Fabtech Sport System Suspension Lift

2018–2021 Jeep Wrangler (JL) 6-Cylinder Models

K4108DL

Overview:

The Fabtech 3-inch Sport System is a premium suspension lift kit engineered specifically for Jeep Wrangler models from 2018 to 2021, including Rubicon, Sport, Sport S, Sahara, and Unlimited variants with 6-cylinder engines. Designed to enhance off-road capability without sacrificing on-road comfort, this system features American-made dual rate coil springs that provide a smooth highway ride while allowing for extended suspension travel during rugged off-road use.

Ideal for Jeep enthusiasts seeking a balanced lift solution, the Sport System improves ground clearance and suspension articulation while maintaining vehicle stability and drivability. It supports larger tires up to 37 inches with minor trimming or cutting depending on fender type, making it a versatile upgrade for both daily driving and trail adventures.

Key Features:

This suspension lift kit incorporates advanced engineering to optimize performance and durability:

• Dual rate coil springs with a two-stage design for soft initial travel and firm support under load
• Corner-specific springs to maintain side-to-side vehicle level and maximize suspension travel
• Four bump stop extensions that utilize factory bump stops to prevent over-compression and driveline stress
• Extended front and rear sway bar links with urethane bushings to prevent sway bar bind at full suspension extension
• Heavy-duty rear track bar bracket to re-center the axle and preserve factory roll center geometry
• Includes front and rear Dirt Logic reservoir shocks with spacers for improved damping and ride quality
• Compatible with standard and high clearance fenders, supporting tire sizes from 325/60R20 up to 37/12.5R20
• Designed for 17x9 to 20x9 wheels with appropriate backspacing and minor trimming or cutting as needed

Construction & Design:

Fabtech’s Sport System is built with high-quality American-made coil springs featuring a dual rate design that balances comfort and capability. The springs are engineered to provide a progressive response, softening initial suspension movement while stiffening under heavier loads or impacts. This design ensures a smooth ride on pavement and robust performance off-road.

All components, including bump stop extensions, sway bar links, and the rear track bar bracket, are precision-engineered to maintain factory suspension geometry and driveline angles. The use of urethane bushings enhances durability and reduces unwanted movement, while the Dirt Logic reservoir shocks deliver consistent damping performance across varied terrain.

Installation & Fitment:

The Fabtech Sport System is designed for straightforward installation on 2018–2021 Jeep Wrangler JL models equipped with 6-cylinder engines. It fits both 2-door and 4-door configurations, including Rubicon, Sport, Sport S, Sahara, and Unlimited trims. Minor trimming or cutting of fenders may be required depending on tire and wheel size as well as fender type (standard or high clearance).

Installation retains factory bump stops and suspension travel limits to prevent over-extension and driveline damage. Extended sway bar links and a heavy-duty rear track bar bracket ensure proper alignment and handling characteristics are maintained with the increased ride height.

What's Included:

• Dual rate coil springs (corner-specific for JL Wrangler)
• Front and rear Dirt Logic reservoir shocks with spacers
• Four bump stop extensions utilizing 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 lift kit is perfect for Jeep Wrangler owners who want a reliable 3-inch lift that enhances off-road suspension travel and ground clearance without compromising daily driving comfort. It suits enthusiasts who run tires up to 37 inches and require a suspension system that handles payload and high-speed impacts effectively. Whether tackling trails, rocks, or highway cruising, the Fabtech Sport System delivers balanced performance and durability.

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.