SPL Parts Front Spherical Caster Rod Bushing Set

2017–2019 BMW 330i GT (F34)

Part #: SPL CRBN F3IX

Overview

The SPL Parts FKS Series Front Caster Rod Bushings (CRBN) are designed to enhance the suspension performance of your BMW 330i GT (F34) from 2017 to 2019. These bushings replace the factory rubber components with high-performance spherical bearings, providing a significant upgrade in handling precision and responsiveness. Whether you're a spirited street driver, a track enthusiast, or someone seeking improved suspension feedback, these bushings are engineered to deliver superior control and durability.

By replacing the stock flexible bushings with articulating spherical bearings, you'll experience reduced bushing deflection under load, which helps maintain optimal suspension geometry during aggressive driving. This results in more accurate steering response, improved braking stability, and enhanced overall handling characteristics. The upgrade is ideal for those looking to push their vehicle's performance without sacrificing reliability or daily drivability.

Key Features

The SPL Parts CRBN bushings incorporate several advanced features to maximize performance and longevity:

• Constructed with massive 1" FK Racing Bearings featuring self-lubricating Teflon liners, these bushings ensure smooth articulation and minimal friction over time.
• Made from high-quality 6061-T6 aluminum, the bearing housings are lightweight yet incredibly durable, resisting corrosion and wear.
• The spherical design eliminates the flex inherent in rubber bushings, providing a more direct connection between suspension components for precise handling feedback.
• Designed specifically for the F34 chassis, these bushings maintain proper suspension geometry under load, reducing unwanted camber and caster changes during cornering.
• Engineered with a focus on durability, the materials and construction methods ensure long-lasting performance even under demanding driving conditions.
• Easy bolt-on installation with no need for complex modifications, making it suitable for both enthusiasts and professional installers.
• Optimized for street and track use, these bushings help support increased steering response and stability, enhancing your driving experience.

Construction & Design

The SPL Parts CRBN bushings feature a precision-machined design that combines lightweight aluminum housings with high-grade spherical bearings. The use of 6061-T6 aluminum ensures a strong yet lightweight structure that resists corrosion and maintains structural integrity over time. The FK Racing Bearings are crafted with self-lubricating Teflon liners, reducing maintenance needs and preventing squeaks or binding during operation.

The spherical bearing setup replaces the stock rubber bushings, which are prone to flex and degradation over time. This design provides a more direct transfer of forces from the suspension to the chassis, resulting in sharper steering and more predictable handling. The components are engineered to fit perfectly within the factory mounting points, ensuring a secure and precise fit without the need for additional modifications.

Installation & Fitment

The SPL Parts CRBN bushings are designed as a direct bolt-on replacement for the factory caster rod bushings on the BMW F34 chassis. Installation typically requires basic hand tools and a lift or jack stands. No cutting, drilling, or complex modifications are necessary. For optimal results, some alignment adjustment may be recommended after installation to ensure proper suspension geometry. The process is straightforward for those familiar with suspension work, and detailed instructions are usually provided.

• Bolt-on installation with no need for specialized tools beyond standard suspension service equipment.
• Compatible exclusively with 2017-2019 BMW 330i GT (F34).
• Designed to work with the factory suspension setup, maintaining OEM mounting points and fitment.

What's Included

• Complete set of front spherical caster rod bushings with FK Racing Bearings
• High-quality aluminum housings
• All necessary hardware and mounting components
• Installation instructions (if provided by manufacturer)

Ideal For

• BMW 330i GT owners seeking improved handling and steering response
• Performance enthusiasts looking to reduce suspension flex and increase precision
• Track day drivers aiming for better suspension control during aggressive driving
• Street drivers wanting a more connected and responsive driving experience