Front Caster Rod Bushings (CRB) replace the stock flexible rubber bushings with low friction, articulating Spherical Bearings eliminating bushing deflection and reducing friction. This maintains optimum suspension geometry under load to improve braking and handling feedback. Massive 1" sized FK Racing Bearings with self lubricating Teflon liners are used to ensure maximum performance and durability. Innovative CNC machined offset bearing spacers provide +/- 2 degrees of caster adjustment. OEM arms not included. Sold as a pair. Made in the USA. Caster Rod Bushings Features: 6061-T6 Aluminum bearing housing with outer knurl 6061-T6 Aluminum offset spacers provide +/-2 degrees of caster adjustment FK 1" spherical bearings Applications: 2022+ BMW G8X (M3 and M4) Installation Instructions: SPL Front Caster Rod Bushings
This Part Fits:
| Year |
Make |
Model |
Submodel |
| 2021-2023,2025 |
BMW |
M3 |
Base |
| 2021-2023,2025 |
BMW |
M3 |
Competition |
| 2022-2023,2025 |
BMW |
M3 |
Competition xDrive |
| 2021-2026 |
BMW |
M4 |
Base |
| 2021-2026 |
BMW |
M4 |
Competition |
| 2022-2026 |
BMW |
M4 |
Competition xDrive |
| 2025 |
BMW |
M4 |
CS |
| 2023 |
BMW |
M4 |
CSL |
⚠️ California Proposition 65 Warning:
This product may expose you to chemicals known to the State of California
to cause cancer or reproductive harm.
The AutoHouse Advantage: Global sourcing power paired with specialized expertise. We utilize an expansive supply network of over 600,000 SKUs to deliver world-class components with an enthusiast’s precision.
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Price Match Guarantee:
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We are committed to providing the best value. If you find a lower advertised price from a verified vendor, we will match it. Shop with confidence knowing you’re getting the industry's lowest price.
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We reward enthusiasts who trust us with their major projects. Use these tiered codes at checkout to apply instant savings to your order:
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Fitment Guarantee:
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Avoid the headache of the wrong part. If you are unsure about compatibility, contact us first. If we verify the fitment for your vehicle via email and it doesn’t fit, we will handle the exchange at no cost to you.
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Unused items in brand-new, original packaging can be returned within 30 days. While standard refunds incur a 25% restocking fee, we will waive this fee entirely if you choose store credit or an exchange for your next upgrade.
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Exclusions:
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To ensure every customer receives brand-new, untampered components, parts that have been installed, modified, or used are non-returnable. Custom builds, special orders, and wheel/tire packages are considered final sale.
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Fitment Guarantee
Fitment guides and tools are helpful—but your car is unique! Some trims and options aren’t always listed, so if you want 100% confidence that a part will fit, our team is happy to double-check for you. We take the guesswork out of your purchase by standing behind our expertise.
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