to wear are not considered defective when worn and are not covered. ICON Vehicle Dynamics components must be installed as a complete kit as shown in our current application guide. Any substitutions or exemptions of required components will immediately void the warranty. This warranty is expressly in lieu of all other warranties expressed or implied. This warranty shall not apply to any product that has been improperly installed, modified or customized subject to accident, negligence, abuse or misuse.


SHOCK ABSORBER WARRANTY

ICON Vehicle Dynamics warrants to the original retail purchaser who owns the vehicle on which the product was originally installed. ICON Vehicle Dynamics does not warrant the product for finish, alterations, modifications and/or installation contrary to ICON Vehicle Dynamics instructions. ICON Vehicle Dynamics products are not designed, nor are they intended to be installed on vehicles used in race applications, for racing purposes or for similar activities. (A "race" is defined as any contest between two or more vehicles, or a contest of one or more vehicles against the clock, whether or not such contest is for a prize).

This warranty does not include coverage for police or taxi vehicles, race vehicles, or vehicles used for government or commercial purposes. Also excluded from this warranty are sales outside of the United States of America and Canada. ICON Vehicle Dynamics' obligation under this warranty is limited to the repair or replacement, at ICON Vehicle Dynamics' discretion, of the defective product. Any and all costs of removal, installation or re-installation, freight charges and incidental or consequential damages are expressly excluded from this warranty. Items that are subject to wear are not considered defective when worn and are not covered.

ICON Vehicle Dynamics components must be installed as a complete kit as shown in our current application guide. Any substitutions or exemptions of required components will immediately void the warranty. This warranty is expressly in lieu of all other warranties expressed or implied. This warranty shall not apply to any product that has been improperly installed, modified or customized subject to accident, negligence, abuse or misuse.

FREE Shipping applies to all products shipped to the lower 48 United States, excluding truck freight items that exceed 100lbs or custom orders.

  • Leaf Springs, Axles, Long Travel Systems, and other products that get shipped on pallets will require specific shipping costs.
  • We do not ship truck-freight items out of the country, only to freight forwarders setup by the buyer.

All other shipping destinations that are available will be calculated at checkout, or you can contact us prior to your purchase.

Shock Surplus ships to the following destinations, and more:

  • All of North America
  • All of Europe
  • United Arab Emirates
  • Australia
  • Most Asian countries

Contact us for a free direct quote to your location.

30-Day Hassle-free Return & Exchange Policy - Stuff Happens!

We sell only brand new, never-installed, authentic, brand-name parts. If your order arrives damaged, is missing hardware, appears used or pre-installed, or is incomplete in any way, we will jump into action to send replacements. We can usually have replacements sent immediately for these rare cases of damaged, incomplete, or incorrect orders.

Shock Surplus allows returns and exchanges inside of a 30-day window starting from time of receipt by the customer. It is our mission to make every transaction smooth, and fix any issues you may encounter.

  • Products must be new, unused, and in uninstalled condition for us to accept a return.
  • We do not accept installed parts, so be sure you have the correct part number(s) before attempting to install them on your vehicle.
  • Returned parts must contain all associated hardware, otherwise that part number will be deducted from your refund.

Exchanges

No restocking fees. Our staff is on hand to make sure that your first purchase is exactly correct for your needs and vehicle, do not hesitate to contact us prior to your purchase through Live Chat or Email.

To start a return or exchange, please fill out THIS FORM (located at the bottom of the page), and be as specific as possible, and someone will be in touch with you in ~1 business day. The typical turnaround for a refund or exchange is 5-10 business days, depending on the complexity of the case. Exchanges are subject to availability of stock; any exchanges proving out of stock will be refunded to the customer.

