ICON V.S. 2.5 Series Extended Travel Coilover Kit with Remote Reservoir and CDEV for 2010-2024 Toyota 4Runner

The ICON Vehicle Dynamics V.S. 2.5 Series Extended Travel Coilover Kit is a front suspension upgrade for 2010–2024 Toyota 4Runner, delivering 0–3.5 inches of lift height adjustability through a 2.5-inch shock body with remote reservoir and Compression Damping Electronic Valve (CDEV) technology. A 700 lb/in coil spring is included. This kit requires aftermarket upper control arms and, for full CDEV function, the ICON Intelligent Control (IIC) kit (part 53504) and CDEV rear shocks (part 57810EP), each sold separately.

Shipping: ICON parts ship direct from ICON Vehicle Dynamics, mostly by UPS Ground. Lead times vary by part and some items are built to order, so please allow extra time. We email tracking as soon as your order ships.

Vehicle-Specific Valving for On- and Off-Road Control

ICON tunes the valving of this coilover kit specifically for the 4Runner's suspension geometry and weight distribution. A generic valving curve forces a compromise between highway compliance and trail composure; vehicle-specific tuning lets the shock respond correctly across both without the owner having to choose. The result is a sport-tuned feel on pavement and controlled damping on broken terrain, without swapping components between uses.

Electronic Compression Damping from Inside the Cab

The CDEV is an electronically controlled valve that meters oil flow to regulate compression damping force. It reacts in under 40 milliseconds and makes continuous, infinitely variable adjustments based on data from an onboard G-force sensor and gyroscope. Hydraulic circuits are custom-tailored per application to maximize resolution and dynamic range for the 4Runner specifically. The system is operated through the ICON Intelligent Control app on an iOS device, so the driver can adjust damping settings or let the system respond to terrain automatically without stopping or leaving the vehicle. Note: the IIC kit (part 53504) is required for this function and is sold separately.

Remote Reservoir and Extended-Travel Construction

Remote reservoirs increase oil volume, which extends the duration of consistent damping during sustained off-road use and keeps operating temperatures lower under heavy cycling. The 2.5-inch shock body provides greater piston area than stock, improving damping capacity across varying terrain. Shock bodies are CAD-plated for corrosion resistance and fitted with 7/8-inch induction-hardened, chrome-plated shafts. FK rod end bearings reduce deflection and extend service life. All components are 100% rebuildable and revalveable. Installation is bolt-on, with no cutting or welding required.

Features

• 2.5" shock body: larger piston area than stock for improved damping capacity
• 0–3.5" lift adjustability: adjustable for lift height over stock on a stock-equipped vehicle
• 700 lb/in coil springs included: recommended for 4Runners with added front-end weight such as bumpers or winches
• CDEV with <40ms response: infinitely variable electronic compression damping, app-controlled via iOS
• Remote reservoir: increases oil volume for cooler, more consistent damping during extended off-road use
• 6061 aircraft-grade aluminum CNC components: CAD-plated shock bodies, 7/8" induction-hardened chrome shafts, FK rod end bearings
• Bolt-on installation: no cutting or welding required; 100% rebuildable and revalveable

Specifications

Who This Is For and Isn't

This kit suits 2010–2024 Toyota 4Runner owners who want electronically adjustable front suspension with 0–3.5 inches of lift, remote-reservoir damping for sustained off-road use, and in-cab control over compression damping settings. The 700 lb/in spring rate is best suited to 4Runners carrying added front-end weight such as an aftermarket bumper or winch.

This kit does not fit any vehicle other than the 2010–2024 Toyota 4Runner. It requires aftermarket upper control arms and is not compatible with stock upper control arms (Application Note #18). Full CDEV functionality requires the ICON Intelligent Control kit (part 53504) and CDEV rear shocks (part 57810EP), both sold separately, and an iOS device to run the ICON Intelligent Control app. Android devices are not supported. The 700 lb/in spring rate is not recommended for stock-weight front ends.

Common Questions

Does this coilover kit work with the factory upper control arms?

No. The ICON V.S. 2.5 Series Extended Travel Coilover Kit for the 2010–2024 Toyota 4Runner requires aftermarket upper control arms. Per Application Note #18, these systems are to be used with aftermarket upper control arms only and are not designed to function correctly with the factory arms.

What additional parts are needed to use the CDEV electronic damping feature?

Full CDEV functionality on the 2010–2024 Toyota 4Runner requires the ICON Intelligent Control (IIC) kit (part 53504) and CDEV rear shocks (part 57810EP), both sold separately. An iOS device is also required to run the ICON Intelligent Control app; Android is not supported.

Is the 700 lb/in spring rate appropriate for a stock 4Runner?

The 700 lb/in spring rate included with this coilover kit is recommended only for 4Runners with additional weight added to the front end, such as an aftermarket bumper or winch. For stock-weight front ends, consulting the ICON Help Center for the appropriate spring rate option is advised before purchasing this SKU.

Can the shocks be rebuilt or revalved after extended use?

Yes. The ICON V.S. 2.5 Series coilovers in this kit are 100% rebuildable and 100% revalveable, which means the shocks can be serviced and tuned after extended use rather than replaced outright. A bump stop spacer kit is also available separately to increase threads showing beyond the maximum recommendation.

Will factory wheels and tires clear this suspension kit?

Yes, factory wheels and tires are confirmed compatible with this coilover kit on the 2010–2024 Toyota 4Runner. For aftermarket fitments, ICON Alloys wheels in 17x8.5, 18x9, or 20x9 at specific backspacing and offset figures are recommended. Aftermarket tires up to 33x11.50" are recommended; larger tires may fit but fender trimming and modifications may be required.