Fabtech Sport Suspension System

2018–2021 Jeep Wrangler 6-Cyl 4-Door Models

K4107DL

Overview:

The Fabtech 3-inch Sport System with Dirt Logic shocks is engineered specifically for Jeep Wrangler models from 2018 to 2021, including the Islander, Rubicon, Sport, Sport S, Unlimited Rubicon, Unlimited Sahara, Unlimited Sport, and Unlimited Sport S trims. Designed for enthusiasts seeking enhanced off-road capability without sacrificing on-road comfort, this suspension system delivers a balanced lift that improves ground clearance and suspension travel while maintaining a smooth highway ride.

Featuring American-made dual rate coil springs and premium Dirt Logic 2.25 shocks, the system is ideal for Jeep owners who demand reliable performance on rugged trails and stable handling on pavement. It supports tire sizes up to 37 inches with minor trimming or cutting depending on fender style, making it a versatile upgrade for a variety of wheel and tire setups.

Key Features:

This Sport Suspension System combines advanced engineering with durable components to enhance your Jeep’s capability and ride quality. Key features include:

• Dual rate coil springs with a corner-specific design for the JL Wrangler, providing a soft initial ride and firm support under load
• American-made coil springs designed for long suspension travel and smooth highway performance
• Four bump stop extensions that utilize factory bump stops to cushion full compression while preventing over-cycling of suspension and driveline
• Extended front and rear sway bar links with urethane bushings to maintain proper sway bar geometry and prevent binding at full extension
• Heavy-duty rear track bar bracket that re-centers the axle and retains the factory roll center with increased ride height
• Includes Dirt Logic 2.25 front and rear shocks optimized for off-road performance and daily driving
• Supports a wide range of tire and wheel sizes with standard or high clearance fenders, accommodating up to 37-inch tires with minor trimming or cutting
• Designed exclusively for 6-cylinder, 4-door Jeep Wrangler models from 2018 to 2021

Construction & Design:

The Fabtech Sport System is built with high-quality materials and precision engineering to ensure durability and performance. The dual rate coil springs are manufactured in the USA and tailored specifically for the JL chassis, ensuring proper vehicle balance and ride height. The bump stop extensions and sway bar links are designed to integrate seamlessly with factory components, preserving suspension geometry and driveline integrity.

Heavy-duty brackets and urethane bushings enhance strength and reduce wear, while the Dirt Logic shocks are tuned to provide consistent damping across varied terrain. This thoughtful design results in a suspension system that is rugged enough for off-road adventures yet refined enough for everyday driving.

Installation & Fitment:

Installation of the Fabtech 3-inch Sport System is straightforward for experienced mechanics and professional installers. The system is engineered to work with factory bump stops and suspension components, minimizing the need for extensive modifications. Minor trimming or cutting of fenders may be required depending on tire and wheel combinations, especially when using high clearance fenders with larger tires.

This kit fits 2018 to 2021 Jeep Wrangler models equipped with 6-cylinder engines and 4-door configurations. It is compatible with standard and high clearance fender options, supporting a variety of tire sizes from 325/60R20 up to 37/12.5R20.

What's Included:

• Dual rate coil springs, corner-specific for Jeep JL
• Front and rear Dirt Logic 2.25 shocks
• Four bump stop extensions
• Extended front and rear sway bar links with urethane bushings
• Heavy-duty rear track bar bracket
• Installation hardware and spacers for 3-inch lift

Ideal For:

This Fabtech Sport Suspension System is perfect for Jeep Wrangler owners who want a reliable 3-inch lift that enhances off-road capability without compromising daily drivability. It suits enthusiasts who run 6-cylinder, 4-door Wranglers and desire a balanced suspension upgrade that supports larger tires and improved suspension travel while maintaining factory-like ride quality on highways and city streets.

Fabtech is an off-road suspension leader producing lift kits, shocks, and related components to increase ride height, clear larger tires, and improve capability. Their systems are engineered for specific trucks and SUVs, blending on-road drivability with the added travel and strength enthusiasts want for trails, desert runs, and overland builds.