ICON V.S. 2.5 Aluminum Rear Shocks Remote Reservoir CDEV 2022-2026 Toyota Tundra 3-3.5" Lift Pair

The ICON Vehicle Dynamics V.S. 2.5 Aluminum Series rear shock absorbers (SKU 57841EP) are a vehicle-specific pair engineered for 2022–2026 Toyota Tundra builds running 3–3.5 inches of rear lift, combining a remote reservoir, a 6061-billet aluminum Bump Zone manifold, and the ICON Compression Damping Electronic Valve (CDEV) for tunable on- and off-road performance. Lift height compatibility varies by trim: non-TRD Tundras accept 3–3.5 inches of rear lift, while TRD Tundras equipped with rear coil springs are limited to 3 inches.

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Bump Zone Damping Control

A 6061-billet aluminum manifold positioned just below the shock's top cap creates an internal Bump Zone that adds 20% of damping force as the shock approaches full compression. That extra resistance keeps the shock loading progressively rather than spiking, so the chassis stays composed at speed over whoops, ledges, and washboard without a harsh bottom-out. Because the manifold is machined from aircraft-grade aluminum rather than cast, it maintains dimensional consistency across heat cycles and resists corrosion without adding unnecessary weight.

In-Cab Electronic Damping Adjustment

The included CDEV is an electronically controlled valve that meters oil flow to regulate compression damping force. The valve responds in under 40 milliseconds and adjusts infinitely across its range, so damping changes track terrain in real time rather than switching between fixed positions. ICON's hydraulic circuits are calibrated specifically for the Tundra's weight and suspension geometry, giving the full resolution of the valve's range practical usability rather than compressing it into the middle of a generic curve. The system is driven by the ICON Intelligent Control app and an onboard G-force sensor and gyroscope that read terrain and apply user-defined algorithms automatically. Note: an iOS device is required to run the ICON Intelligent Control app, and the applicable IIC kit and CDEV-equipped front shocks must be installed separately for the system to function.

Remote Reservoir and Long-Term Serviceability

The remote reservoir increases oil volume, which dissipates heat more effectively during sustained off-road use and reduces shock fade on long runs. The nitrogen-charged monotube design with a one-piece digressive piston and vehicle-specific valving keeps damping consistent across a wide temperature range, aided by premium-grade 5WT shock oil. The hard-anodized, impact-extruded aluminum cylinder, 7/8-inch induction-hardened chrome-plated shaft, and PTFE-lined spherical bearings are all fully serviceable: every component is rebuildable and re-tunable rather than replaced as a unit.

Features

• CDEV Electronic Valve: infinitely variable compression damping, reacts in under 40ms, controlled via ICON Intelligent Control app
• Internal Bump Zone: 6061-billet aluminum manifold adds 20% damping force near full compression to resist bottom-outs
• Remote Reservoir: increases oil volume for improved heat dissipation and reduced fade during prolonged off-road use
• Hard-Anodized Aluminum Cylinder: one-piece impact-extruded construction with corrosion-resistant finish
• 7/8" Chrome-Plated Shaft: induction-hardened for durability; PTFE-lined spherical bearings included
• Fully Rebuildable and Re-Tunable: all components are serviceable; vehicle-specific valving and 5WT shock oil

Specifications

Who This Is For and Isn't

These shocks suit 2022–2026 Toyota Tundra owners running 3–3.5 inches of rear lift on non-TRD trims, or 3 inches on TRD trims with rear coil springs, who want electronically adjustable compression damping and remote-reservoir heat management for mixed street and off-road driving.

These shocks are not compatible with Tundras equipped with Load-Leveling Rear Height Control Air Suspension or Adaptive Variable Suspension (AVS). The CDEV system requires a separately purchased IIC kit and CDEV-equipped front shocks; an iOS device is also required to operate the ICON Intelligent Control app, and the electronic damping feature cannot function without all three components in place. Lift heights stated assume a stock-equipped vehicle.

Common Questions

What vehicles do these shocks fit?

The ICON 57841EP rear shocks are built specifically for 2022–2026 Toyota Tundra. They support 3–3.5 inches of rear lift on non-TRD Tundras and 3 inches of rear lift on TRD Tundras equipped with rear coil springs. Lift heights are based on a stock-equipped vehicle with no additional modifications to the suspension.

Are these compatible with my Tundra's factory air suspension or AVS?

No. The ICON V.S. 2.5 Aluminum Series rear shocks (57841EP) are not compatible with Tundras equipped with Load-Leveling Rear Height Control Air Suspension or Adaptive Variable Suspension (AVS). Buyers with either of those factory systems should confirm compatibility before ordering.

What else do I need to use the CDEV electronic damping feature?

The CDEV valve is included with these rear shocks, but the full ICON Intelligent Control system also requires the applicable IIC kit and CDEV-equipped front shocks, both sold separately. An iOS device is required to run the ICON Intelligent Control app; Android is not currently supported per the vendor's application notes.

Can these shocks be rebuilt or retuned after extended use?

Yes. The ICON V.S. 2.5 Aluminum Series shocks are fully rebuildable and re-tunable. The vehicle-specific valving, 5WT shock oil, and all internal components are serviceable, so the shocks can be refreshed or revalved rather than replaced as a unit after extended off-road use.

Does this listing include both rear shocks?

Yes. SKU 57841EP is sold as a pair: both driver-side and passenger-side rear shock absorbers are included. These are rear-position shocks only; front shocks are a separate purchase.