Return Shipping Costs

We are available to make every transaction flawless for our customers, the Shock Surplus staff is available to guarantee fitment on every part we sell. Shipping costs responsibility are as follows:

  • Misboxed Item - Shock Surplus Responsibility
  • Incorrect Item Sent - Shock Surplus Responsibility
  • Incorrect Item Ordered - Customer Responsibility
  • Order Error (Address, Vehicle Fitment) - Customer Responsibility
  • Changed Mind - Customer Responsibility
  • Damaged in Transit - Shock Surplus Responsibility

Start Your Return Process

Returns Under Customer's Responsibility

  • Below 50lbs - $15 flat rate deducted from the refund. Shock Surplus will provide a shipping label to make this process as easy as possible.
  • Greater than 50lbs - Discounted shipping rates to get the product(s) back to Shock Surplus, that amount will be deducted from the refund. 50lb+ packages are automatically labeled 'Oversize' by our couriers, and automatically incur a $25 charge on top of the shipping fee.

Returns Under Shock Surplus' Responsibility

  • Free, we will provide a return shipping label and ship the replacement parts for free. If a refund is preferred, a full refund will occur.

Refunds

You should expect to receive your refund within 5-7 business days of our warehouse receiving your return. The amount of time it takes for your refund to show up in your account varies by payment method, but typically takes 1-3 business days. You will also receive a message confirming the refund via the marketplace where the purchase happened. We wish we could speed up the process of funds reaching your payment method following a refund, but it is out of our hands.

If you need to return an item, simply login to your account (top right corner of the screen), view the order using the "Complete Orders" link under the My Account menu, and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item. You can also contact contact us for any return requests.

Shipping

We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page.

International Orders

  • Orders are final, no returns
  • Orders shipped to a freight forwarder in the US, are eligible for return if the product has not left the United States.
  • It is the responsibility of the buyer and exporter to ensure correct items received before exporting. Shock Surplus is not responsible for items received once the freight forwarder has shipped the product.
  • The buyer is responsible for import fees and taxes into their country. That is not covered in the shipping fee that Shock Surplus charges.

Product Details

Whether you want to upgrade, add a reservoir, or find something more affordable, contact us with any questions!

Part Numbers & Details

View full product specifications

Close specs
Part Numbers & Details
Specifications
Part NumberLift/LoweredPositionItemQuantity
K531220-3.5" LiftFrontS2 Secondary Shock System - Stage 21

Overview

The ICON Vehicle Dynamics S2 Secondary Shock System redefines the off-road capability of the 2010-UP Toyota 4Runner and 2010-2014 FJ Cruiser by allowing for the installation of a secondary shock to an existing ICON coilover setup. The addition of a secondary 2.5 Series or Omega Bypass shock 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.

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'rame 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.

Tech Info:

  • OEM Wheels & Tires Fitment: Yes
  • Ships in multiple boxes
  • Recommended Aftermarket Wheels: ICON Alloys | 17x8.5 with 4.75" Backspace / 0mm Offset
  • 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 #59: WELDING REQUIRED - LOWER CONTROL ARM
  • APPLICATION NOTE #84: ICON S2 SYSTEM DOES NOT WORK ON KDSS EQUIPPED VEHICLES
  • APPLICATION NOTE #95: DOES NOT WORK WITH TRD BIG BRAKE KIT
  • APPLICATION NOTE #117: NOT RECOMMENDED WITH REMOTE RESERVOIR COILOVER

Features & Benefits

  • 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
  • CDC Valve technology allows for quick and easy compression damping adjustment
  • Shocks are fully rebuildable and revalveable
  • "Mostly bolt-on" design makes for straightforward install

System Components:

  • 56102 (QTY: 1) | 07-UP FJ/03-UP 4RUNNER/05-UP TACOMA S2 SHOCK HOOP KIT
  • 59706CP (QTY: 1) | TOYOTA S2 SECONDARY 2.5 RR CDCV PAIR
  • 56106 (QTY: 1) | 10-UP FJ/4RUNNER LCA SKID PLATE KIT

