• Whiteline Front Upper Control Arm Bushings - Inner Position - KCA421
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Whiteline Front Upper Control Arm Bushings - Inner Position - KCA421

Whiteline Front Upper Control Arm Bushings - Inner Position - KCA421

KCA421

In stock

$102.88 USD
$102.88 USD $102.88 USD
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The Whiteline Front Upper Control Arm Bushings are high-performance polyurethane components designed for 2003–2010 Mazda Miata and Mazda RX-8 models. These bushings replace the factory rubber parts in the front upper control arms to enhance handling, steering precision, and suspension responsiveness. Constructed from durable polyurethane, they provide improved stability and reduced deflection under aggressive driving conditions, making them ideal for spirited driving, track use, or suspension upgrades. Their design ensures a more direct connection between the control arm and chassis, resulting in sharper steering feedback and better overall vehicle control.

These bushings are a direct replacement for the factory components on 2003–2010 Mazda Miata and RX-8 vehicles. They are intended for use in the front upper control arm inner position and are suitable for street, track, or performance driving applications. Installation involves replacing the existing rubber bushings with these polyurethane units, offering a straightforward upgrade for improved suspension performance. The kit includes the necessary bushings, providing a reliable solution for drivers seeking enhanced handling and stability in their Mazda sports cars.

Overview

Whiteline Front Upper Control Arm Bushings - Inner Position

Part #: KCA421

Overview

The Whiteline Front Upper Control Arm Bushings in the inner position are precision-engineered components designed to enhance your vehicle's suspension performance. Crafted for enthusiasts and daily drivers alike, these bushings help improve handling response, steering feel, and overall ride quality. Made from durable, high-quality materials, they are built to withstand the rigors of spirited driving and long-term use, ensuring consistent performance over time. Whether you're restoring a classic or upgrading your modern vehicle, these bushings provide a reliable solution for maintaining optimal suspension geometry and response.

Key Features

Designed with performance and durability in mind, these control arm bushings feature:
  • High-performance polyurethane material for improved stiffness and longevity
  • Precision-machined inner and outer surfaces for a secure fit
  • Enhanced resistance to wear, heat, and environmental factors
  • Designed to reduce unwanted suspension movement and improve handling
  • Easy to install with standard tools, suitable for DIY or professional installation
  • Maintains proper suspension alignment for consistent tire contact and handling
  • Compatible with a wide range of vehicle makes and models

Construction & Design

These bushings are constructed from high-grade polyurethane, selected for its balance of flexibility and firmness. The design incorporates precise machining to ensure a snug fit within the control arm, reducing play and unwanted movement. The material's resistance to deformation and environmental factors ensures long-lasting performance, even under demanding driving conditions.

Driving Feel & Feedback

By replacing worn or degraded factory bushings, these components help restore the vehicle’s original handling characteristics. They provide a more direct steering response and improved feedback, giving you greater confidence and control on the road or track. The enhanced suspension stability results in a more predictable and engaging driving experience.

Installation & Fitment

Installation involves removing the existing control arm bushings and pressing in the new Whiteline units. While the process is straightforward for those with basic mechanical skills, it may require specialized tools such as a bushing press. Fitment should be verified against your vehicle’s specifications and part compatibility to ensure proper installation.

What’s Included

The package includes the inner position control arm bushings necessary for a complete upgrade, along with any hardware required for installation. Additional components or tools are not included and may be needed depending on your vehicle and installation method.
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