ICON Stage 2 Suspension System with Tubular UCA – 2003-2009 4Runner & 2007-2009 FJ Cruiser | K53052T

Upgrade the suspension performance, wheel travel and handling of your Toyota with the ICON Vehicle Dynamics Stage 2 Suspension System with Tubular Upper Control Arms, part #K53052T.

Designed specifically for the 2003-2009 Toyota 4Runner and 2007-2009 Toyota FJ Cruiser, the ICON Stage 2 system combines Extended Travel 2.5 Series front coilovers, tubular steel upper control arms with ICON Delta Joint, 2-inch rear lift coil springs, and matched 2.0 Aluminum Series rear shocks.

Compared with ICON's Stage 1 system, Stage 2 upgrades the front suspension with Extended Travel coilovers and ICON upper control arms, providing increased front droop travel, improved suspension articulation and better suspension geometry for lifted applications.

The front coilovers provide 0-3.5 inches of adjustable lift, allowing you to dial in your desired ride height while improving wheel travel, damping control and overall vehicle performance both on and off road.

Vehicle Fitment

Toyota 4Runner

• 2003

• 2004

• 2005

• 2006

• 2007

• 2008

• 2009

Toyota FJ Cruiser

• 2007

• 2008

• 2009

IMPORTANT: ICON lists the complete K53052T Stage 2 system specifically for 2003-2009 Toyota 4Runner and 2007-2009 Toyota FJ Cruiser applications.

Although some individual components included in the system fit additional Toyota and Lexus applications, that does not extend the fitment of the complete K53052T suspension system.

Features

• Complete ICON Stage 2 Suspension System

• Fits 2003-2009 Toyota 4Runner

• Fits 2007-2009 Toyota FJ Cruiser

• Adjustable 0-3.5" front lift

• Extended Travel 2.5 Series front coilovers

• Increased front droop and wheel travel

• ICON tubular steel upper control arms

• ICON patented Delta Joint

• 2" rear lift coil springs

• 2.0 Aluminum Series rear internal reservoir shocks

• Vehicle-specific front and rear shock tuning

• Increased wheel travel and ride quality over stock

• Improved on-road and off-road suspension performance

• Improved shock damping and vehicle control

• Helps maintain proper suspension geometry at increased ride heights

• 6061 aircraft-grade aluminum CNC-machined shock components

• Corrosion-resistant CAD-plated front coilover shock bodies

• Heavy-duty 7/8" front shock shafts

• Heavy-duty 5/8" rear shock shafts

• FK Rod End bearings for extended longevity and minimal deflection

• Fully serviceable shocks

• Bolt-on installation

• No cutting or welding required

• ICON Vehicle Dynamics part number K53052T

What Makes Stage 2 Different From Stage 1?

The ICON Stage 2 system builds upon Stage 1 with two important front suspension upgrades:

• Extended Travel 2.5 Series front coilovers

• ICON Tubular Upper Control Arms with Delta Joint

The Extended Travel coilovers provide additional front suspension droop and wheel travel compared with ICON's standard-travel Stage 1 coilovers.

Because these shocks provide increased suspension travel, ICON requires the use of an upgraded upper control arm.

The included ICON tubular UCAs are designed to work with the Extended Travel coilovers, allowing the suspension to take advantage of the additional travel while maintaining proper geometry and articulation.

Adjustable 0-3.5" Front Lift

The ICON 2.5 Series Extended Travel front coilovers provide 0 to 3.5 inches of adjustable front lift on a stock-equipped vehicle.

This allows you to adjust the front ride height based on your desired stance, tire size and vehicle configuration.

Unlike a basic spacer lift, the ICON system replaces the factory front shock and spring assembly with a performance coilover designed to improve:

• Ride quality

• Shock damping

• Suspension travel

• Vehicle control

• Off-road performance

• Front ride height

Front Lift Range: 0-3.5"

ICON notes that published coilover lift heights are based on a stock-equipped vehicle. Added weight from aftermarket bumpers, winches, skid plates and other accessories can affect actual ride height.

Extended Travel 2.5 Series Front Coilovers

Stage 2 upgrades the front suspension with ICON's 58645 Extended Travel 2.5 Series Vehicle-Specific Internal Reservoir Coilovers.

Compared with the standard-travel coilovers included with Stage 1, these shocks provide additional suspension travel and front droop.

