Cusco Rear Knuckle Pillowball Bushing

2014–2021 Mazda Roadster (ND5RC) 2.0L

Part #: 429 464 NV

Overview

The Cusco Rear Knuckle Pillowball Bushing is a high-performance suspension upgrade designed specifically for the Mazda Roadster (ND5RC). Engineered to enhance your vehicle's handling characteristics, this bushing replaces the factory rubber components with precision pillow balls that provide a more direct and responsive connection between the suspension and chassis. Ideal for enthusiasts seeking improved steering response, cornering accuracy, and straight-line stability, this product is perfect for spirited driving, track days, or any application where precise suspension control is desired.

By reducing alignment changes and minimizing deflection under load, the Cusco Pillowball Bushing helps you achieve more predictable and consistent handling. Its robust construction ensures durability and performance, even under demanding driving conditions, making it a reliable upgrade for both street and track use.

Key Features

The Cusco Rear Knuckle Pillowball Bushing incorporates several advanced features to optimize suspension performance:

• High-precision pillow balls crafted from durable materials to withstand aggressive driving and racing conditions.
• Reduces suspension joint play, resulting in sharper steering response and improved cornering stability.
• Designed to eliminate compression or deflection, allowing the suspension to perform at its full potential without unwanted movement.
• Includes rubber boots to protect the pillow balls from dirt, debris, and moisture, ensuring long-lasting performance and minimal maintenance.
• Constructed with high-quality materials that resist wear and deformation over time, maintaining optimal suspension geometry.
• Engineered for a direct bolt-on installation, simplifying the upgrade process without the need for extensive modifications.
• Enhances the overall driving experience by providing a more connected and responsive feel during dynamic maneuvers.

Construction & Design

The Cusco Rear Knuckle Pillowball Bushing features a meticulously designed housing that securely holds the high-precision pillow balls. The use of high-strength materials ensures that the bushings can handle the stresses of aggressive driving while maintaining their shape and performance. The inclusion of rubber boots serves as a protective barrier against dirt and contaminants, preserving the integrity of the pillow balls and extending their service life. The overall design emphasizes durability, precise fitment, and minimal maintenance, making it a trusted choice for performance-oriented drivers.

Performance & Sound

By replacing the factory rubber bushings with pillow balls, this upgrade significantly improves steering response and cornering precision. The direct connection reduces unwanted flex and deflection, allowing for more accurate feedback from the road. While it does not increase horsepower directly, the enhanced suspension control contributes to a more confident driving experience, especially during spirited driving or competitive events. The installation results in a firmer, more engaged feel without introducing excessive noise or harshness, maintaining a comfortable yet performance-focused ride quality.

Installation & Fitment

The Cusco Rear Knuckle Pillowball Bushing is designed as a bolt-on upgrade that requires no cutting, drilling, or complex modifications. It mounts directly onto the rear knuckle of the Mazda ND5RC, replacing the original rubber bushings with minimal effort. Basic mechanical skills and standard tools are sufficient for installation. For optimal results, alignment checks are recommended after installation to ensure proper suspension geometry and handling characteristics. No special tuning or adjustments are necessary, making this a straightforward upgrade for enthusiasts and professional installers alike.

• Direct bolt-on installation onto the rear knuckle of the Mazda Roadster (ND5RC).
• No cutting, drilling, or additional modifications required.
• Alignment check recommended after installation for optimal handling.

What's Included

• Rear knuckle pillowball bushing assembly
• Rubber boots for protection
• Installation hardware and instructions

Ideal For

• Performance enthusiasts seeking sharper handling and improved steering response
• Track day drivers aiming for more precise cornering
• Owners looking to reduce suspension play and enhance straight-line stability
• Anyone upgrading their Mazda ND5RC suspension for spirited driving or racing