Fabtech K2215DL

2017–2021 Ford F250/F350 4WD Diesel

Part #: K2215DL

Overview

The Fabtech 4" Radius Arm System with Coils & Dual Load Sensing Shocks is a comprehensive suspension upgrade designed specifically for Ford F250 and F350 trucks from 2017 to 2021. Built to enhance off-road capability, improve ride quality, and support increased ground clearance, this system is ideal for enthusiasts who demand durability and performance from their heavy-duty diesel trucks.

This kit features a patented radius arm design with a full tubular structure reinforced by dimple die side plates, ensuring maximum strength and longevity under demanding conditions. The adjustable alignment cam at the axle allows for precise caster adjustments, helping you achieve optimal alignment and handling characteristics. The front lift is achieved using 6-inch replacement coil springs, providing a significant lift height while maintaining a comfortable ride.

Key Features

Designed with performance and durability in mind, the Fabtech Radius Arm System offers several advanced features:

• Heavy-Duty Construction: The radius arms are constructed from full tubular steel with dimple die side plates, providing superior strength and resistance to bending or fatigue during off-road adventures.
• Adjustable Caster Alignment: The included adjustable cam at the axle allows for precise caster adjustments, ensuring proper alignment and steering response after installation.
• High-Quality Coil Springs: The 6-inch replacement coil springs are engineered to provide reliable lift and support, maintaining ride comfort and handling characteristics.
• Complete Suspension Components: The kit includes a Trac Bar relocation bracket, Pitman arm, sway bar drops, and a rear block & U-bolt kit, offering a full suspension upgrade for improved stability and off-road performance.
• Premium Shocks: The Dirt Logic front and rear shocks are included, featuring advanced damping technology to absorb impacts and provide a smooth ride on rough terrain.
• Country of Origin: Designed and manufactured with quality standards in mind, ensuring long-lasting performance.

Construction & Design

The Fabtech Radius Arm System is built with high-grade steel components, ensuring durability and strength under heavy loads and off-road conditions. The tubular radius arms are engineered for maximum rigidity, reducing flex and maintaining proper wheel alignment during aggressive driving. The dimple die side plates add extra reinforcement, while the adjustable cam at the axle allows for fine-tuning of caster angles, which is crucial for steering precision and tire wear.

The coil springs are designed to provide a reliable lift height of 6 inches, supporting larger tires and enhancing ground clearance. The inclusion of Dirt Logic shocks, known for their durability and superior damping, ensures that your truck handles well both on and off the pavement. The system's overall design emphasizes ease of installation, with bolt-on components that integrate seamlessly with your vehicle's existing suspension points.

Performance & Sound

This suspension upgrade significantly improves off-road capability, allowing your Ford F250/F350 to tackle challenging terrain with confidence. The increased ground clearance and reinforced components help support larger tires and off-road accessories. The Dirt Logic shocks provide excellent damping, reducing body roll and absorbing impacts for a smoother ride. While this system is primarily designed for off-road performance, it also enhances on-road stability and handling, making your truck more responsive and confident in various driving conditions.

Installation & Fitment

The Fabtech Radius Arm System is a bolt-on upgrade that is designed for straightforward installation with standard tools. No cutting, drilling, or welding is required, and all components are engineered to fit precisely onto your vehicle's factory mounting points. It is recommended to have a professional alignment performed after installation to ensure optimal handling and tire wear. The included components and detailed instructions make the installation process accessible for experienced DIY enthusiasts and professional installers alike.

• Complete bolt-on suspension lift kit for Ford F250/F350 4WD Diesel (2017-2021)
• Includes radius arms, coil springs, shocks, trac bar bracket, Pitman arm, sway bar drops, and rear block & U-bolt kit
• Designed for off-road enthusiasts seeking increased ground clearance, durability, and improved handling

What's Included

• Full set of tubular radius arms with dimple die reinforcement
• 6-inch replacement coil springs
• Front and rear Dirt Logic shocks
• Trac Bar relocation bracket
• Pitman arm
• Sway bar drop brackets
• Rear block and U-bolt kit
• Installation hardware and detailed instructions

Ideal For

• Off-road enthusiasts seeking maximum ground clearance and suspension durability
• Heavy-duty diesel truck owners wanting improved ride quality and handling
• Customizers looking for a reliable, high-performance suspension upgrade

Emissions Note

This suspension system is designed for off-road use and may not be street-legal in all areas. Please check local regulations before installation. This kit is not CARB-compliant and is intended for off-road or show use only.