SPL Parts SPL CRBN E9X Spherical Front Caster Rod Bushings for 2006-13 BMW 3

Vehicle Fitment

• 2006-2013 BMW 3-Series (E90/E91/E92/E93) & 2008-2013 BMW 1-Series (E82/E88) - all trims / various engines

Features

• Non-adjustable spherical bearing caster rod bushings replacing OEM rubber units
• 1" FK Racing spherical bearing with Teflon liner for reduced friction and deflection
• CNC-machined 6061-T6 aluminum housing ensures durability and precision
• Designed to maintain suspension geometry under load and improve handling feedback
• Direct-fit for E9X/E8X BMW front caster rods, bolt-in upgrade
• Ideal for performance street use and track applications where standard bushings flex too much
• Eliminates unwanted bushing compliance for sharper turn-in and more consistent camber behavior
• Manufactured in the USA; sold as a pair; for racing/sport driving environments

Specifications

• Part Number: SPL CRBN E9X
• Position: Front caster rod bushings, left + right (pair included)
• Material: 6061-T6 aluminum housing, FK 1" spherical bearing with Teflon liner
• Adjustment: Non-adjustable design (fixed caster rod bushings)
• Compatible Platforms: BMW E90/E91/E92/E93 (06-13 3-Series), BMW E82/E88 (08-13 1-Series) :contentReference[oaicite:1]{index=1}
• Installation torque specs: Caster rod chassis nut - 81 ft-lbs; ball-joint nut - 110 ft-lbs :contentReference[oaicite:2]{index=2}
• Usage Note: Due to spherical bearing nature, increased noise/harshness may occur compared to stock rubber bushings :contentReference[oaicite:3]{index=3}

Included Components

• 2x Spherical front caster rod bushing units (left + right)
• Installation instructions PDF

Product Description

Upgrade the front suspension geometry of your BMW 3-Series (E9X) or 1-Series (E8X) with the SPL CRBN E9X spherical caster rod bushings from SPL Parts. This direct-fit kit replaces the soft OEM rubber bushings with high-precision spherical bearing units and CNC-machined aluminum housings. The result is a dramatic reduction in bushing deflection under load, sharper steering feedback, improved stability, and better tire contact when driving aggressively or on the track.

Note that while the design is non-adjustable (fixed caster rod bushings), it is optimized for high-performance use and preserves the factory caster geometry while eliminating unwanted movement. Because the spherical bearings are firmer than rubber, expect an increase in road noise and suspension harshness which may make this part better suited for performance-oriented drivers. Fitment confirmed through 2013; 2014+ models or 2015+ (F-series) are **not** covered by this listing.