Superlift Radius Arms Component Box

2013–2024 Ram 2500/3500 5.7L Hemi, 6.4L 392, 6.7L Diesel

Part #: 4685

Overview

The Superlift 4-inch Lift Kit Replacement Radius Arms Component Box is engineered specifically for Ram 2500 and 3500 models from 2013 through 2024, compatible with 5.7L Hemi, 6.4L 392, and 6.7L Diesel engines. Designed to complement Superlift’s 4-inch suspension lift kits, these radius arms provide enhanced control and stability for lifted trucks, ensuring optimal suspension geometry and improved handling both on and off the road.

Built by enthusiasts for enthusiasts, Superlift’s radius arms are ideal for truck owners seeking reliable, high-quality components that maintain factory-level durability while accommodating increased ride height. Whether you’re tackling rugged trails or cruising highways, these radius arms deliver consistent performance and peace of mind.

Key Features

Superlift radius arms are crafted with precision and durability in mind, offering the following key benefits:

• Designed specifically for 4-inch lift kits on Ram 2500/3500 trucks (2013–2024)
• Compatible with multiple engine options including 5.7L Hemi, 6.4L 392, and 6.7L Diesel
• Restores proper suspension geometry after lift installation for improved handling
• Heavy-duty construction to withstand off-road abuse and daily driving demands
• Precision-engineered bushings for reduced noise and vibration
• Corrosion-resistant finish for long-lasting durability in harsh environments
• Direct replacement for factory radius arms, ensuring straightforward installation
• Enhances vehicle stability and steering response at lifted ride heights

Construction & Design

Superlift radius arms are manufactured from high-strength steel, providing exceptional rigidity and resistance to bending or flexing under load. The design incorporates reinforced mounting points and premium-grade bushings to absorb road shock and minimize drivetrain stress. Each component undergoes rigorous quality control to meet Superlift’s exacting standards, ensuring reliable performance over the life of your vehicle.

The corrosion-resistant coating protects against rust and environmental damage, making these radius arms suitable for all weather conditions and off-road use. Their robust construction supports the increased angles and stresses introduced by a 4-inch suspension lift, maintaining factory-level safety and ride quality.

Installation & Fitment

Installation of the Superlift radius arms is straightforward for experienced technicians and professional installers. These components are designed as direct replacements for the factory radius arms on Ram 2500 and 3500 trucks equipped with 4-inch lift kits. No major modifications are required, but alignment adjustments are recommended after installation to ensure optimal suspension geometry and tire wear.

Compatible with Ram models from 2013 to 2024, including 5.7L Hemi, 6.4L 392, and 6.7L Diesel engines, this component box fits a wide range of lifted trucks, making it a versatile upgrade for serious off-roaders and daily drivers alike.

What's Included

• Set of front radius arms designed for 4-inch lift kits
• Heavy-duty bushings pre-installed
• Mounting hardware and brackets as required
• Installation instructions and torque specifications

Ideal For

This radius arms component box is ideal for Ram 2500 and 3500 owners who have installed or plan to install a 4-inch Superlift suspension lift kit and require durable, high-quality replacement radius arms. It suits off-road enthusiasts, truck owners seeking improved suspension performance, and anyone looking to maintain factory-level handling and stability after lifting their vehicle.

Superlift Suspension Systems builds lift kits, leveling systems, shocks, and steering components engineered to increase ground clearance while keeping suspension geometry and control dialed in for real off-road use. It’s a staple brand for truck and SUV enthusiasts who want stronger stance and trail capability without giving up stability and ride confidence on the street.