Installation Instructions & Docs

Compatibility List
YearMakeModelDrivePositionLift
2024Toyota4RunnerRWD, 4WD0-3.5"
2023Toyota4RunnerRWD, 4WD0-3.5"
2022Toyota4RunnerRWD, 4WD0-3.5"
2021Toyota4RunnerRWD, 4WD0-3.5"
2020Toyota4RunnerRWD, 4WD0-3.5"
2019Toyota4RunnerRWD, 4WD0-3.5"
2018Toyota4RunnerRWD, 4WD0-3.5"
2017Toyota4RunnerRWD, 4WD0-3.5"
2016Toyota4RunnerRWD, 4WD0-3.5"
2015Toyota4RunnerRWD, 4WD0-3.5"
2014Toyota4RunnerRWD, 4WD0-3.5"
2013Toyota4RunnerRWD, 4WD0-3.5"
2012Toyota4RunnerRWD, 4WD0-3.5"
2011Toyota4RunnerRWD, 4WD0-3.5"
2010Toyota4RunnerRWD, 4WD0-3.5"
Warranty

View warranty coverage

Close specs

ICON VEHICLE DYNAMICS LIMITED LIFETIME WARRANTY

If a shock is inspected and it has been determined the shock failed due to neglect, damage caused by improper installation or any other reason besides "normal wear and tear", the owner of said shock is responsible for all service costs. ICON Vehicle Dynamics warrants to the original retail purchaser who owns the vehicle on which the product was originally installed. ICON Vehicle Dynamics does not warrant the product for finish, alterations, modifications and/or installation contrary to ICON Vehicle Dynamics instructions.

ICON Vehicle Dynamics products are not designed, nor are they intended to be installed on vehicles used in race applications, for racing purposes or for similar activities. (A "race" is defined as any contest between two or more vehicles, or a contest of one or more vehicles against the clock, whether or not such contest is for a prize). This warranty does not include coverage for police or taxi vehicles, race vehicles, or vehicles used for government or commercial purposes. Also excluded from this warranty are sales outside of the United States of America and Canada.

ICON Vehicle Dynamics' obligation under this warranty is limited to the repair or replacement, at ICON Vehicle Dynamics' discretion, of the defective product. Any and all costs of removal, installation or re-installation, freight charges and incidental or consequential damages are expressly excluded from this warranty. Items that are subject to wear are not considered defective when worn and are not covered. ICON Vehicle Dynamics components must be installed as a complete kit as shown in our current application guide. Any substitutions or exemptions of required components will immediately void the warranty. This warranty is expressly in lieu of all other warranties expressed or implied. This warranty shall not apply to any product that has been improperly installed, modified or customized subject to accident, negligence, abuse or misuse.


SHOCK ABSORBER WARRANTY

ICON Vehicle Dynamics warrants to the original retail purchaser who owns the vehicle on which the product was originally installed. ICON Vehicle Dynamics does not warrant the product for finish, alterations, modifications and/or installation contrary to ICON Vehicle Dynamics instructions. ICON Vehicle Dynamics products are not designed, nor are they intended to be installed on vehicles used in race applications, for racing purposes or for similar activities. (A "race" is defined as any contest between two or more vehicles, or a contest of one or more vehicles against the clock, whether or not such contest is for a prize).

This warranty does not include coverage for police or taxi vehicles, race vehicles, or vehicles used for government or commercial purposes. Also excluded from this warranty are sales outside of the United States of America and Canada. ICON Vehicle Dynamics' obligation under this warranty is limited to the repair or replacement, at ICON Vehicle Dynamics' discretion, of the defective product. Any and all costs of removal, installation or re-installation, freight charges and incidental or consequential damages are expressly excluded from this warranty. Items that are subject to wear are not considered defective when worn and are not covered.

ICON Vehicle Dynamics components must be installed as a complete kit as shown in our current application guide. Any substitutions or exemptions of required components will immediately void the warranty. This warranty is expressly in lieu of all other warranties expressed or implied. This warranty shall not apply to any product that has been improperly installed, modified or customized subject to accident, negligence, abuse or misuse.

Shipping & Returns

Free shipping within the lower 48 United States

Close specs

FREE Shipping applies to all products shipped to the lower 48 United States, excluding truck freight items that exceed 100lbs or custom orders.

