Superpro Front Control Arm Upper-Inner Bushing Kit

2001–2005 Lexus IS300

Part #: SPF4384K

Overview

The SuperPro Front Control Arm Upper-Inner Bushing Kit is designed to restore and enhance the handling and stability of your Lexus IS300 from 2001 to 2005. Over time, worn or degraded rubber bushings in the control arms can lead to compromised wheel alignment, increased tire wear, and less precise handling. This kit provides a reliable upgrade or replacement solution to maintain optimal suspension geometry and driving performance.

Whether you're a daily driver seeking improved ride quality or a performance enthusiast aiming for sharper handling, these bushings help ensure your vehicle responds accurately to driver inputs. By replacing the factory rubber components with durable, high-quality polyurethane bushings, you'll experience more consistent handling, reduced tire wear, and enhanced overall vehicle control.

Key Features

SuperPro's control arm bushings are engineered with durability and performance in mind, making them an ideal choice for both repair and upgrade applications. The key features include:

• Manufactured from high-grade polyurethane material that resists wear, cracking, and deformation over time.
• Designed to maintain proper suspension geometry, preventing dynamic changes in wheel alignment during driving.
• Precisely engineered to fit the 2001–2005 Lexus IS300, ensuring a straightforward, bolt-on installation.
• Reduces unwanted movement and flex in the control arm, resulting in improved handling and responsiveness.
• Helps extend the lifespan of your suspension components by providing a more stable and resilient bushing material.
• Suitable for street use, spirited driving, and track days, offering a balance of comfort and performance.
• SuperPro's durable construction ensures long-lasting performance, even under demanding driving conditions.

Construction & Design

The SuperPro control arm bushings are crafted from a proprietary polyurethane compound that offers superior durability compared to traditional rubber bushings. The bushings are precisely molded to match the OEM specifications, ensuring a perfect fit and seal. Their one-piece design provides enhanced strength and stability, reducing unwanted movement and vibrations.

The bushings feature a robust construction that resists cracking, tearing, and deformation, even after prolonged exposure to heat, moisture, and road debris. This ensures consistent performance and longevity, making them a reliable upgrade for your vehicle's suspension system. The installation process is straightforward, with all components designed to integrate seamlessly with the existing control arms without modifications.

Performance & Handling

Replacing worn control arm bushings with SuperPro's polyurethane kit significantly improves your vehicle's handling characteristics. Expect more precise steering response, reduced body roll, and improved cornering stability. The stiffer bushings help maintain proper suspension geometry under load, which translates to better tire contact with the road and more predictable handling.

While these bushings are optimized for street and spirited driving, they also provide a noticeable improvement in ride quality and tire wear over worn OEM rubber bushings. The enhanced stability and reduced flex contribute to a more confident driving experience, whether on daily commutes or aggressive driving sessions.

Installation & Fitment

The SuperPro Front Control Arm Upper-Inner Bushing Kit is designed as a direct bolt-on replacement for the original factory bushings. No cutting, drilling, or complex modifications are required. Basic hand tools and suspension knowledge are recommended for installation, which can typically be completed in a few hours.

For best results, it is advisable to inspect and replace other suspension components as needed during the installation process. Proper alignment after installation is recommended to maximize handling benefits and tire longevity.

What's Included

• Complete set of polyurethane upper-inner control arm bushings
• Installation instructions
• All necessary hardware and components for a secure fit

Ideal For

• Owners seeking to restore factory handling and stability
• Performance enthusiasts looking to improve steering response
• Drivers experiencing uneven tire wear or loose steering feel
• Anyone performing suspension repairs or upgrades on a 2001–2005 Lexus IS300