SPL Parts FKS Series Front Spherical Caster Rod Bushing Set

2015–2016 BMW 435i Gran Coupe (F36) / 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 suspension performance of your BMW 435i Gran Coupe (F36) and 335i (F30). Replacing the factory rubber bushings with high-quality spherical bearings, this set offers superior articulation and reduced deflection, providing a more responsive and precise handling experience. Whether you're a spirited street driver or a track enthusiast, these bushings help maintain optimal suspension geometry under load, translating to improved steering feedback, better braking stability, and enhanced overall control.

Built for those who demand maximum performance and durability, the SPL FKS Series bushings eliminate the flex and friction inherent in stock rubber components. This results in more direct power transfer and a more connected feel through the steering wheel. Designed with both performance and longevity in mind, these bushings are ideal for drivers looking to push their vehicle's handling capabilities while maintaining reliability on the street or track.

Key Features

The SPL Parts FKS Series Front Spherical Caster Rod Bushings incorporate advanced materials and engineering to deliver unmatched performance:

• Constructed with massive 1" FK Racing Bearings featuring self-lubricating Teflon liners, ensuring smooth articulation and long-lasting durability.
• Made from high-grade 6061-T6 aluminum, these bushings are lightweight yet robust, providing excellent strength without adding unnecessary weight.
• Replace the stock flexible rubber bushings with low-friction spherical bearings that eliminate bushing deflection, maintaining precise suspension geometry under load.
• Designed to reduce friction and improve suspension response, resulting in sharper steering and more predictable handling.
• Engineered for easy installation with OEM mounting points, requiring no modifications or complex adjustments.
• Built to withstand harsh driving conditions, ensuring consistent performance over time.
• Enhances braking feedback by maintaining proper suspension alignment during aggressive driving.
• Ideal for enthusiasts seeking to improve their vehicle's handling dynamics without sacrificing daily drivability.

Construction & Design

The SPL FKS Series bushings feature a precision-machined 6061-T6 aluminum housing that securely holds the FK Racing spherical bearings. The bearings themselves are designed with self-lubricating Teflon liners, which reduce maintenance needs and prevent metal-on-metal wear. The use of high-quality materials ensures resistance to corrosion and thermal expansion, maintaining optimal performance in various driving conditions. The spherical design allows for full articulation, minimizing bushing deflection and providing a more direct connection between the suspension components and the chassis. This meticulous engineering results in improved handling response, stability, and steering feel, making these bushings a top choice for performance-oriented BMW owners.

Installation & Fitment

The SPL Parts FKS Series Front Spherical Caster Rod Bushing Set is designed as a direct bolt-on upgrade for 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, and the bushings are engineered to fit precisely with OEM suspension components. It is recommended to follow proper torque specifications and alignment procedures after installation to ensure optimal performance and longevity. For best results, professional installation is advised, especially if you are unfamiliar with suspension work.

• Direct bolt-on replacement for factory bushings
• No cutting, drilling, or special tuning required
• Compatible with 2013-2015 BMW 335i (F30) and 2015-2016 BMW 435i Gran Coupe (F36)

What's Included

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

Ideal For

• BMW enthusiasts seeking improved handling and steering response
• Track day and spirited street drivers
• Owners looking to eliminate suspension flex and enhance overall vehicle control
• Performance tuning and suspension upgrade enthusiasts