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3.0 Series Remote Reservoir Rear Coilover Pair for 2017-2026 Ford F-250 and F-350
The ICO61804EP ICON Vehicle Dynamics 3.0 Series VS Remote Reservoir CDEV rear coilover pair delivers adjustable damping for 2017 through 2026 Ford F-250 and F-350 Super Duty 4WD trucks. Designed for 0 to 3 inches of rear lift over stock, the ICO61804EP replaces factory rear shocks with a monotube remote reservoir unit offering improved heat dissipation, fade resistance, and driver-controlled compression damping via the CDEV Valve. The 3.0 Series body diameter delivers 50% more piston surface area compared to 2.5 Series shocks.
Key Features
- 3.0 inch body diameter for 50% greater piston surface area versus 2.5 Series shocks
- CDEV Valve allows in-vehicle compression damping adjustment without tools
- Nitrogen-charged monotube design with remote reservoir for maximum heat dissipation
- Compatible with 0 to 3 inches of rear lift over stock on 2017-2026 F-250 and F-350 4WD
- Premium 5WT shock oil maintains consistent damping across temperature ranges
- 7/8 inch induction hardened, chrome-plated shock shaft
- 100% rebuildable and 100% revalveable for long service life
- Cerakoted steel cylinder for corrosion resistance
Fitment
| Year Range | Make | Model |
|---|---|---|
| 2017-2026 | Ford | F-250 Super Duty |
| 2017-2026 | Ford | F-350 Super Duty |
Specifications
| Detail | Value |
|---|---|
| MPN | ICO61804EP |
| ICON Part Number | 61804EP |
| UPC | Not published by manufacturer |
| Series | 3.0 VS Remote Reservoir CDEV |
| Position | Rear pair |
| Lift range | 0-3 inches rear |
| Body diameter | 3.0 inch |
| Damping adjustment | CDEV (in-vehicle compression damping) |
| Design | Monotube, nitrogen charged |
| Shaft | 7/8 inch induction hardened chrome-plated |
| Oil | Premium 5WT |
| Fitment requirement | 4WD models only |
| Warranty | ICON Vehicle Dynamics limited warranty |
What's Included
- ICO61804EP ICON 3.0 Series VS RR CDEV rear shock pair (left and right)
- CDEV adjustment hardware
- ICON installation documentation
About ICON Vehicle Dynamics
ICON Vehicle Dynamics is a California-based suspension manufacturer specializing in high-performance shock absorbers, coilover systems, and upper control arms for truck and SUV platforms. All ICON shocks are engineered and valved in-house, and every unit is fully rebuildable and revalveable by ICON's service team.
Frequently Asked Questions
What is the ICO61804EP?
The ICO61804EP is an ICON Vehicle Dynamics 3.0 Series VS Remote Reservoir CDEV rear coilover shock pair for 2017 through 2026 Ford F-250 and F-350 Super Duty 4WD trucks. It supports 0 to 3 inches of rear lift and features in-vehicle CDEV compression damping adjustment.
What does CDEV mean on ICON shocks?
CDEV stands for Compression Damping External Valve. It allows the driver to adjust compression damping from inside the vehicle without tools, enabling quick tuning between a softer daily ride and stiffer off-road settings.
How does ICO61804EP differ from ICO61804CP?
The ICO61804EP fits 2017-2026 F-250/F-350. The ICO61804CP covers 2005-2026. Both are 3.0 Series VS RR rear pairs. Confirm your model year before ordering.
Will this fit both gas and diesel Super Duty models?
Yes. Compatible with both gas and diesel 2017-2026 F-250 and F-350 Super Duty 4WD models. Does not fit Cab and Chassis models.
Why choose 3.0 Series over 2.5 Series shocks?
The 3.0 Series provides 50% more piston surface area and greater internal oil volume, improving damping stability and heat capacity under prolonged hard use such as towing or off-road driving.
Is ADAS recalibration required after installation?
Yes on ADAS-equipped trucks. Schedule recalibration at a dealer or ADAS-certified shop after installation.
Can this be used with a front coilover lift kit?
Yes. These rear shocks pair well with ICON front coilover conversion kits and support 0 to 3 inches of rear lift over stock.
Are the shocks rebuildable?
Yes. All ICON 3.0 Series shocks are 100% rebuildable and 100% revalveable by ICON's service team.
Installation Overview
- Safely raise and support the vehicle on rated jack stands
- Remove factory rear shock lower mount bolt and upper mount nut
- Remove the factory shock from the vehicle
- Position ICO61804EP in the factory shock location
- Install mounting hardware and torque to ICON specifications
- Connect the remote reservoir and route hose away from heat and moving parts
- Repeat on opposite side
- Lower vehicle and perform an initial bounce test before driving
- If ADAS-equipped, schedule recalibration before returning to daily use
WARNING: This product can expose you to chemicals including Nickel, known to the State of California to cause cancer. For more information go to www.p65warnings.ca.gov.
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