Fabtech Sport Suspension System

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

K4106

Overview:

The Fabtech 3-inch Sport System with Shock Extensions is engineered specifically for Jeep Wrangler models from 2018 to 2021, including Rubicon, Sport, Sport S, Sahara, and Unlimited variants equipped with 6-cylinder engines. This suspension upgrade delivers a balanced combination of off-road capability and on-road comfort, making it ideal for enthusiasts seeking enhanced suspension travel without sacrificing daily drivability. Designed to accommodate larger tires and improve articulation, the system maintains vehicle stability and ride quality across diverse terrains.

Featuring American-made dual rate coil springs, this Sport System is tailored to provide a smooth highway ride while offering long-travel suspension performance for off-road adventures. The system’s components work together to optimize suspension geometry and handling, ensuring your Jeep remains level and controlled under load and during aggressive driving.

Key Features:

The Fabtech Sport System incorporates advanced suspension technology and durable components to enhance your Jeep Wrangler’s performance and reliability:

• Dual rate coil springs designed for long travel suspension and smooth highway comfort
• Corner-specific springs for the JL chassis to maintain side-to-side vehicle balance
• Four bump stop extensions that utilize factory bump stops for compliant cushioning at full compression
• Extended front and rear sway bar links with urethane bushings to prevent bind and maintain factory sway bar operation
• Heavy-duty rear track bar bracket to re-center the axle and preserve the factory roll center with increased ride height
• Compatible with a wide range of tire sizes up to 37-inch diameter, depending on fender configuration
• Designed for 4-door Jeep Wrangler models with standard or high clearance fenders
• Maintains stock down travel to prevent over-cycling of suspension and driveline components

Construction & Design:

Fabtech’s Sport System is built with precision-engineered components crafted from high-quality materials to withstand the rigors of off-road use. The coil springs are manufactured in the USA with a dual rate design that balances comfort and load capacity. The bump stop extensions and sway bar links are designed to integrate seamlessly with factory parts, preserving the Jeep’s original suspension geometry and handling characteristics.

The heavy-duty rear track bar bracket is engineered to maintain the vehicle’s roll center, ensuring predictable handling and stability even with the increased ride height. All components are corrosion-resistant and built for durability, providing long-lasting performance in harsh environments.

Installation & Fitment:

This Fabtech Sport System is designed for straightforward installation on 2018 to 2021 Jeep Wrangler 4-door models equipped with 6-cylinder engines. Minor trimming or cutting of fenders may be required depending on tire and wheel size as well as fender type (standard or high clearance). The system supports tire sizes ranging from 325/60R18 up to 37/12.5R20 with appropriate wheel offsets.

Installation retains factory bump stops and suspension travel limits to protect driveline components and ensure reliable operation. Professional installation is recommended to ensure proper alignment and suspension geometry.

What's Included:

• Dual rate coil springs (corner-specific for JL chassis)
• Shock extensions for increased suspension travel
• Four bump stop extensions compatible with factory bump stops
• Extended front and rear sway bar links with urethane bushings
• Heavy-duty rear track bar bracket
• All necessary hardware for installation

Ideal For:

This suspension system is ideal for Jeep Wrangler owners who want to upgrade their vehicle for enhanced off-road capability while maintaining excellent on-road comfort. It suits enthusiasts who run larger tires and require increased suspension travel without compromising ride quality or vehicle stability. Perfect for trail riders, weekend adventurers, and daily drivers seeking a versatile suspension solution tailored to the JL platform.

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.