-10%
SPL adjustable front caster rod bushings for 2021+ BMW G8X M3 and M4
SPL CRB G8X front caster rod bushings with 1 inch FK spherical bearings
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SPL Parts 2021+ BMW G8X(Except M2) Caster Bushings (Adjustable)

SPL Parts
SPPSPL CRB G8X
SPL CRB G8X
Suspension Arm Bushings
12 Units In Stock - Ships Next Business Day
$ 459.00 $ 413.10
$ 413.10

SKU: SPL CRB G8X


SPL Parts 2021+ BMW G8X (Except M2) Adjustable Front Caster Rod Bushings

Improve suspension geometry, braking stability, and handling precision on your 2021+ BMW G8X (M3/M4) with SPL Parts Adjustable Front Caster Rod Bushings. These high-performance bushings replace the soft factory rubber with low-friction, articulating spherical bearings, eliminating deflection and maintaining optimum alignment under load.

Featuring massive 1" FK Racing Bearings with self-lubricating Teflon liners and innovative CNC-machined offset spacers, these bushings provide up to ±2 degrees of caster adjustment. Proudly made in the USA, they deliver superior durability and performance for street and track use.

Key Features

  • FK 1" Spherical Bearings – Low friction with self-lubricating Teflon liners
  • ±2° Caster Adjustment – CNC-machined offset spacers for precise tuning
  • 6061-T6 Aluminum Housing – Lightweight, strong, and corrosion-resistant
  • Eliminates Deflection – Maintains suspension geometry under load
  • Improved Braking & Handling – Better feedback and stability
  • Made in the USA – Engineered for maximum performance and reliability

Specifications

Detail Value
Brand SPL Parts
Type Adjustable Front Caster Rod Bushings
Vehicle 2021+ BMW G8X (M3/M4, except M2)
Adjustment Range ±2 degrees caster
Bearing Size 1" FK Spherical Bearings
Material 6061-T6 Aluminum
Country of Origin United States
Warranty SPL Parts Limited Warranty

Whats Included

  • Pair of SPL Adjustable Front Caster Rod Bushings
  • All Necessary Hardware
  • Installation Instructions

Product Notes

  • Designed for 2021+ BMW G8X M3/M4 models (except M2)
  • Professional installation and alignment are strongly recommended
  • OEM control arms not included

This Part Fits

Year Range Make Model Notes
2021+ BMW M3 / M4 (G8X) Excludes M2

Why Choose SPL Parts?

  • Leading manufacturer of high-performance suspension components for BMW
  • Precision-engineered parts with race-proven technology
  • Focus on reducing deflection and improving geometry for better handling
  • Proudly made in the USA with a strong reputation for quality

Frequently Asked Questions

  • Q: Will these fit my 2023 BMW M4?
  • A: Yes. They are designed for 2021+ BMW G8X M3/M4 models (except M2).
  • Q: How much caster adjustment do they provide?
  • A: Up to ±2 degrees of caster adjustment via the offset spacers.
  • Q: Is professional installation required?
  • A: Yes. Professional installation and a full alignment are critical for safety and performance.
  • Q: Do I need to replace my control arms?
  • A: No. These are direct replacements for the bushings in your existing arms.

Shipping & Handling

  • Method: UPS Ground or FedEx Ground
  • Availability: In stock – ships same or next business day
  • Packaging: Secure SPL Parts retail packaging

Request For Information

Have questions about SPL Parts 2021+ BMW G8X(Except M2) Caster Bushings (Adjustable)? Fill out the form below and we'll get back to you by the next business day.
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