ICON Stage 1 Suspension System | 2021-2025 Ford F-150 2WD/4WD | 3.5 in Lift | K93131T
Good to know before you buy
Fits
- 2021-2025 Ford F-150 2WD/4WD
Does not fit: Raptor, Tremor, Lightning
From ICON
This system features upper control arms with ICON's patented Delta Joint PRO. Delta Joint PRO is ICON's innovative new suspension articulation joint which combines the durability and longevity of factory style ball joints with performance and strength that exceeds traditional motorsports-style ball joints. The Delta Joint PRO features a new rebuildable, serviceable design in which any component may be removed, inspected, and replaced without having to purchase a whole new joint. Strength and durability are improved by using a larger ball with 56% more bearing surface than our standard Delta Joint, along with improved lubrication sealing. But improved performance is at the heart of the Delta Joint PRO, with a full 90 degrees of articulation, from one extreme to the other. This represents a 14% improvement in range of motion, over the highly capable original Delta Joint, allowing for maximum bind-free suspension movement through the complete range of travel. The Delta Joint PRO is built to take the abuse, with a chromoly ball and shaft that has a bearing surface hardened to Rockwell C 55. The replaceable races are made of graphite-impregnated sintered metal, machined to the finest tolerance to provide a flawless, metal-to-metal bearing interface. We also redesigned the lubrication system, with lubricant channels that distribute grease more efficiently without extending past the bearing seal.
Why this Stage 1 Suspension System
An ICON suspension system is a matched package: ICON tunes every component in the box for the 2021-2025 Ford F-150 together, so lift height, spring rate and damping arrive as one calibrated setup instead of parts collected from three brands. Higher Stage numbers add components (upper control arms, rear shocks, leaf or coil springs, adjusters) on the same base system.
At a glance
| Position | Front & Rear |
|---|---|
| Lift | 3.5 in Lift |
| Rebuildable | Yes, ICON factory shock service available |
| Warranty | Lifetime on components, springs and weldments; 12 months against manufacturing defects (shocks and coilovers) |
| Installation | Professional installation required by ICON |
| Availability | Stocked at the distributor, ships in 1-3 business days |
Before you order
- Alignment required after installation
- ICON requires installation by a professional shop; failures from improper installation are not covered
- Manufacturer part number K93131T. Designed and built by ICON Vehicle Dynamics in Riverside, California.
Questions
IR, RR, PB: what is the difference?
IR is an internal reservoir, a self-contained monotube body. RR is a remote reservoir connected by hose and PB is a piggyback reservoir bolted to the body; both add oil volume and cooling so damping stays consistent on long rough sections. IR is lighter and simpler; RR and PB resist fade.
CDCV, CDEV, CDXS: which adjuster?
CDCV is a 10-position manual compression knob. CDEV is an electronic compression valve controlled by the ICON Intelligent Control module and phone app, which reads speed and terrain and adjusts on the fly; it requires the IIC install kit. CDXS is a manual dual-circuit adjuster with 10 marked detents each for compression and rebound. Shocks without a code run ICON's fixed vehicle-specific valving.
Can these be serviced?
Yes. Every ICON shock and coilover is rebuildable and revalveable through ICON factory shock service. The shock warranty is 12 months against manufacturing defects.
What does the Stage number mean?
Stage 1 is the base system for this truck and each higher Stage adds components on top of it: upper control arms, rear shocks or springs, adjusters. The exact contents vary by platform and are listed in ICON's description above.
Do I need an alignment?
Yes. Any change to front ride height requires a four-wheel alignment after installation.
Who installs it?
ICON requires professional installation and does not cover failures caused by improper installation. Plan on a shop with a lift and an alignment rack for anything that changes ride height.
ICON shock lines
| Line | Reservoir | Adjuster | Best for |
|---|---|---|---|
| 2.0 Aluminum Series | IR or RR | Fixed VS valving | Stock to moderate lift, daily driving |
| 2.5 Series VS | IR, RR or PB | None, CDCV, CDEV or CDXS | Lifted trucks driven off-road |
| 3.0 Series VS | RR | CDCV, CDEV or CDXS | Heavy trucks and high-speed off-road |
| 3.0 Zeta RXT | Bypass | External bypass tubes | Raptor rear, desert use |
About ICON Vehicle Dynamics
ICON designs and builds its shocks, coilovers, control arms and suspension systems in Riverside, California, with a lifetime warranty on components, springs and weldments and 12 months on shocks. Hannah Suspension ships genuine ICON parts through an authorized distributor with full factory warranty.