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Maximize Rear Suspension Performance on Your 2025-2026 Toyota 4Runner with the ICON 57872P VS 2.5 Series Remote Reservoir Rear Shock Pair
The ICON 57872P is a VS 2.5 Series remote reservoir rear shock pair engineered specifically for the 2025-2026 Toyota 4Runner. It provides 0 to 3 inches of rear lift height adjustability and delivers significantly improved damping performance, suspension travel, and heat management over the factory rear shock setup.
The 2.5-inch diameter aluminum shock bodies use vehicle-specific valving developed for the new-generation 4Runner rear suspension, and remote reservoirs substantially increase shock oil volume and heat dissipation capacity for consistent damping under sustained off-road use. The ICON 57872P pairs directly with ICON front coilover kits and rear lift springs to create a complete suspension system for the 2025-2026 4Runner platform. All components are CNC machined from 6061 aircraft-grade aluminum and are fully rebuildable and revalveable.
Key Features
- 0 to 3 inches of rear lift height adjustability for the 2025-2026 Toyota 4Runner
- 2.5-inch diameter aluminum shock bodies with remote reservoirs
- Remote reservoir design increases shock oil volume and heat dissipation for sustained off-road use
- Vehicle-specific valving engineered for the new-generation 4Runner rear suspension
- CNC machined 6061 aircraft-grade aluminum construction
- CAD plated finish for corrosion resistance
- Fully rebuildable and revalveable for long-term serviceability
- Sold as a pair (driver and passenger rear)
Vehicle Fitment
| Year Range | Make | Model |
|---|---|---|
| 2025-2026 | Toyota | 4Runner |
Specifications
| Detail | Value |
|---|---|
| Part Number | 57872P |
| Position | Rear |
| Lift Range | 0 to 3 inches |
| Shock Body Diameter | 2.5 inches |
| Reservoir Type | Remote reservoir |
| Construction | CNC machined 6061 aircraft-grade aluminum |
| Finish | CAD plated for corrosion resistance |
| Serviceability | Fully rebuildable and revalveable |
| Sold As | Pair (driver and passenger) |
| UPC | N/A |
What's Included
- 2x ICON VS 2.5 Series remote reservoir rear shocks (driver and passenger)
- Remote reservoirs with mounting brackets
- All installation hardware
About ICON Vehicle Dynamics
ICON Vehicle Dynamics is a California-based manufacturer of high-performance suspension components for trucks, SUVs, and off-road vehicles. ICON engineers and manufactures coilovers, remote reservoir shocks, upper control arms, and complete suspension systems. All ICON products are designed, tested, and built in the USA for maximum suspension travel, ride quality, and long-term durability.
Related Suspension Parts on Our Site
- ICON 58692 Front 2.5 VS IR Coilover Kit (2025-2026 4Runner 4WD) - Front coilover to pair with this rear shock upgrade
- ICON 58693 Front 2.5 VS IR Coilover Kit (2025-2026 4Runner 2WD) - Front coilover for 2WD models
- ICON 52753 Rear Dual Rate Coil Spring Kit (2025-2026 Toyota 4Runner) - Rear lift springs to run with the 57872P shocks
- ICON 56523 Rear 2.0 VS IR Shock (2025-2026 Toyota 4Runner) - Entry-level rear shock option for the same platform
Frequently Asked Questions
What is the ICON 57872P?
The ICON 57872P is a VS 2.5 Series remote reservoir rear shock pair designed for the 2025-2026 Toyota 4Runner. It provides 0 to 3 inches of rear lift adjustability and uses 2.5-inch diameter aluminum shock bodies with remote reservoirs for increased oil volume and heat dissipation compared to the OEM rear shock setup.
How much rear lift does the ICON 57872P provide?
The ICON 57872P provides up to 3 inches of rear lift height adjustability for the 2025-2026 4Runner. The actual lift achieved depends on the vehicle's rear suspension configuration, coil spring rate, and any additional components installed.
Does the ICON 57872P require new rear springs?
The 57872P shocks are separate from rear coil springs and are designed to be paired with ICON rear lift springs, specifically the ICON 52753 dual rate rear coil spring kit for the 2025-2026 4Runner. Using the 57872P with ICON rear springs creates a matched system that maximizes lift height and suspension travel.
What is the difference between the ICON 57872P and the ICON 56523?
The ICON 57872P is a VS 2.5 Series remote reservoir shock, offering 2.5-inch diameter shock bodies and remote reservoirs for higher oil volume and heat management. The ICON 56523 is a 2.0 VS IR (internal reservoir) shock at a lower price point. The 57872P is the premium option for off-road use or towing, while the 56523 is a strong upgrade for primarily on-road and light off-road driving.
Can I run the ICON 57872P without upgrading the front suspension?
Yes. The ICON 57872P can be installed as a standalone rear suspension upgrade without modifying the front. However, for the best ride quality, handling balance, and maximum lift, ICON recommends pairing the rear shocks with a front coilover kit (ICON 58692 or 58693) and rear lift springs (ICON 52753) to achieve a level stance and consistent suspension tuning front to rear.
Is the ICON 57872P rebuildable?
Yes. All ICON VS 2.5 Series shocks are fully rebuildable and revalveable. ICON offers rebuild kits and rebuild services to restore the shocks to factory specification or retune the valving for different applications over time.
Will the ICON 57872P fit all trims of the 2025-2026 4Runner?
The ICON 57872P is designed for the 2025-2026 Toyota 4Runner platform and fits the standard rear shock mounting points across the model lineup. Always confirm specific fitment with ICON if your 4Runner has factory-installed air suspension or other rear suspension modifications.
Is the ICON 57872P covered by warranty?
ICON Vehicle Dynamics backs its products with a limited lifetime warranty against defects in materials and workmanship for the original purchaser. Warranty claims are handled directly through ICON Vehicle Dynamics. Damage from improper installation, misuse, or modification outside ICON specifications is not covered.
Installation Instructions
- Safely raise and support the rear of the vehicle on jack stands. Remove the rear wheels to access the shock mounting points.
- Support the rear axle or suspension arms with a floor jack to prevent suspension drop when the shock is removed.
- Remove the upper and lower OEM rear shock mounting hardware and remove the OEM shock from the vehicle.
- Install the ICON 57872P shock in the same mounting positions and torque to ICON-specified values.
- Mount the remote reservoir to the provided bracket at a location away from heat sources and pinch points.
- If installing ICON rear coil springs (52753) at the same time, remove and replace rear springs per the factory service procedure before reinstalling the shocks.
- Reinstall wheels, lower the vehicle, and perform a full 4-wheel alignment after installation.
- Road-test and adjust damping settings as needed for your use case.
WARNING: This product can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and reproductive harm. For more information go to www.P65Warnings.ca.gov.
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