BMW 4 Series Caster Rod Bushings - Front by SPL Parts (Non-Adjustable) replace the factory caster rod rubber with precision spherical bearings for F2X/F3X BMW 3/4 Series (2012+). Designed to control geometry and deliver consistent road feedback.

Built in SPL’s FKS Series, these bushings use massive 1 inch FK Racing Bearings with self lubricating PTFE liners to reduce friction and eliminate bushing deflection under braking and cornering. By accurately locating the caster arm, they help maintain alignment, enhance steering response, and improve braking feedback. Sold as a pair; engineered and assembled in the USA.

Features

• Spherical bearings replace compliant rubber bushings
• Maintains suspension geometry under load
• 1 inch FK bearings with self lubricating Teflon PTFE liners
• Non adjustable, front caster rod application for F2X/F3X

Questions about fitment or setup? Call us at 512-982-9393 (TX) or 562-981-6800 (CA). We have locations in Austin, Texas and the Los Angeles, California area, offering installation and customization services.

Buying multiple items? Contact us for shipping discounts. We install on premises at both locations.

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov