ICON Stage 4 Suspension System with Tubular UCA & Remote Reservoir Shocks – 2010-2024 4Runner & 2010-2014 FJ Cruiser | K53064T

Upgrade your Toyota with the ICON Vehicle Dynamics Stage 4 Suspension System with Tubular Upper Control Arms and Rear Lower Links, part #K53064T, a comprehensive suspension package designed for increased wheel travel, improved ride quality, enhanced vehicle control and serious off-road performance.

Designed for the 2010-2024 Toyota 4Runner and 2010-2014 Toyota FJ Cruiser, the ICON Stage 4 system combines Extended Travel 2.5 Series front coilovers, tubular steel upper control arms with ICON Delta Joint, tubular steel adjustable rear lower links, 2-inch rear lift coil springs, and 2.5 Aluminum Series Remote Reservoir rear shocks with Bump Zone technology.

The front coilovers provide 0-3.5 inches of adjustable front lift and increased droop travel, while ICON's tubular upper control arms provide the additional articulation and improved alignment geometry needed to take advantage of the Extended Travel design.

At the rear, heavy-duty tubular lower links provide increased strength and pinion-angle adjustment, while the larger 2.5 Series Remote Reservoir rear shocks increase oil capacity and cooling for more consistent damping during demanding off-road use.

Vehicle Fitment

Toyota 4Runner

• 2010-2024

Toyota FJ Cruiser

• 2010-2014

IMPORTANT: ICON lists the complete K53064T Stage 4 system specifically for 2010-2024 Toyota 4Runner and 2010-2014 Toyota FJ Cruiser applications.

Important KDSS Fitment Note

KDSS-equipped vehicles require ICON rear track bar #54200.

ICON also recommends an adjustable rear track bar on non-KDSS vehicles to help properly realign the rear axle after lifting, although it is not required.

Features

• Complete ICON Stage 4 Suspension System

• Fits 2010-2024 Toyota 4Runner

• Fits 2010-2014 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

• Added UCA strength and durability

• Improved front suspension and alignment geometry

• Increased caster over stock

• ICON tubular steel rear lower links

• Increased strength compared with OE rear lower links

• Improved rear suspension geometry

• Adjustable rear pinion angle

• Low-maintenance multi-durometer rear link bushings

• 2" rear lift coil springs

• ICON 2.5 Aluminum Series Remote Reservoir rear shocks

• ICON Bump Zone technology

• Remote reservoirs increase shock oil capacity

• Improved shock cooling during demanding use

• More consistent damping during prolonged suspension cycling

• Vehicle-specific front and rear shock tuning

• Increased wheel travel and ride quality over stock

• Heavy-duty 7/8" front and rear shock shafts

• 6061 aircraft-grade CNC-machined shock components

• Corrosion-resistant CAD-plated coilover shock bodies

• FK Rod End bearings for increased longevity and minimal deflection

• Fully serviceable shocks

• Bolt-on installation

• No cutting or welding required

• ICON Vehicle Dynamics part number K53064T

What Does Stage 4 Add Over Stage 3?

The primary upgrade from ICON K53063T Stage 3 to K53064T Stage 4 is the rear shock package.

Stage 3 already includes:

• Extended Travel 2.5 Series front coilovers

• Tubular Delta Joint upper control arms

• Tubular steel rear lower links

• 2" rear lift coil springs

• 2.0 Aluminum Series rear shocks

Stage 4 upgrades the rear shocks to:

• ICON 57810P 2.5 Aluminum Series Remote Reservoir rear shocks

• Larger 2.5-inch shock bodies

• External remote reservoirs

• Increased shock oil volume

• Improved heat dissipation

• More consistent damping during prolonged use

• Heavy-duty 7/8-inch shock shafts

• ICON Bump Zone technology

This makes Stage 4 especially attractive for vehicles that see more demanding off-road use, extended trail driving, washboard roads and conditions that generate significant shock heat.

Adjustable 0-3.5" Front Lift

The ICON Stage 4 front coilovers provide 0 to 3.5 inches of adjustable front lift.

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

Unlike a basic spacer lift, ICON's coilovers replace the factory shock and spring assemblies with performance suspension components engineered 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 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

K53064T uses ICON 58647 Extended Travel 2.5 Series Vehicle-Specific Internal Reservoir Coilovers.

The Extended Travel design increases front droop travel when paired with the included ICON tubular upper control arms.

Key features include:

• 2.5-inch shock body

• Extended Travel design

• Increased front droop travel

• Vehicle-specific shock tuning

• Adjustable 0-3.5" front lift

• Internal reservoir design

• 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 K53064T Stage 4 system includes ICON 58451DJ tubular steel upper control arms.

