SPL Parts Front Spherical Caster Rod Bushing Set

2017–2019 BMW 330i (F30/F31)

Part #: SPL CRBN F3IX

Overview

The SPL Parts FKS Series Front Caster Rod Bushings (CRBN) are designed to enhance the handling and steering response of your BMW 330i (F30/F31) from 2017 to 2019. These bushings replace the factory rubber components with high-performance spherical bearings, providing a more direct and precise connection between your suspension components. Whether you're a spirited driver, a track enthusiast, or someone looking to improve daily driving feedback, these bushings deliver noticeable improvements in suspension geometry and overall vehicle control.

By upgrading to these spherical bushings, you'll experience reduced bushing deflection under load, which translates to sharper steering feel and more consistent handling. They are engineered to maintain optimal suspension geometry, helping to improve braking stability and cornering confidence. Designed with durability and performance in mind, these bushings are ideal for drivers seeking a more responsive and engaging driving experience.

Key Features

The SPL Parts FKS Series Bushings incorporate several advanced features to maximize performance and longevity:

• Massive 1" FK Racing Bearings with self-lubricating Teflon liners ensure smooth articulation and reduce friction, providing consistent performance over time.
• Constructed from high-quality 6061-T6 aluminum, these bushings offer excellent strength and corrosion resistance, making them suitable for both street and track use.
• Articulating spherical bearings eliminate the flex and deflection associated with rubber bushings, resulting in more precise suspension movement and improved handling feedback.
• Designed specifically for the front caster rods, these bushings help maintain proper suspension geometry during aggressive driving or cornering.
• Easy bolt-on installation with no need for complex modifications, making them a popular upgrade for enthusiasts and professionals alike.
• Enhanced durability ensures long-lasting performance even under demanding driving conditions.

Construction & Design

The SPL Parts CRBN bushings feature a robust design centered around high-grade spherical bearings housed within a lightweight yet durable aluminum shell. The use of 6061-T6 aluminum provides a perfect balance of strength and weight savings, contributing to improved handling without adding unnecessary mass. The FK Racing Bearings are precision-machined and incorporate self-lubricating Teflon liners, which reduce maintenance and prevent squeaks or binding over time. The spherical articulation allows for maximum suspension movement and precise control, making these bushings an excellent choice for performance-oriented driving.

Installation & Fitment

The SPL Parts FKS Series Bushings are designed as direct bolt-on replacements for the factory caster rod bushings on the 2017-2019 BMW 330i (F30/F31). Installation is straightforward for those with basic mechanical skills, requiring only standard hand tools. No cutting, drilling, or complex modifications are necessary. Proper alignment is recommended after installation to ensure optimal suspension geometry and handling performance. The upgrade provides a significant handling improvement without sacrificing daily drivability.

• Direct bolt-on installation
• No cutting or drilling required
• Compatible with factory suspension components
• Ideal for street, spirited driving, and track use

What's Included

• Set of front spherical caster rod bushings with FK Racing Bearings
• All necessary mounting hardware and spacers
• Installation instructions

Ideal For

• BMW enthusiasts seeking improved steering precision
• Drivers looking to reduce suspension flex and deflection
• Track day and performance driving enthusiasts
• Anyone wanting to maintain or restore optimal suspension geometry under load