Key features include:

• 2.5-inch shock body

• Extended Travel design

• Vehicle-specific shock tuning

• Adjustable 0-3.5" ride height

• Increased front droop travel

• Corrosion-resistant CAD-plated shock body

• Heavy-duty 7/8-inch shock shaft

• 6061 aircraft-grade aluminum CNC-machined components

• FK Rod End bearings

• Fully serviceable construction

The larger shock body and vehicle-specific tuning provide excellent damping and control for both street and off-road driving.

ICON Tubular Upper Control Arms

The K53052T Stage 2 system includes ICON's tubular steel upper control arms, part #58451DJ.

These UCAs are specifically designed to complement the Extended Travel coilovers and provide the additional articulation needed when increasing front suspension travel and ride height.

The tubular control arms provide a strong, durable alternative to ICON's billet aluminum UCA design while retaining the performance benefits of ICON's Delta Joint.

ICON Delta Joint

ICON's patented Delta Joint combines the durability and weather resistance desirable in a daily-driven ball joint with the increased angularity associated with a traditional uniball.

Traditional exposed uniballs provide excellent articulation but can be vulnerable to dirt, water and other environmental contaminants.

The Delta Joint addresses those concerns with features including:

• Heavy-duty high-angle joint design

• Increased angularity compared with a conventional ball joint

• Metal-on-metal construction

• Greaseable design

• Zinc-plated housing for corrosion resistance

• Protective grease seal

• Helps keep dirt, water and contaminants away from internal components

• Designed for quiet operation

• Excellent for daily-driven and off-road vehicles

This makes the Delta Joint particularly well suited for vehicles that need increased suspension articulation while still seeing regular street use.

Tubular UCA vs. Billet UCA Stage 2

ICON offers Stage 2 systems with different upper control arm designs.

K53052T – Tubular UCA

• ICON 58451DJ tubular steel upper control arms

• ICON Delta Joint

• Excellent strength and durability

• More value-oriented Stage 2 configuration

K53052 – Billet UCA

• ICON billet aluminum upper control arms

• ICON Delta Joint

• CNC-machined billet construction

• Premium appearance and construction

Both versions use ICON's Extended Travel 2.5 Series front coilovers and are designed to provide increased front suspension travel.

The primary difference is the construction of the included upper control arms.

2" Rear Lift Coil Springs

The K53052T system includes a pair of ICON 2-inch rear lift coil springs, part #52700.

These springs complement the adjustable front suspension while providing increased rear ride height and improved suspension performance.

The result is a balanced suspension package designed to improve both the stance and performance of the 4Runner or FJ Cruiser.

2.0 Aluminum Series Rear Shocks

ICON pairs the Extended Travel front suspension with 2.0 Aluminum Series Vehicle-Specific Internal Reservoir rear shocks, part #56505.

Rear shock features include:

• 2.0-inch aluminum shock body

• Internal reservoir design

• Vehicle-specific tuning

• Heavy-duty 5/8-inch shock shaft

• Designed for 1-3 inches of rear lift

• Fully serviceable construction

The rear shocks are specifically tuned to complement the front coilovers, helping provide balanced damping and vehicle control from front to rear.

System Components

The ICON K53052T Stage 2 Suspension System includes:

Front Extended Travel Coilovers

• ICON 58645

• Quantity: 1 kit / pair

• 2.5 Series Vehicle-Specific Internal Reservoir Coilovers

• Extended Travel

• Adjustable 0-3.5" front lift

Tubular Upper Control Arms

• ICON 58451DJ

• Quantity: 1 kit

• Tubular steel construction

• ICON Delta Joint

Rear Coil Springs

• ICON 52700

• Quantity: 1 kit / pair

• 2" rear lift coil springs

Rear Shocks

• ICON 56505

• Quantity: 2

• 2.0 Aluminum Series Vehicle-Specific Internal Reservoir shocks

• Designed for 1-3" rear lift applications

Wheel & Tire Recommendations

ICON confirms that OEM wheels and tires are compatible with the K53052T suspension system.

For aftermarket wheel and tire combinations, ICON recommends:

17" Wheels

• 17x8.5"

• 4.75" backspacing

• 0mm offset

18" Wheels

• 18x9"

• 5.00" backspacing

• 0mm offset

20" Wheels

• 20x9"

• 5.00" backspacing

• 0mm offset

Recommended Aftermarket Tire Size:
33" x 11.50"

Larger tires may fit, but ICON notes that fender trimming and other modifications will be required.

