4.5 Inch Lift Kit
Radius Arm · Diesel · M1 · Ford F-250/F-350 Super Duty (23-26)
$1,739.95the kit
ETA 09/25/2026 · as of Sep 19
Tell us your truck and we'll check this kit against it.
Nothing is charged online. We confirm fitment and the final price on the call.
Before you buy
Due to variances in motor weight, this kit does NOT fit models equipped with a gas engine. Does NOT ft models equipped with Tremor Off-Road Package as they are equipped with approximately a 1.5-inch factory lift. Does NOT fit dually models.
About this kit
Level Up Your Super Duty Stance: Give your fifth-generation Ford F-250/F-350 Super Duty the aggressive lift it deserves with Rough Country's 4.5" Suspension Lift Kit. This premium kit eliminates factory rake, delivers front-to-rear leveling, and increases ground clearance, resulting in a bold, commanding presence on and off the road.
Highlights
- Simple Bolt-On Installation: No cutting or drilling required for a hassle-free setup.
- Boosted Ground Clearance: Conquer off-road obstacles with ease and gain a more aggressive stance.
- Front-to-Rear Leveling: Eliminates factory rake for a clean, leveled look and improved balance.
- Tubular Radius Arms: Engineered for strength and performance with a 2" outer diameter design.
- Factory-Mount Compatible: Precision-fit to bolt directly into OEM mounts for hassle-free installation.
- Improved Geometry: Designed to maintain a more factory-like suspension angle.
- Heavy-Duty Construction: Oversized arms offer superior strength compared to stock components.
- Durable Rubber Bushings: Reduce noise and absorb vibrations for a smoother ride.
- Heavy-Duty Fabricated Blocks: Stronger and longer-lasting than standard cast blocks for maximum durability.
- Anti-Axle Wrap Rear Blocks: Maintain factory ride quality while eliminating common lift block issues.
- Configurable Shock Options: Choose from our nitrogen-charged N3 or V2 Monotube shocks, the power to customize your ride is in your hands!
Read the full description
Strength Meets Precision with Tubular Radius Arms: Ditch the weak factory setup. This kit features high-clearance tubular radius arms with a beefy 2-inch outer diameter design engineered for superior strength, durability, and optimized suspension geometry. These arms bolt directly into factory mounts for a straightforward, secure installation without the need for drop brackets.
Engineered for Ride Quality: Lifted front coil springs raise your stance while maintaining a smooth, controlled ride. Designed to preserve factory-like angles, this system includes sway bar drop brackets and a track bar relocation bracket to ensure proper geometry and predictable handling across any terrain.
Durability Where It Counts: Heavy-duty fabricated rear blocks outperform standard cast blocks with enhanced strength and longevity. Anti-axle wrap blocks help eliminate unwanted movement under torque, preserving your factory ride quality even under load.
Customize Your Ride Performance: Dial in your preferred ride feel with configurable shock options. Go with Rough Country's nitrogen-charged N3 shocks for balanced on-road comfort and trail performance, or upgrade to V2 Monotube shocks for premium responsiveness and heat dissipation during demanding off-road conditions.
Quick, Bolt-On Installation: No cutting, no drilling, just a simple bolt-on setup that gets you back on the road fast. This kit clears up to a 35" tire with proper wheel backspacing, unlocking your ideal stance without the headache.
Rough Country Has You Covered: Every Rough Country 4.5" Suspension Lift Kit is backed by our Limited Lifetime Warranty, lift confidently and drive boldly.
What's in the box
- 1 × 2023-2024 Ford F250/F350 Diesel Front 4.5" Coil Part #9466
- 1 × 4.5 In Block U-Bolt Kit | Ford Super Duty (23-24) Part #400130991
- 1 × Kit Box | 4.5 -6" Radius Arm Kit | Ford Super Duty (2023) Part #400330991
- 1 × Radius Arm Pass Upgrade Box | Ford F-250/F-350 Super Duty 4WD (2023-2024) Part #43701991A
- 1 × Radius Arm Dr Upgrade Box | Ford F-250/F-350 Super Duty 4WD (2023-2024) Part #43701992A
- 1 × M1 MONOTUBE SHOCK PAIR Part #770818P
- 1 × M1 MONOTUBE SHOCK PAIR Part #770805P
Specifications
| Brand | Rough Country |
|---|---|
| Part number | 400340 |
| UPC | 840269979958 |
| Lift | 4.5″ |
| Shipping weight | 234.2 lb |
| Country of origin | USA |
| Shipping | Ground shipping only · Arrives in more than one box |
Trucks it fits
| Truck | Years | Drive | Trims |
|---|---|---|---|
| Ford F-250 Super Duty | 2023–2026 | 4WD | King Ranch, Lariat, Platinum, XL, XLT |
| Ford F-250 Super Duty | 2023–2024 | 4WD | Limited |
| Ford F-350 Super Duty | 2023–2026 | 4WD | King Ranch, Lariat, Platinum, XL, XLT |
| Ford F-350 Super Duty | 2023–2024 | 4WD | Limited |