SPL Parts BMW E9X/E8X/F8X Adjustable Front Caster Rod Monoball Bushings
SPL Parts BMW E9X/E8X/F8X Adjustable Front Caster Rod Monoball Bushings is backordered and will ship as soon as it is back in stock.
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SPL Parts BMW E9X/E8X/F8X Adjustable Front Caster Rod Monoball Bushings (SPL CRB E9X) is designed for caster adjustment with monoball bushings on the listed BMW E90 / E92 M3; BMW F87 M2 / F80 M3 / F82 M4 applications.
Adjustable front caster rod monoball bushings use offset bearing spacers to change caster while retaining the original caster rods. Factory arms are not included.
Specifications and fitment
| Brand | SPL Parts |
|---|---|
| Manufacturer part number | SPL CRB E9X |
| Application | BMW E90 / E92 M3; BMW F87 M2 / F80 M3 / F82 M4 |
| Function | Caster adjustment with monoball bushings |
| Supplied as | Pair |
Setup and ordering notes
Does not fit xDrive/AWD vehicles. OEM caster rods are not included. Offset spacers provide caster adjustment; confirm the required geometry with the installer.
Product FAQs
Is this a complete caster rod or a bushing kit?
This is a bushing conversion for the existing caster rods. It replaces the rubber bearing interface; complete replacement rods are not included. This version uses offset spacers for caster adjustment.
How are CRB E9X and CRBN E9X caster rod bushings different?
CRB E9X uses offset spacers for caster adjustment. CRBN E9X is the fixed-position version. Both are bushing conversions for the original rods rather than complete replacement tension rods; follow the stated drivetrain restrictions.
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Pit Garage is an automotive service and performance parts shop in the Los Angeles area. Contact us with your chassis, drivetrain, ride height and installed suspension if you need help selecting the correct SPL part.

