SPL Parts Adjustable Front Caster Rod Bushings

Part #: SPL CRB E9X

Overview

The SPL Parts Adjustable Front Caster Rod Bushings are high-performance suspension components designed specifically for the BMW 3 Series (E90/E91/E92/E93) models from 2006 to 2013. These bushings replace the factory rubber units with precision-engineered spherical bearings, offering a significant upgrade in suspension response and handling consistency. Crafted for enthusiasts and professional tuners alike, these bushings help maintain optimal suspension geometry under load, resulting in improved steering feel, braking stability, and cornering performance. Their robust construction ensures durability and reliable performance in demanding driving conditions, making them an ideal choice for track days, spirited driving, or street use where precise handling is desired.

Key Features

Designed with performance and durability in mind, these bushings feature massive 1" FK Racing Bearings with self-lubricating Teflon liners, reducing friction and wear over time. The CNC-machined offset bearing spacer allows for precise adjustments to caster angle, enabling fine-tuning of suspension geometry to suit your driving style. The low-friction spherical bearing design eliminates bushing deflection, providing more direct steering feedback and enhanced handling response. Constructed from high-quality materials, these bushings are engineered to withstand the stresses of aggressive driving while maintaining consistent performance.

Construction & Design

The SPL FKS Series bushings utilize CNC-machined aluminum spacers and high-grade spherical bearings, ensuring precise fitment and longevity. The use of self-lubricating Teflon liners within the FK Racing Bearings minimizes maintenance needs and maximizes operational smoothness. The design focuses on reducing bushing flex and deflection, which translates into more predictable handling and improved driver feedback.

Driving Feel & Feedback

These adjustable caster bushings help improve steering response and stability, especially during aggressive cornering and braking. The elimination of rubber bushings results in a more direct connection between the suspension and chassis, enhancing overall driving engagement and confidence.

Installation & Fitment

Installation requires basic suspension tools and should be performed by those familiar with suspension modifications. Proper alignment after installation is recommended to ensure optimal handling characteristics and caster adjustment.

What’s Included

The package includes all necessary spherical bearings, CNC-machined spacers, and hardware required for installation, providing a complete upgrade for your vehicle’s front suspension geometry.