These heavy-duty UCAs are designed specifically to complement ICON's Extended Travel front coilovers and provide the additional articulation needed to take advantage of the increased suspension travel.

Benefits include:

• Heavy-duty tubular steel construction

• Increased strength and durability

• Improved front suspension geometry

• Increased joint articulation

• Increased caster over stock

• Helps retain factory alignment specifications

• Allows proper wheel alignment at increased ride height

• ICON patented Delta Joint

ICON Delta Joint

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

The Delta Joint is a heavy-duty high-angle ball joint designed to combine the durability and weather protection of a conventional ball joint with the increased angularity and performance characteristics of a traditional 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

ICON Tubular Rear Lower Links

The K53064T Stage 4 system includes ICON 54000T tubular steel rear lower links.

These links replace the factory rear lower links with substantially stronger components designed for lifted and off-road Toyota applications.

Key benefits include:

• Heavy-duty tubular steel construction

• Increased strength compared with OE rear lower links

• Improved rear suspension geometry

• Adjustable rear pinion angle

• Low-maintenance multi-durometer bushings

• Increased durability for off-road use

• Direct replacement for the 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 can be adjusted to help achieve the optimum rear pinion angle after the vehicle has been lifted.

Proper pinion-angle adjustment helps maintain appropriate driveline geometry while allowing the rear suspension to operate as intended.

2" Rear Lift Coil Springs

The K53064T includes ICON 52700 2-inch rear lift coil springs.

These springs provide approximately 2 inches of rear lift over stock, helping create a level front-to-rear stance while maintaining on-road comfort and improving off-road suspension performance.

2.5 Aluminum Series Remote Reservoir Rear Shocks

A major feature of the K53064T Stage 4 system is the pair of ICON 57810P 2.5 Aluminum Series Vehicle-Specific Remote Reservoir rear shocks.

Compared with the 2.0 internal reservoir shocks used in Stage 3, these larger remote reservoir shocks provide increased oil capacity and improved cooling for more consistent damping during demanding use.

Rear shock features include:

• 2.5-inch aluminum shock bodies

• External remote reservoirs

• Heavy-duty 7/8-inch shock shafts

• Increased shock oil volume

• Improved heat dissipation

• More consistent damping during prolonged use

• Vehicle-specific shock tuning

• Designed for 1-3 inches of rear lift

• ICON Bump Zone technology

• Fully serviceable construction

ICON Bump Zone Technology

The Stage 4 rear shocks feature ICON's internal Bump Zone technology.

Bump Zone creates an additional 20% of damping force to help better control hard bottom-outs.

This additional damping helps:

• Better control hard bottom-outs

• Reduce harsh suspension impacts

• Improve vehicle control

• Manage larger off-road impacts

• Maintain a smoother and more controlled ride

This allows the shock to remain compliant during normal suspension movement while providing additional damping when the suspension is pushed toward the end of its travel.

Why Remote Reservoir Shocks?

Remote reservoir shocks provide several advantages during demanding off-road use.

The external reservoir increases the total volume of shock oil and helps keep the shock operating at a cooler temperature during heavy use.

Benefits include:

• Increased shock oil capacity

• Improved heat management

• Reduced shock fade

• More consistent damping

• Better performance during prolonged off-road driving

• Improved control over repeated impacts and rough terrain

For vehicles that regularly encounter washboard roads, extended trail driving or aggressive off-road conditions, this is one of the most significant upgrades Stage 4 provides over Stage 3.

KDSS Compatibility

The K53064T can be used with KDSS-equipped applications, but ICON specifically states:

KDSS-equipped vehicles require ICON rear track bar #54200.

This is an important fitment requirement for customers ordering K53064T for a KDSS-equipped 4Runner or FJ Cruiser.

Adjustable Rear Track Bar Recommendation

Even on non-KDSS vehicles, ICON recommends an adjustable rear track bar to help realign the rear axle after lifting, although it is not required.

Because the factory track bar has a fixed length, increasing rear ride height can shift the solid rear axle laterally.

An adjustable track bar allows the axle to be properly repositioned beneath the vehicle.

Recommended Track Bar: ICON #54200

Wheel & Tire Recommendations

ICON confirms that OEM wheels and tires are compatible with the K53064T 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"

ICON notes that larger tires may fit, but fender trimming and 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 offers an optional 700 lb/in Expedition Coil for heavier-equipped vehicles.

