ICON K65913RL 4.5" Lift Stage 4 Suspension System Kit w/ Radius Arms & Radius Arms (Gas) | 2023-2025 Ford F250/F350 Super Duty

Features:

• Fits 2023–2025 F-250/F-350 gas 4WD
• 4.5" front lift with dual rate coils
• 2" rear lift using expansion packs
• 2.5 remote reservoir shocks front and rear
• Remote reservoirs reduce heat and shock fade
• Radius arms add strength and ground clearance
• Built-in caster cams allow easy alignment
• 50% more front wheel travel than stock
• Adjustable track bar fine-tunes axle alignment
• Dual steering stabilizers improve control with big tires
• Expansion packs improve ride and reduce axle wrap
• Shocks are fully rebuildable and tunable
• Backed by ICON’s lifetime component warranty

Transform Your Truck Into A Confident Performer

If you want your Super Duty to look the part and back it up with serious performance, the ICON Stage 4 Suspension System with Radius Arms and Expansion Packs is built to deliver. Designed for 2023–2025 F-250 and F-350 gas models, this system gives your truck 4.5 inches of front lift and 2 inches of rear lift, creating the clearance and stance needed for aggressive wheel and tire setups. The expansion packs in the rear provide a smoother ride and cut down on axle wrap, which makes a big difference when towing or carrying heavy gear. Fabricated radius arms add major strength and eliminate the need for drop brackets, so your truck gains clearance instead of losing it. The included dual steering stabilizers tighten up control, especially when oversized tires are in play, giving you more confidence behind the wheel. Add in ICON’s 2.5 remote reservoir shocks that keep things cool and controlled on long drives or off-road trails, and you’ve got a kit that takes your truck well beyond stock capability. This is more than a lift, it’s a complete suspension upgrade built for drivers who demand more from their trucks.

Suspension Engineering That Balances Comfort And Strength

The ICON K65913RL Stage 4 System combines precision tuning with rugged components to create a suspension that thrives in both daily driving and demanding off-road use. At the heart of the kit are dual rate coil springs that provide a smooth initial response over small bumps and firmer support during deeper compression. The 2.5 Aluminum Series shocks with remote reservoirs increase oil volume and heat dissipation, ensuring consistent performance during extended towing or rough terrain driving. Fabricated radius arms replace the weaker factory arms, offering built-in caster adjustment, improved steering lock clearance, and increased durability. The adjustable track bar helps fine-tune axle alignment while reducing bump steer, making the truck feel more predictable in real-world conditions. Rear lift comes from expansion packs rather than simple blocks, which improves compliance and keeps axle wrap under control. Supporting parts like stainless steel brake lines, sway bar drop brackets, and bump stop spacers round out the package. Every component works together as part of a complete system, tested and tuned specifically for gas-powered Super Duty trucks.

Fits: 2023, 2024, 2025 Ford F250/F350 Super Duty

Notes:

• Fits 2023–2025 F-250/F-350 4WD gas trucks only.
• Not compatible with diesel, dually, or Tremor models.
• Provides 4.5" front and 2" rear lift height.
• Expansion packs improve ride quality and reduce axle wrap.
• Fabricated radius arms eliminate need for drop brackets.
• Built-in caster cams allow on-vehicle alignment adjustment.
• Adjustable track bar improves axle centering and handling.
• Dual steering stabilizers recommended for larger tires.
• Remote reservoir shocks require space for proper mounting.
• Factory wheels may require spacers with bigger tires.
• Some trimming may be needed for oversized tire setups.
• Professional alignment required after installation.
• System tuned specifically for gas engine weight balance.
• All components are bolt-on, no cutting or welding required.
• Backed by ICON’s lifetime warranty on springs and fabricated parts.