SPL Parts FKS Series Front Spherical Caster Rod Bushing Set

2014–2016 BMW 328i GT xDrive (F34) / 2013–2015 BMW 335i (F30) 3 Series

Part #: SPL CRBN F3IX

Overview

The SPL Parts FKS Series Front Spherical Caster Rod Bushing Set is designed to enhance the handling and suspension performance of your BMW 3 Series, specifically for models from 2014 to 2016 (F34) and 2013 to 2015 (F30). Replacing the factory rubber bushings with high-performance spherical bearings, this upgrade provides a more direct and responsive connection between your suspension components. Whether you're a spirited driver, track enthusiast, or someone seeking improved steering feedback, these bushings help you achieve better control and precision.

By eliminating bushing deflection and reducing friction, the SPL FKS Series bushings maintain optimal suspension geometry under load, resulting in improved braking stability, sharper turn-in, and enhanced overall handling. Crafted for durability and performance, these bushings are an excellent upgrade for those looking to push their vehicle's handling capabilities without sacrificing daily drivability.

Key Features

The SPL Parts FKS Series bushings incorporate several advanced features to deliver superior performance and longevity:

• Constructed with massive 1" FK Racing Bearings featuring self-lubricating Teflon liners for maximum durability and smooth articulation.
• Made from high-quality 6061-T6 aluminum, ensuring lightweight strength and resistance to corrosion.
• Designed to replace the factory flexible rubber bushings, providing a more solid and predictable suspension response.
• Articulating spherical bearings eliminate bushing deflection, maintaining consistent suspension geometry under load.
• Precision CNC-machined for perfect fitment and ease of installation.
• Ideal for street, spirited driving, and track use, offering improved handling feedback and steering response.
• Engineered to withstand high loads and harsh conditions, ensuring long-lasting performance.

Construction & Design

The SPL Parts FKS Series bushings feature a robust design centered around high-quality FK Racing spherical bearings. These bearings are housed within a lightweight, yet durable, 6061-T6 aluminum shell that is CNC-machined for precise fitment. The self-lubricating Teflon liners inside the bearings reduce friction and eliminate the need for regular maintenance, ensuring consistent performance over time. The use of high-grade materials and meticulous manufacturing processes results in a product that offers both strength and reliability, making it suitable for aggressive driving and demanding conditions.

Installation & Fitment

The SPL Parts FKS Series Front Spherical Caster Rod Bushings are designed as a direct bolt-on upgrade for the specified BMW models. Installation typically requires basic hand tools and some suspension disassembly, but no cutting, drilling, or complex modifications are necessary. Proper alignment is recommended after installation to ensure optimal suspension geometry and handling performance. The process is straightforward for those familiar with suspension work, and detailed instructions are usually included or available from SPL Parts.

• Direct replacement for factory bushings
• No special tuning or adjustments required
• Designed for ease of installation with standard tools

What's Included

• Set of front spherical caster rod bushings with FK Racing Bearings
• Aluminum bearing housings
• All necessary hardware and mounting components
• Installation instructions

Ideal For

This upgrade is perfect for BMW enthusiasts seeking to improve their vehicle's handling, steering response, and overall driving experience. It is well-suited for street drivers, autocross participants, and track day enthusiasts who demand precise suspension performance and durability from their components.