  • Leaf Springs, Axles, Long Travel Systems, and other products that get shipped on pallets will require specific shipping costs.
  • We do not ship truck-freight items out of the country, only to freight forwarders setup by the buyer.

All other shipping destinations that are available will be calculated at checkout, or you can contact us prior to your purchase.

Shock Surplus ships to the following destinations, and more:

  • All of North America
  • All of Europe
  • United Arab Emirates
  • Australia
  • Most Asian countries

Contact us for a free direct quote to your location.

30-Day Hassle-free Return & Exchange Policy - Stuff Happens!

We sell only brand new, never-installed, authentic, brand-name parts. If your order arrives damaged, is missing hardware, appears used or pre-installed, or is incomplete in any way, we will jump into action to send replacements. We can usually have replacements sent immediately for these rare cases of damaged, incomplete, or incorrect orders.

Shock Surplus allows returns and exchanges inside of a 30-day window starting from time of receipt by the customer. It is our mission to make every transaction smooth, and fix any issues you may encounter.

  • Products must be new, unused, and in uninstalled condition for us to accept a return.
  • We do not accept installed parts, so be sure you have the correct part number(s) before attempting to install them on your vehicle.
  • Returned parts must contain all associated hardware, otherwise that part number will be deducted from your refund.

Exchanges

No restocking fees. Our staff is on hand to make sure that your first purchase is exactly correct for your needs and vehicle, do not hesitate to contact us prior to your purchase through Live Chat or Email.

To start a return or exchange, please fill out THIS FORM (located at the bottom of the page), and be as specific as possible, and someone will be in touch with you in ~1 business day. The typical turnaround for a refund or exchange is 5-10 business days, depending on the complexity of the case. Exchanges are subject to availability of stock; any exchanges proving out of stock will be refunded to the customer.

Return Shipping Costs

We are available to make every transaction flawless for our customers, the Shock Surplus staff is available to guarantee fitment on every part we sell. Shipping costs responsibility are as follows:

  • Misboxed Item - Shock Surplus Responsibility
  • Incorrect Item Sent - Shock Surplus Responsibility
  • Incorrect Item Ordered - Customer Responsibility
  • Order Error (Address, Vehicle Fitment) - Customer Responsibility
  • Changed Mind - Customer Responsibility
  • Damaged in Transit - Shock Surplus Responsibility

Start Your Return Process

Returns Under Customer's Responsibility

  • Below 50lbs - $15 flat rate deducted from the refund. Shock Surplus will provide a shipping label to make this process as easy as possible.
  • Greater than 50lbs - Discounted shipping rates to get the product(s) back to Shock Surplus, that amount will be deducted from the refund. 50lb+ packages are automatically labeled 'Oversize' by our couriers, and automatically incur a $25 charge on top of the shipping fee.

Returns Under Shock Surplus' Responsibility

  • Free, we will provide a return shipping label and ship the replacement parts for free. If a refund is preferred, a full refund will occur.

Refunds

You should expect to receive your refund within 5-7 business days of our warehouse receiving your return. The amount of time it takes for your refund to show up in your account varies by payment method, but typically takes 1-3 business days. You will also receive a message confirming the refund via the marketplace where the purchase happened. We wish we could speed up the process of funds reaching your payment method following a refund, but it is out of our hands.

If you need to return an item, simply login to your account (top right corner of the screen), view the order using the "Complete Orders" link under the My Account menu, and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item. You can also contact contact us for any return requests.

Shipping

We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page.

International Orders

  • Orders are final, no returns
  • Orders shipped to a freight forwarder in the US, are eligible for return if the product has not left the United States.
  • It is the responsibility of the buyer and exporter to ensure correct items received before exporting. Shock Surplus is not responsible for items received once the freight forwarder has shipped the product.
  • The buyer is responsible for import fees and taxes into their country. That is not covered in the shipping fee that Shock Surplus charges.