SPL Parts Front Spherical Caster Rod Bushing Set

2014–2016 BMW 335i GT (F34) / 2013–2015 BMW 335i (F30) 3.0L Turbo

Part #: SPL CRBN F3IX

Overview

The SPL Parts FKS Series Front Caster Rod Bushings are designed to enhance the handling and steering precision of your BMW 335i GT (F34) and 335i (F30) models. Replacing the factory rubber bushings with high-performance spherical bearings, these bushings eliminate bushing deflection and reduce friction, providing a more direct and responsive connection between your suspension components and chassis. Whether you're a spirited street driver or a track enthusiast, these bushings help maintain optimal suspension geometry under load, resulting in improved braking feedback, sharper turn-in, and more predictable handling.

Constructed with durability and performance in mind, the SPL FKS Series bushings are ideal for drivers seeking to upgrade their vehicle's suspension for better feedback and control. They are especially beneficial for those who push their vehicles hard on twisty roads or at the track, where suspension precision makes a significant difference in overall driving experience.

Key Features

The SPL Parts FKS Series Front Caster Rod Bushings incorporate advanced materials and engineering to deliver maximum performance and longevity. Key features include:

• Massive 1" FK Racing Bearings with self-lubricating Teflon liners, ensuring smooth articulation and reducing maintenance needs over time.
• 6061-T6 aluminum bearing housings that provide excellent strength and corrosion resistance, maintaining structural integrity under demanding conditions.
• Low friction spherical bearings that eliminate bushing deflection, resulting in more precise steering response and improved handling feedback.
• Articulating design that maintains suspension geometry during dynamic driving, helping to optimize tire contact and grip.
• High-quality manufacturing with TIG welding and CNC-machined components for precise fitment and durability.
• Designed specifically for the F30 and F34 chassis, ensuring a perfect fit and straightforward installation.
• Enhanced performance for both street and track use, supporting aggressive driving styles and spirited handling.

Construction & Design

The SPL Parts FKS Series bushings feature a robust construction combining lightweight aluminum housings with high-performance spherical bearings. The 6061-T6 aluminum provides a lightweight yet durable housing that resists corrosion and withstands the stresses of aggressive driving. The massive 1" FK Racing Bearings are crafted from high-quality materials with self-lubricating Teflon liners, reducing friction and wear over time. This design ensures consistent performance and long service life, even under demanding conditions. The spherical bearings allow for free articulation, eliminating the compliance and deflection associated with rubber bushings, which translates into more precise steering and handling. The components are CNC-machined for exact fitment and TIG-welded for added strength and durability.

Installation & Fitment

The SPL Parts FKS Series Front Caster Rod Bushings are designed as direct bolt-on replacements for the factory bushings on the 2014–2016 BMW 335i GT (F34) and 2013–2015 BMW 335i (F30). The installation process typically requires basic hand tools and may benefit from alignment adjustments afterward to ensure optimal suspension geometry. No cutting, drilling, or complex modifications are necessary, making this upgrade accessible for most DIY enthusiasts or professional technicians. Proper installation ensures maximum performance benefits and longevity of the components.

• Direct bolt-on replacement for factory bushings
• No cutting, drilling, or tuning required
• Ideal for street and track use
• Supports aggressive driving and improved handling feedback

What's Included

• Front Spherical Caster Rod Bushings (pair)
• All necessary hardware and mounting components
• Installation instructions

Ideal For

• BMW 335i (F30) and 335i GT (F34) owners seeking improved steering response
• Performance enthusiasts and track day drivers
• Drivers looking to eliminate bushing deflection and enhance handling precision