This may be beneficial for 4Runners and FJ Cruisers carrying substantial permanent front-end weight from accessories such as:

• Steel bumpers

• Winches

• Skid plates

• Recovery equipment

• Other permanently installed accessories

Fully Serviceable ICON Shocks

The ICON shocks included with K53064T are fully serviceable.

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

Bolt-On Installation

The ICON K53064T Stage 4 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 the system includes adjustable rear lower links, the rear pinion angle should also be checked and properly adjusted during installation.

System Components

The ICON K53064T Stage 4 Suspension System includes:

Front Extended Travel Coilovers

• ICON 58647

• 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

• Heavy-duty tubular steel construction

• ICON Delta Joint

Tubular Rear Lower Links

• ICON 54000T

• Quantity: 1 kit

• Heavy-duty tubular steel construction

• Low-maintenance multi-durometer bushings

• Adjustable rear pinion angle

Rear Coil Springs

• ICON 52700

• Quantity: 1 kit / pair

• 2" rear lift coil springs

Rear Remote Reservoir Shocks

• ICON 57810P

• Quantity: 1 pair

• 2.5 Aluminum Series

• Remote reservoir

• Vehicle-specific tuning

• Bump Zone technology

• Designed for 1-3" rear lift

Product Specifications

Manufacturer: ICON Vehicle Dynamics
Part Number: K53064T
Product: Stage 4 Suspension System
Toyota 4Runner Fitment: 2010-2024
Toyota FJ Cruiser Fitment: 2010-2014
Front Shock Series: ICON 2.5 Series Extended Travel
Front Shock Type: Internal Reservoir Coilover
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 2.5 Aluminum Series
Rear Shock Type: Remote Reservoir
Rear Shock Lift Range: 1-3"
Rear Shock Technology: ICON Bump Zone
Front Shock Shaft: 7/8"
Rear Shock Shaft: 7/8"
Front Coilover Component: 58647
Upper Control Arm Component: 58451DJ
Rear Lower Link Component: 54000T
Rear Coil Spring Component: 52700
Rear Shock Component: 57810P
KDSS: Requires ICON 54200 Rear Track Bar
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: 153 lbs.
UPC: 840103417004

Frequently Asked Questions

What vehicles does ICON K53064T fit?
ICON lists K53064T for the 2010-2024 Toyota 4Runner and 2010-2014 Toyota FJ Cruiser.

How much lift does ICON K53064T provide?
The front coilovers provide 0-3.5 inches of adjustable lift, while the included rear springs provide approximately 2 inches of rear lift.

What is the difference between ICON K53063T Stage 3 and K53064T Stage 4?
Stage 4 upgrades the rear shocks to ICON 2.5 Aluminum Series Remote Reservoir shocks with Bump Zone technology, providing increased oil capacity, improved cooling and more consistent damping during demanding off-road use.

What is the difference between K53064 and K53064T?
K53064 uses billet aluminum upper control arms and billet aluminum rear lower links, while K53064T uses tubular steel upper control arms and tubular steel rear lower links. Both use the same Extended Travel front coilovers, rear springs and 2.5 Remote Reservoir rear shocks.

What rear shocks are included with K53064T?
K53064T includes ICON 57810P 2.5 Aluminum Series Remote Reservoir rear shocks with Bump Zone technology.

What is ICON Bump Zone technology?
ICON's Bump Zone creates an additional 20% of damping force to help better control hard bottom-outs.

Which upper control arms are included?
K53064T includes ICON 58451DJ tubular steel upper control arms with Delta Joint.

What rear lower links are included?
K53064T includes ICON 54000T tubular steel rear lower links.

Can the rear pinion angle be adjusted?
Yes. The tubular rear lower links can be adjusted to help achieve the optimum rear pinion angle after lifting.

Does K53064T fit KDSS-equipped vehicles?
Yes, but ICON specifically states that KDSS-equipped vehicles require ICON rear track bar #54200.

Is an adjustable rear track bar required on non-KDSS vehicles?
No. ICON recommends an adjustable track bar to help realign the rear axle after lifting, but it is not required on non-KDSS vehicles.

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

Can I use factory wheels and tires?
Yes. ICON confirms that OEM wheels and tires are compatible.

Is a heavier front spring available?
Yes. ICON offers an optional 700 lb/in Expedition Coil for heavier-equipped vehicles.

Are the ICON shocks rebuildable?
Yes. ICON states that the shocks included with K53064T are fully serviceable.

Does installation require cutting or welding?
No. K53064T is a bolt-on suspension system with no cutting or welding required.