ICON Stage 3 Suspension System with Tubular UCA & Rear Links – 2003-2009 4Runner & 2007-2009 FJ Cruiser | K53053T

Upgrade your Toyota's suspension with the ICON Vehicle Dynamics Stage 3 Suspension System with Tubular Upper Control Arms and Rear Lower Links, part #K53053T.

Designed specifically for the 2003-2009 Toyota 4Runner and 2007-2009 Toyota FJ Cruiser, this complete ICON Stage 3 suspension package combines Extended Travel 2.5 Series front coilovers, tubular steel upper control arms with ICON Delta Joint, 2-inch rear lift coil springs, 2.0 Aluminum Series rear shocks, and heavy-duty tubular steel rear lower links.

Compared with ICON's Stage 2 system, Stage 3 adds upgraded rear lower links for increased strength, improved rear suspension geometry and adjustable pinion angle.

The result is a comprehensive suspension system designed to improve ride quality, wheel travel, suspension articulation, handling and off-road performance while providing up to 3.5 inches of adjustable front lift.

Vehicle Fitment

Toyota 4Runner

• 2003

• 2004

• 2005

• 2006

• 2007

• 2008

• 2009

Toyota FJ Cruiser

• 2007

• 2008

• 2009

IMPORTANT: ICON lists the complete K53053T Stage 3 system specifically for 2003-2009 Toyota 4Runner and 2007-2009 Toyota FJ Cruiser applications.

Individual components included in K53053T may fit additional Toyota and Lexus vehicles, but that does not extend the fitment of the complete K53053T suspension system.

Features

• Complete ICON Stage 3 Suspension System

• Fits 2003-2009 Toyota 4Runner

• Fits 2007-2009 Toyota FJ Cruiser

• Adjustable 0-3.5" front lift

• ICON Extended Travel 2.5 Series front coilovers

• Increased front droop and wheel travel

• ICON tubular steel upper control arms

• ICON patented Delta Joint

• ICON tubular steel rear lower links

• Rear lower links provide adjustable pinion angle

• Rear links designed for correct roll-steer geometry

• Low-maintenance multi-durometer rear link bushings

• 2" rear lift coil springs

• ICON 2.0 Aluminum Series rear shocks

• Vehicle-specific front and rear shock tuning

• Increased wheel travel and ride quality over stock

• Improved on-road and off-road handling

• 6061 aircraft-grade 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 K53053T

What Does Stage 3 Add Over Stage 2?

The ICON K53053T Stage 3 system builds upon the tubular-UCA Stage 2 suspension package by adding ICON's heavy-duty tubular steel rear lower links.

The Stage 3 system includes:

• Extended Travel 2.5 Series front coilovers

• Tubular steel Delta Joint upper control arms

• 2" rear lift coil springs

• 2.0 Aluminum Series rear shocks

• Tubular steel rear lower links

The rear links provide additional strength while also allowing optimum rear pinion angle adjustment and improving rear suspension geometry.

Adjustable 0-3.5" Front Lift

The ICON Extended Travel 2.5 Series 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 performance coilovers 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

K53053T uses ICON 58645 Extended Travel 2.5 Series Vehicle-Specific Internal Reservoir Coilovers.

The Extended Travel design provides additional front suspension droop and wheel travel when combined with the included ICON upper control arms.

Key features include:

• 2.5-inch shock body

• Extended Travel design

• Vehicle-specific shock tuning

• Adjustable 0-3.5" front lift

• 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

ICON Tubular Upper Control Arms

The K53053T Stage 3 system includes ICON 58451DJ tubular steel upper control arms.

These heavy-duty UCAs are designed to complement the Extended Travel front coilovers and provide the additional articulation required 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 the ICON Delta Joint.

ICON Delta Joint

The tubular upper control arms use ICON's patented Delta Joint.

The Delta Joint is a heavy-duty, high-angle joint designed to combine the durability of a traditional ball joint with the increased angularity and articulation associated with a uniball.

Delta Joint features include:

• Heavy-duty high-angle design

• Greater angularity than a typical 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 Steel Rear Lower Links

The defining upgrade of the K53053T Stage 3 system is the addition of ICON 54000T tubular steel rear lower links.

The factory rear lower links can be vulnerable to bending and damage during demanding off-road use. ICON's tubular links are designed to be significantly stronger than the OE components while also improving rear suspension functionality.

