Skyjacker Front Coil Springs

2007–2018 Jeep Wrangler

Part #: JKU40FDR

Overview

The Skyjacker 4-inch Long Travel Front Coil Springs are engineered specifically for the 2007–2018 Jeep Wrangler, delivering a substantial lift while maintaining exceptional ride quality and articulation. Designed for off-road enthusiasts who demand enhanced suspension performance without sacrificing comfort, these dual rate coil springs provide a balanced lift that improves ground clearance and wheel travel. Whether tackling rugged trails or daily driving, these springs offer a reliable upgrade that enhances your Jeep’s capability and stance.

Built to match OEM spring rates, these coil springs ensure your Wrangler retains its factory-like ride comfort while offering the benefits of a 4-inch lift. They are ideal for Jeep owners looking to improve suspension articulation and durability for off-road adventures, all backed by Skyjacker’s lifetime warranty for long-term peace of mind.

Key Features

Skyjacker’s front coil springs combine advanced materials and design to deliver superior performance and durability. Key features include:

• 4-inch lift height for improved ground clearance and off-road capability
• Dual rate coil design enhances articulation and ride comfort
• Constructed from high-strength alloy to resist sagging and fractures
• Durable powder-coated finish protects against corrosion and wear
• Matched to OEM spring rates to maintain factory ride quality
• Coils securely held in place at full droop to prevent misalignment
• Designed specifically for 2007–2018 Jeep Wrangler models
• Lifetime warranty ensures long-lasting reliability and customer confidence

Construction & Design

These Skyjacker coil springs are crafted from a higher strength alloy that offers superior resistance to sagging and fractures compared to standard springs. The dual rate design provides a progressive spring rate that balances comfort and performance, allowing the suspension to absorb rough terrain while maintaining control and stability. Each spring is finished with a durable powder coating that protects against rust and environmental damage, ensuring longevity even in harsh off-road conditions.

The engineering behind these springs focuses on maintaining OEM spring rates, which helps preserve the Wrangler’s original handling characteristics and ride comfort. Additionally, the coil springs are designed to keep the coils securely in place at full droop, preventing coil misalignment and ensuring consistent suspension performance throughout the lift range.

Installation & Fitment

Installation of the Skyjacker 4-inch Long Travel Front Coil Springs is straightforward for experienced mechanics and off-road enthusiasts familiar with suspension upgrades. These springs are designed as a direct fit for 2007–2018 Jeep Wrangler models, requiring no major modifications to the vehicle’s suspension components. Proper installation will restore suspension geometry and provide the intended lift and articulation benefits.

For optimal results, it is recommended to have the springs installed by a professional or with the appropriate tools and knowledge of Jeep suspension systems. After installation, a wheel alignment is advised to ensure proper handling and tire wear.

What’s Included

• One pair of Skyjacker 4-inch Long Travel Front Coil Springs
• Installation instructions
• Lifetime warranty documentation

Ideal For

These coil springs are perfect for Jeep Wrangler owners who want to enhance their vehicle’s off-road performance with a reliable 4-inch lift. They suit enthusiasts who require improved suspension articulation and ground clearance for trail riding, rock crawling, or overlanding, while still maintaining a comfortable ride for everyday driving. The springs are also ideal for those seeking a durable, long-lasting suspension upgrade backed by a trusted brand and warranty.

Skyjacker is a long-running off-road suspension brand offering lift kits, shocks, steering stabilizers, and related components for trucks, SUVs, and Jeeps. Built to increase clearance for larger tires and improve trail capability, Skyjacker systems are popular for enthusiasts who want a tougher stance and more off-road confidence with proven application coverage.