SPL Parts FKS Series Front Spherical Caster Rod Bushing Set

2014–2016 BMW 435i (F32/F33)

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 2014-2016 BMW 435i models with F32 and F33 chassis. These bushings replace the factory rubber bushings with precision-engineered spherical bearings, offering a significant improvement in suspension response and handling feedback. Whether you're a spirited street driver, a track enthusiast, or an off-road adventurer, this upgrade helps you achieve more precise steering and better control under load.

Constructed with durability and performance in mind, these bushings eliminate bushing deflection and reduce friction, ensuring your suspension maintains optimal geometry during aggressive driving. This results in sharper turn-in, improved stability, and enhanced overall driving confidence. Designed for enthusiasts who demand the best, these spherical bushings help unlock your vehicle's full handling potential while maintaining reliable performance over time.

Key Features

The SPL Parts FKS Series Bushings incorporate several advanced features to deliver superior performance and durability:

• Massive 1" FK Racing Bearings with self-lubricating Teflon liners provide low friction articulation and long-lasting performance.
• Constructed from high-quality 6061-T6 aluminum, these bushings are lightweight yet incredibly strong, resisting corrosion and wear.
• Precision-machined spherical bearings eliminate the flex and deflection inherent in rubber bushings, resulting in more direct suspension feedback.
• Designed to maintain proper suspension geometry under load, enhancing braking, steering response, and cornering capabilities.
• Engineered for easy installation with OEM mounting points, requiring no modifications or additional tuning.
• Ideal for performance-minded drivers seeking improved handling characteristics without sacrificing reliability.

Construction & Design

The SPL Parts FKS Series Bushings feature a robust design centered around high-grade materials. The spherical bearings are housed within a CNC-machined 6061-T6 aluminum casing, ensuring precise fitment and durability. The use of self-lubricating Teflon liners within the FK Racing Bearings minimizes maintenance and prevents metal-on-metal wear, even under demanding conditions. The one-piece construction of the bearing assembly ensures consistent performance and resistance to deformation, making these bushings suitable for both daily driving and track use.

Installation & Fitment

The SPL Parts FKS Series Bushings are designed as a direct bolt-on replacement for the factory caster rod bushings on the specified BMW models. Installation is straightforward for those with basic mechanical skills, typically requiring standard hand tools. No cutting, drilling, or complex modifications are necessary. It is recommended to follow the included installation instructions carefully to ensure proper alignment and torque specifications are met. For optimal results, an alignment check is advised after installation.

What's Included

• Set of front spherical caster rod bushings with FK Racing Bearings
• High-quality aluminum housings
• All necessary hardware and mounting components
• Installation instructions

Ideal For

• BMW 435i owners seeking improved handling and steering response
• Performance enthusiasts looking to reduce suspension flex and deflection
• Track day drivers aiming for more precise suspension control
• Street drivers who want a more connected and confident driving experience