SPL Parts FKS Series Front Caster Rod Bushings

2013–2018 BMW 320i xDrive (F30) / 335i (F30) 3 Series

Part #: SPL CRBN F3IX

Overview

The SPL Parts FKS Series Front Caster Rod Bushings are high-performance upgrade components designed specifically for the BMW F30 3 Series models from 2013 to 2018. These bushings replace the factory rubber bushings with precision-engineered spherical bearings, delivering improved suspension response and handling characteristics. Whether you're a spirited street driver, a track enthusiast, or someone seeking enhanced steering feedback, these bushings are crafted to elevate your driving experience.

By replacing the flexible rubber with low-friction, articulating spherical bearings, you'll notice more direct and predictable steering, reduced bushing deflection under load, and improved braking feedback. The result is a more connected feel to the road, increased stability during aggressive maneuvers, and a sharper overall driving dynamic. Designed with durability and performance in mind, these bushings are ideal for drivers who demand precision and reliability from their suspension components.

Key Features

The SPL Parts FKS Series Front Caster Rod Bushings incorporate several advanced features that set them apart from stock components:

• Constructed with massive 1" FK Racing Bearings featuring self-lubricating Teflon liners, these bushings ensure maximum durability and smooth articulation over time.
• Made from high-quality 6061-T6 aluminum, the bearing housings provide excellent strength and corrosion resistance, maintaining integrity even under demanding driving conditions.
• Designed to eliminate bushing deflection, these spherical bearings maintain optimal suspension geometry under load, enhancing handling precision and steering feedback.
• Low friction articulation reduces binding and allows for more responsive steering inputs, especially during aggressive driving or cornering.
• Precision CNC-machined components ensure a perfect fit and easy installation, making these bushings a reliable upgrade for your vehicle’s suspension system.
• Engineered to withstand the rigors of high-performance driving, these bushings are suitable for both street and track use, providing consistent performance over time.
• Enhanced suspension stability contributes to improved braking performance and reduced body roll, giving you greater confidence behind the wheel.

Construction & Design

The SPL Parts FKS Series Bushings are meticulously crafted from high-grade materials to deliver superior performance and longevity. The core of each bushing features a 1" FK Racing Bearing with a self-lubricating Teflon liner, which minimizes friction and wear, ensuring smooth operation over thousands of miles. The bearing is housed within a lightweight, yet robust, 6061-T6 aluminum casing that is CNC-machined for precise dimensions and a perfect fit.

The spherical design replaces the stock rubber bushings, which are prone to flex and deterioration over time. This design maintains consistent suspension geometry, even under heavy loads or aggressive driving. The use of high-quality materials and precision manufacturing processes ensures these bushings resist corrosion, withstand high stress, and provide long-lasting performance.

Performance & Handling

Upgrading to SPL Parts FKS Series Bushings significantly enhances your vehicle's handling characteristics. The elimination of bushing deflection results in more direct steering response and improved feedback, allowing you to better feel the road and make precise adjustments. The spherical bearings reduce unwanted movement and flex, translating to more predictable cornering and stability at high speeds.

Drivers will experience a more planted feel during spirited driving, with improved turn-in response and reduced understeer or oversteer tendencies. The enhanced suspension geometry helps maintain optimal alignment angles, which can contribute to better tire wear and overall vehicle balance. These bushings are an excellent choice for enthusiasts looking to maximize their BMW's handling capabilities without sacrificing daily drivability.

Installation & Fitment

The SPL Parts FKS Series Front Caster Rod Bushings are designed as direct bolt-on replacements for the factory bushings on the BMW F30 3 Series from 2013 to 2018. Installation typically requires basic hand tools and some suspension knowledge. Due to the precision fitment, professional installation is recommended to ensure proper alignment and function. No modifications or additional tuning are generally necessary, making this an accessible upgrade for most DIY enthusiasts and professional mechanics alike.

• Direct replacement for factory bushings
• No cutting, drilling, or complex modifications required
• Designed for easy installation with standard hand tools

What's Included

• Set of SPL Parts FKS Series Front Caster Rod Bushings
• High-quality FK Racing Bearings with Teflon liners
• Aluminum bearing housings
• All necessary hardware and mounting components
• Installation instructions

Ideal For

This upgrade is perfect for BMW owners seeking to improve their vehicle's handling, steering response, and overall driving dynamics. It is especially beneficial for those who participate in spirited driving, autocross, or track days, but also want a more engaging and responsive daily driver. The durability and performance of these bushings make them suitable for demanding driving conditions and long-term use.