SPL Parts Front Spherical Caster Rod Bushing Set

2015–2016 BMW M235i xDrive / 2013–2015 BMW 335i (F30) 3.0L Turbo

Part #: SPL CRBN F3IX

Overview

The SPL Parts FKS Series Front Caster Rod Bushings (CRBN) are designed to upgrade your BMW's suspension system, transforming the way your vehicle handles under load. Specifically engineered for the 2013-2015 BMW 335i (F30) and the 2015-2016 BMW M235i xDrive (F22/F23), these bushings replace the factory rubber components with high-performance spherical bearings. This upgrade is ideal for enthusiasts seeking improved steering response, enhanced handling precision, and more direct feedback during spirited driving or track days.

By replacing the stock flexible bushings with low-friction, articulating spherical bearings, you'll experience a significant reduction in bushing deflection, which translates to more consistent suspension geometry and better overall control. Whether you're pushing your vehicle on twisty roads or at the race track, these bushings help maintain optimal alignment and suspension performance, giving you confidence in every corner.

Key Features

The SPL Parts FKS Series Bushings incorporate advanced materials and precise engineering to deliver maximum performance and durability. Here are some of the standout features:

• High-Quality Materials: Crafted from 6061-T6 aluminum, these bushings are lightweight yet incredibly strong, providing excellent resistance to corrosion and fatigue.
• Massive FK Racing Bearings: Equipped with 1" FK Racing spherical bearings, these bushings eliminate the flex and deflection inherent in rubber mounts, ensuring your suspension geometry remains consistent under load.
• Self-Lubricating Teflon Liners: The bearings feature Teflon liners that provide smooth articulation and reduce maintenance needs, ensuring long-lasting performance.
• Precision Engineering: Designed to maintain factory fitment while offering a significant upgrade in handling characteristics, these bushings are CNC-machined for perfect alignment and fit.
• Enhanced Handling & Feedback: By reducing bushing compliance, you'll notice sharper turn-in, improved steering feel, and more predictable handling during aggressive driving.
• Durability & Reliability: Built to withstand the rigors of high-performance driving, these bushings are ideal for daily drivers, track enthusiasts, and racers alike.

Construction & Design

The SPL Parts CRBN bushings feature a robust construction that combines lightweight aluminum housings with high-performance spherical bearings. The CNC-machined 6061-T6 aluminum ensures a precise fit and excellent corrosion resistance, while the FK Racing spherical bearings provide a low-friction, articulating interface that maintains suspension geometry under various loads. The self-lubricating Teflon liners within the bearings reduce wear and eliminate the need for frequent maintenance, offering a hassle-free upgrade that enhances your vehicle's handling characteristics.

Installation & Fitment

The SPL Parts FKS Series Bushings are designed as direct bolt-on replacements for the factory caster rod bushings. Installation typically requires basic hand tools and a lift or jack stands, along with some mechanical knowledge. No modifications, cutting, or drilling are necessary, making this upgrade straightforward for experienced DIY enthusiasts or professional installers. Proper alignment after installation is recommended to maximize performance benefits.

• Easy bolt-on installation with standard hand tools
• No cutting, drilling, or special tuning required
• Maintains factory mounting points and suspension geometry

What's Included

• Set of SPL Parts FKS Series Front Caster Rod Bushings (CRBN)
• All necessary hardware and mounting components
• Installation instructions

Ideal For

• BMW enthusiasts seeking improved handling and steering response
• Track day and performance driving enthusiasts
• Owners looking to eliminate bushing deflection and maintain suspension geometry under load
• Drivers wanting a more connected and precise driving experience