Benefits include:

• Heavy-duty tubular steel construction

• Increased strength compared with OE rear links

• Adjustable rear pinion angle

• Improved rear suspension geometry

• Correct roll-steer geometry

• Low-maintenance multi-durometer bushings

• Improved on-road and off-road handling

• Direct replacement for factory rear lower links

Adjustable Rear Pinion Angle

Lifting a vehicle changes the relationship between the rear axle and driveshaft.

The ICON tubular rear lower links allow the rear suspension to be adjusted for optimum pinion angle, helping maintain proper driveline geometry after the vehicle has been lifted.

This is an important functional advantage over non-adjustable factory-style rear links.

Correct Roll-Steer Geometry

ICON designed the tubular rear lower links to provide correct roll-steer geometry.

This contributes to predictable rear suspension behavior and improved handling both on pavement and off road.

The links therefore provide more than simply increased strength—they're designed as a functional suspension upgrade.

Low-Maintenance Rear Link Bushings

ICON's tubular rear lower links utilize multi-durometer bushings designed to provide a balance of articulation, control and durability.

The low-maintenance bushing design makes these links well suited for vehicles that serve double duty as both daily drivers and off-road vehicles.

2" Rear Lift Coil Springs

The K53053T includes ICON 52700 2-inch rear lift coil springs.

The rear springs complement the adjustable front coilovers and provide additional rear ride height while maintaining balanced front-to-rear suspension performance.

2.0 Aluminum Series Rear Shocks

ICON pairs the rear lift springs with 56505 2.0 Aluminum Series Vehicle-Specific Internal Reservoir rear shocks.

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 for balanced damping and vehicle control.

System Components

The ICON K53053T Stage 3 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

Tubular Rear Lower Links

• ICON 54000T

• Quantity: 1 kit

• Heavy-duty tubular steel construction

• Adjustable pinion angle

• Multi-durometer bushings

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 K53053T 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 states 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 K53053T 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 K53053T Stage 3 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 front ride-height adjustment.

Because Stage 3 replaces the rear lower links, the rear pinion angle should also be properly adjusted during installation.

Product Specifications

Manufacturer: ICON Vehicle Dynamics
Part Number: K53053T
Product: Stage 3 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 Lower Links: ICON Tubular Steel
Rear Link Adjustment: Adjustable Pinion Angle
Rear Link Bushings: Multi-Durometer
Rear Coil Spring Lift: 2"
Rear Shock Series: ICON 2.0 Aluminum Series Internal Reservoir
Rear Shock Lift Range: 1-3"
Front Shock Shaft: 7/8"
Rear Shock Shaft: 5/8"
Front Coilover Component: 58645
Upper Control Arm Component: 58451DJ
Rear Lower Link Component: 54000T
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 131 lbs.
UPC: 840103416830

Frequently Asked Questions

What vehicles does ICON K53053T fit?
ICON lists K53053T for the 2003-2009 Toyota 4Runner and 2007-2009 Toyota FJ Cruiser.

How much lift does ICON K53053T provide?
The front Extended Travel coilovers provide 0-3.5 inches of adjustable lift, while the included rear coil springs provide approximately 2 inches of rear lift.

What is the difference between ICON K53052T Stage 2 and K53053T Stage 3?
K53053T Stage 3 adds ICON's 54000T tubular steel rear lower links to the components found in the tubular-UCA Stage 2 system.

What is the difference between K53053 and K53053T?
The primary difference is control arm construction. K53053T uses tubular steel upper control arms and tubular steel rear lower links, while K53053 uses ICON's billet versions of those components.

What upper control arms are included with K53053T?
The system includes ICON 58451DJ tubular steel upper control arms with Delta Joint.

What rear lower links are included?
K53053T includes ICON 54000T tubular steel rear lower links.

Can the rear pinion angle be adjusted?
Yes. ICON designed the tubular rear lower links to allow adjustment for optimum rear pinion angle.

Why is pinion angle adjustment useful?
Lifting a vehicle changes rear suspension and driveline geometry. Adjustable rear links allow the axle position and pinion angle to be properly set for the lifted configuration.

Does K53053T use Extended Travel coilovers?
Yes. K53053T includes ICON 58645 Extended Travel 2.5 Series front coilovers.

Does K53053T fit a 2010-2014 FJ Cruiser?
No. ICON lists the complete K53053T system specifically for the 2007-2009 FJ Cruiser.

Does K53053T fit the Lexus GX?
Some individual components included in K53053T fit Lexus GX applications, but ICON does not list the complete K53053T Stage 3 system for the GX. Follow ICON's complete-system fitment.

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 with K53053T are fully serviceable.

Does installation require cutting or welding?
No. ICON designed K53053T as a bolt-on system with no cutting or welding required.