SPL Parts FKS Series Front Spherical Caster Rod Bushing Set

2013–2016 BMW 328i xDrive / 335i (F30/F31) 3.0L Turbo

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 F30 and F31 models from 2013 to 2016. These high-performance bushings replace the factory rubber components with precision-engineered spherical bearings, providing a significant upgrade in steering response, stability, and overall driving feedback. Whether you're a spirited street driver, a track enthusiast, or someone seeking improved suspension precision, this bushing set is an excellent choice to unlock your vehicle's true potential.

By eliminating bushing deflection and reducing friction, these spherical bearings maintain optimal suspension geometry under load, resulting in more predictable handling and improved braking performance. The use of high-quality materials and advanced design ensures durability and consistent performance, even under demanding driving conditions. If you're looking to improve your BMW's responsiveness and handling characteristics, this bushing set offers a reliable, race-inspired upgrade.

Key Features

The SPL Parts FKS Series Front Spherical Caster Rod Bushing Set incorporates several advanced features designed for maximum performance and longevity:

• Constructed with massive 1" FK Racing Bearings featuring self-lubricating Teflon liners, ensuring smooth articulation and minimal maintenance over time.
• Made from high-grade 6061-T6 aluminum, providing a lightweight yet durable housing that withstands harsh driving conditions.
• Designed to replace the stock flexible rubber bushings, these spherical bearings eliminate deflection, resulting in more precise suspension geometry during aggressive driving or cornering.
• Engineered for easy installation with OEM fitment, requiring no modifications or complex adjustments.
• Reduces friction and bushing flex, which helps support improved steering feel, sharper turn-in, and enhanced feedback from the road surface.
• Ideal for enthusiasts seeking a performance-oriented upgrade that enhances both daily driving comfort and track-ready handling.

Construction & Design

The SPL Parts FKS Series bushings are meticulously crafted using high-quality materials to ensure durability and consistent performance. The core spherical bearings are made from precision-machined FK Racing components, featuring a 1" diameter for maximum load capacity and stability. The self-lubricating Teflon liners within the bearings reduce friction and eliminate the need for regular maintenance, making them a reliable upgrade for daily drivers and track enthusiasts alike.

The aluminum housing is CNC-machined from 6061-T6 aluminum, known for its strength-to-weight ratio and corrosion resistance. This robust construction ensures that the bushings can withstand the rigors of aggressive driving while maintaining precise alignment and suspension geometry. The design emphasizes ease of installation, with OEM-compatible mounting points that fit seamlessly into your vehicle's existing suspension setup.

Installation & Fitment

The SPL Parts FKS Series Front Spherical Caster Rod Bushing Set is designed as a direct bolt-on replacement for the factory bushings on the 2013-2016 BMW 328i xDrive and 335i (F30/F31). No cutting, drilling, or complex modifications are required. Basic hand tools and some suspension knowledge are recommended for proper installation. The process typically involves removing the existing bushings and pressing in the new spherical bearings, which can be accomplished with standard suspension service tools. For optimal results, professional installation is advised to ensure correct alignment and torque specifications.

Once installed, you'll immediately notice improved steering precision and a more responsive feel, making your driving experience more engaging and confident.

What's Included

• Complete 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 a performance suspension upgrade
• Track day drivers aiming for sharper handling and stability
• Street drivers wanting improved steering response and feedback
• Owners looking to replace worn or flexible factory bushings for a more precise suspension feel