SPL Parts Front Caster Rod Bushings (Non-Adjustable) - BMW 3/4 Series F3X

The front caster rod (also called the thrust arm) on F-chassis BMWs mounts through a soft rubber bushing that flexes under braking and hard cornering. SPL replaces it with a spherical bearing, so the front geometry stays where it belongs and the steering and brakes feel more direct. This is the fixed, non-adjustable version.

What you get

• 1 in FK spherical bearings with Teflon liners, in place of the factory rubber.
• 6061-T6 aluminum housings with a knurled outer surface.
• Sold as a pair, one per side. Made in the USA.

Good to know

• Not for xDrive cars. SPL makes a separate part for those.
• Spherical bearings pass more road noise and vibration than rubber, especially on rough pavement.

Brand: SPL Parts · Part #: SPL CRBN F3X

Ships from the brand or distributor, usually in 3-7 business days.

• Ships from the brand or distributor, usually in 3–7 business days.
• Shipping is charged at the carrier's rate, shown at checkout. Orders over 70 lb ship by freight for a flat $99.
• Unused parts can be returned within 30 days. Some items are marked no-refund in their description.

Full details are on our shipping and returns page.