Actual tire clearance can vary based on wheel width, offset, backspacing, suspension height and vehicle configuration.

Expedition Coil Option for Heavier Vehicles

ICON identifies an optional 700 lb/in Expedition Coil for heavier-equipped vehicles.

This can be useful for 4Runners and FJ Cruisers carrying substantial additional front-end weight from accessories such as:

• Steel bumpers

• Winches

• Skid plates

• Recovery equipment

• Other permanently installed accessories

Spring selection should be based on the vehicle's actual configuration and additional weight.

Fully Serviceable ICON Shocks

The ICON shocks included with the K53052T system are fully serviceable.

Unlike disposable replacement shocks, ICON shocks can be serviced and rebuilt as components wear over time, helping extend the usable life of the suspension system.

Bolt-On Installation

The ICON Stage 2 Suspension System is designed as a bolt-on suspension upgrade.

No cutting or welding is required.

A professional wheel alignment should be performed after installation and final ride-height adjustment.

Product Specifications

Manufacturer: ICON Vehicle Dynamics
Part Number: K53052T
Product: Stage 2 Suspension System
Toyota 4Runner Fitment: 2003-2009
Toyota FJ Cruiser Fitment: 2007-2009
Front Shock Series: ICON 2.5 Series Extended Travel
Front Lift Range: 0-3.5"
Upper Control Arms: ICON Tubular Steel
UCA Joint: ICON Delta Joint
Rear Shock Series: ICON 2.0 Aluminum Series Internal Reservoir
Rear Shock Lift Range: 1-3"
Rear Coil Spring Lift: 2"
Front Shock Shaft: 7/8"
Rear Shock Shaft: 5/8"
Front Coilover Component: 58645
Upper Control Arm Component: 58451DJ
Rear Coil Spring Component: 52700
Rear Shock Component: 56505
OEM Wheel & Tire Compatible: Yes
Recommended Tire Size: 33" x 11.50"
Installation: Bolt-On
Cutting Required: No
Welding Required: No
Shocks Serviceable: Yes
Shipping Weight: Approximately 105 lbs.
UPC: 840103416816

Frequently Asked Questions

What vehicles does ICON K53052T fit?
ICON lists K53052T for the 2003-2009 Toyota 4Runner and 2007-2009 Toyota FJ Cruiser.

How much lift does ICON K53052T provide?
The front ICON coilovers are adjustable from 0-3.5 inches of lift, while the included rear coil springs provide approximately 2 inches of rear lift.

What is the difference between ICON K53052T and K53052?
The primary difference is the upper control arm construction. K53052T uses ICON tubular steel upper control arms with Delta Joint, while K53052 uses ICON billet aluminum upper control arms. Both systems use Extended Travel front coilovers.

What is the difference between ICON Stage 1 and Stage 2?
Stage 2 upgrades the front suspension with Extended Travel 2.5 Series coilovers and ICON upper control arms, providing increased front droop travel and suspension articulation compared with Stage 1.

Why does Stage 2 require upper control arms?
The Extended Travel coilovers provide additional suspension travel. ICON specifies upgraded upper control arms to accommodate the increased travel and provide the required articulation.

What upper control arms are included with K53052T?
The system includes ICON 58451DJ tubular steel upper control arms with Delta Joint.

What is an ICON Delta Joint?
The Delta Joint is ICON's patented high-angle joint combining the durability and sealed characteristics of a ball joint with greater angularity similar to a traditional uniball. It features metal-on-metal construction and a greaseable design.

Does K53052T fit a 2010-2014 FJ Cruiser?
No. ICON lists the complete K53052T system specifically for the 2007-2009 FJ Cruiser.

Does K53052T fit the Lexus GX?
Some individual components in K53052T have Lexus GX applications, but ICON does not list the complete K53052T system for the GX. Complete-system fitment should follow ICON's K53052T application listing.

What size tires does ICON recommend?
ICON recommends 33" x 11.50" aftermarket tires with its specified wheel dimensions. Larger tires may require fender trimming and additional modifications.

Can I use the factory wheels and tires?
Yes. ICON specifically lists OEM wheels and tires as compatible.

Are the ICON shocks rebuildable?
Yes. ICON states that the shocks included in the K53052T system are fully serviceable.

Does installation require cutting or welding?
No. ICON designed K53052T as a bolt-on suspension system with no cutting or welding required.

Do I need an alignment after installation?
Yes. A professional alignment is recommended after installation and final ride-height adjustment.