SPL Parts FKS Series Front Spherical Caster Rod Bushing Set

2016–2018 BMW 340i xDrive (F30) 3.0L Turbocharged Inline-6

Part #: SPL CRBN F3IX

Overview

The SPL Parts FKS Series Front Spherical Caster Rod Bushing Set is a high-performance upgrade designed specifically for the BMW F30 340i xDrive models from 2016 to 2018. This set replaces the factory rubber bushings with precision-engineered spherical bearings, providing a significant improvement in suspension responsiveness and handling feedback. Whether you're a spirited driver, a track enthusiast, or someone seeking to enhance your vehicle's steering precision, these bushings are crafted to deliver maximum performance and durability.

By upgrading to these spherical bushings, you'll experience more direct steering feel, reduced bushing deflection under load, and improved stability during aggressive driving. The result is a more connected driving experience with sharper turn-in, better feedback, and enhanced control, especially during high-speed cornering or spirited driving sessions. Designed with durability and performance in mind, these bushings help maintain optimal suspension geometry, ensuring your vehicle handles as intended under various driving conditions.

Key Features

The SPL Parts FKS Series Bushings incorporate advanced materials and precise engineering to optimize suspension performance. Key features include:

• High-quality 6061-T6 aluminum bearing housings that provide excellent strength and corrosion resistance, ensuring long-lasting performance even in demanding conditions.
• Massive 1" FK Racing spherical bearings with self-lubricating Teflon liners, offering low friction articulation for smooth movement and minimal wear over time.
• Low-friction, articulating design eliminates bushing deflection, maintaining consistent suspension geometry under load for improved handling and braking feedback.
• Engineered to replace the stock flexible rubber bushings, these spherical bearings reduce unwanted movement and flex, translating to more precise control and response.
• Designed specifically for the front caster rods, ensuring a perfect fit and straightforward installation without modifications.
• Constructed with durability in mind, capable of withstanding aggressive driving, track use, and daily driving alike.
• Enhanced suspension stability contributes to improved tire contact patch and overall vehicle dynamics.
• Optimized for enthusiasts who demand maximum performance and reliability from their suspension components.

Construction & Design

The SPL Parts FKS Series bushings feature a robust construction utilizing 6061-T6 aluminum for the bearing housings, which provides a lightweight yet durable foundation. The spherical bearings are crafted from FK Racing's high-performance materials, with self-lubricating Teflon liners that eliminate the need for ongoing maintenance and reduce friction. The bearings are housed within precisely machined aluminum components that ensure a perfect fit and alignment, minimizing any unwanted movement or play.

The design emphasizes strength, precision, and longevity, with components engineered to withstand the rigors of aggressive driving and track use. The spherical articulation allows for full movement without binding, ensuring consistent suspension geometry and handling characteristics. The set is engineered to be a direct bolt-in upgrade, simplifying installation and ensuring compatibility with the factory suspension setup.

Installation & Fitment

The SPL Parts FKS Series Front Spherical Caster Rod Bushing Set is designed as a direct replacement for the factory bushings on the BMW F30 340i xDrive from 2016 to 2018. Installation involves removing the existing bushings and pressing in the new spherical bearings, a process that typically requires standard suspension tools and some mechanical expertise. No cutting, drilling, or modifications are necessary, and the set is engineered for a straightforward bolt-in installation.

• Designed for easy installation with common suspension tools.
• No modifications or tuning required for proper fitment and performance.
• Ideal for enthusiasts seeking to improve steering response and suspension precision.

What's Included

• Front Spherical Caster Rod Bushing Set with FK Racing spherical bearings
• Aluminum bearing housings
• All necessary hardware and mounting components
• Installation instructions

Ideal For

• Performance-minded BMW owners seeking improved handling and steering feedback
• Track enthusiasts looking for more precise suspension control
• Drivers who want to eliminate bushing flex and maintain optimal suspension geometry under load
• Anyone upgrading their suspension for spirited driving or aggressive cornering