Fabtech 6in 4Link System with Coils & Stealth

2017–2021 Ford F250/F350 4WD Diesel

Part #: K2219M

Overview

The Fabtech 6-inch 4Link System with Coils & Stealth is a high-performance suspension upgrade designed specifically for the Ford F250 and F350 4WD Diesel models from 2017 to 2021. Built for enthusiasts seeking exceptional off-road capability, improved articulation, and a commanding stance, this system offers a comprehensive solution to elevate your truck's performance and durability. Whether you're tackling rugged trails or enhancing your vehicle's load-carrying capacity, this bolt-on kit provides the strength and flexibility needed for demanding applications.

Designed with precision and quality in mind, the 4Link System ensures your Super Duty maintains excellent wheel travel and articulation, allowing for better traction and stability on challenging terrain. The system's heavy-duty components and race-style uniballs deliver superior strength and durability, making it ideal for off-road enthusiasts, fleet operators, or anyone looking to upgrade their truck's suspension for both daily driving and extreme conditions.

Key Features

The Fabtech 4Link System incorporates advanced engineering and premium materials to deliver unmatched performance and reliability. Key features include:

• Heavy-wall 2-inch diameter links constructed from durable steel for maximum strength and longevity.
• Race-style 1-inch uniballs that provide superior articulation and reduce binding, ensuring smooth wheel movement over rough terrain.
• Thick 1/4-inch steel brackets that securely attach the links to the vehicle's frame without the need for cutting or welding, simplifying installation.
• Compatibility with Fabtech's replacement coil springs, allowing for customized ride height and load support.
• Sway bar drop brackets and a trac bar relocation bracket to maintain proper geometry and handling characteristics.
• Includes a new Pitman arm and rear block & u-bolt kit to complete the suspension overhaul.
• Stealth finish options for a clean, OEM-like appearance that resists corrosion and blends seamlessly with factory components.
• Designed for bolt-on installation, minimizing downtime and eliminating the need for cutting or welding.

Construction & Design

The Fabtech 4Link System is engineered with durability and performance at the forefront. The heavy-wall steel links are mandrel-bent and TIG-welded for precision and strength, ensuring they withstand the rigors of off-road driving and heavy loads. The race-style uniballs are sealed to prevent dirt and moisture ingress, maintaining smooth operation over time. The steel brackets are laser-cut and CNC-formed for perfect fitment, providing a secure attachment point that maintains proper suspension geometry. This thoughtful design enhances wheel travel, reduces binding, and improves overall ride quality, making your Super Duty more capable and confident in extreme conditions.

Performance & Sound

With this 4Link System installed, you can expect significant improvements in articulation and wheel travel, allowing your truck to navigate rough terrain with ease. The upgraded suspension provides a more controlled and stable ride, especially when off-road or carrying heavy loads. While specific horsepower or torque gains are not applicable, the system helps support increased load capacity and enhances overall vehicle handling. The design also contributes to a more aggressive stance, giving your truck a commanding presence on and off the road.

Installation & Fitment

The Fabtech 6-inch 4Link System is designed for straightforward bolt-on installation. All components are engineered to fit directly onto your Ford F250 or F350 4WD Diesel from 2017 to 2021, with no cutting, welding, or extensive modifications required. Basic hand tools and mechanical knowledge are sufficient for installation, and detailed instructions are included to guide you through the process. The system is engineered to retain factory ride quality while significantly enhancing off-road capability and suspension performance.

• Bolt-on installation with no cutting or welding required
• Compatible with factory and aftermarket coil springs
• Includes all necessary hardware and brackets for a complete upgrade

What's Included

• Heavy-wall 2-inch diameter links with race-style uniballs
• Steel brackets for frame mounting
• Replacement coil springs (if applicable)
• Sway bar drop brackets
• Trac bar relocation bracket
• Pitman arm
• Rear block and U-bolt kit
• Installation hardware and detailed instructions

Ideal For

This suspension system is perfect for off-road enthusiasts, fleet operators, and anyone looking to improve their Ford Super Duty's articulation, ride height, and load-carrying capacity. Whether you're tackling tough trails, hauling heavy loads, or simply want a more aggressive stance, this 4Link System provides the durability and performance needed for demanding applications.