SuperPro Coil Spring Upper Bush Kit

2018–2023 Jeep Wrangler / 2020–2023 Jeep Gladiator

SPF5579K

Overview:

The SuperPro Coil Spring Upper Bush Kit is engineered to provide superior durability and consistent suspension performance for Jeep Wrangler and Gladiator models from 2018 through 2023. Designed to replace the factory rubber insulators, this kit utilizes advanced polyurethane compounds that resist degradation, sagging, and softening over time. Ideal for off-road enthusiasts and daily drivers alike, these coil spring insulators ensure proper spring location and retention, maintaining your vehicle’s suspension geometry and ride quality throughout its lifespan.

Whether you’re tackling rugged trails or cruising on pavement, this kit delivers a reliable and permanent suspension solution that enhances handling stability and comfort without the need for frequent replacements.

Key Features:

SuperPro’s Coil Spring Upper Bush Kit offers a range of benefits that improve suspension reliability and vehicle performance:

• Manufactured from high-quality polyurethane for superior durability compared to traditional rubber insulators
• Prevents coil spring sag and maintains consistent spring positioning under all driving conditions
• Resistant to oil, chemicals, and environmental contaminants, ensuring long-lasting performance
• Custom-engineered to fit Jeep Wrangler (2018–2023) and Jeep Gladiator (2020–2023) models precisely
• Improves suspension response and handling stability by reducing unwanted movement
• Easy to install with no modifications required, compatible with stock and lifted suspensions
• Maintains ride height and suspension geometry for enhanced vehicle control
• Reduces noise, vibration, and harshness (NVH) for a smoother driving experience

Construction & Design:

SuperPro utilizes proprietary polyurethane compounds that outperform conventional rubber in both strength and longevity. These materials are engineered to resist cracking, tearing, and deformation caused by heat, UV exposure, and mechanical stress. The coil spring upper bushes are precision-molded to exact OEM specifications, ensuring a perfect fit and optimal spring retention. This robust construction guarantees that the suspension components remain securely in place, preserving the integrity of your Jeep’s ride and handling characteristics over time.

Installation & Fitment:

The SuperPro Coil Spring Upper Bush Kit is designed for direct replacement of the factory coil spring insulators on Jeep Wrangler models from 2018 to 2023 and Jeep Gladiator models from 2020 to 2023. Installation is straightforward and can typically be completed with basic hand tools. No special modifications or additional parts are required, making it an ideal upgrade for both professional mechanics and DIY enthusiasts. Proper installation ensures the coil springs are correctly located and retained, preventing premature wear and suspension issues.

What's Included:

• Set of polyurethane coil spring upper bushes tailored for Jeep Wrangler and Gladiator applications
• Installation instructions

Ideal For:

This coil spring upper bush kit is perfect for Jeep owners seeking a durable, long-lasting suspension upgrade that maintains factory ride quality and handling precision. It is especially beneficial for off-road drivers who demand reliable suspension performance under harsh conditions, as well as daily drivers looking to prevent sagging and softening of their coil springs over time. The kit suits both stock and lifted suspension setups, making it a versatile choice for a wide range of Jeep Wrangler and Gladiator configurations.

SuperPro is an Australian suspension specialist known for high-performance polyurethane bushings, control arms, and sway bar components designed for both 4x4 and performance vehicles. Their parts are built to sharpen handling and improve durability compared with worn factory rubber, making them a common upgrade for enthusiasts chasing tighter response and longer-lasting suspension control.