SPL Parts adjustable front caster rod spherical bushings replace the large hydraulic OEM caster rod bushing with a 6061-T6 billet aluminum housing carrying an FK USA PTFE-lined spherical bearing, retained by zinc plated steel snap rings. Removing the rubber eliminates the deflection and bind that the factory bushing generates under braking, steering, and acceleration load, sharpening steering and brake feel and letting the front suspension articulate without storing and releasing energy like a rubber spring. Because the bushing is adjustable, front caster can be dialed in for more steering centering torque and more camber gain at steering angle, or to shift the wheel in side view and clear tire rub at the bumper or fender. On xDrive cars the spherical bearing also curbs the front wheel hop that follows a hard launch on grippy tires. Expect some additional road noise and impact harshness over sharp bumps, the normal trade for removing an NVH bushing.
Specifications
| Type | Adjustable front caster rod spherical bushings (SPL Parts) |
| Position | Front |
| Adjustment | Caster |
| Material | 6061-T6 billet aluminum housing, FK USA PTFE-lined spherical bearing, zinc plated steel snap rings |
| Drivetrain | Fits xDrive (AWD) and sDrive (RWD) |
| OEM Replacement | 31106894675, 31106894676 |
| Part Number | SPL CRB G2X |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2021-2026 | BMW | 2 Series (G42) | 220, 230, M240 |
| 2019-2026 | BMW | 3 Series (G20/G21) | 320, 330, M340 |
| 2020-2026 | BMW | 4 Series (G22/G23) | 420, 430, M440 |
Shipping
- Orders placed before 3 PM ET typically ship the same business day. Larger items ship within 1 to 3 business days.
- Standard, expedited, and overnight options at checkout.
- Oversized items ship by freight and take longer.
- Special order items follow a lead time we confirm with you individually before the order is committed.
- Backordered items ship as soon as stock lands. Lead times are manufacturer estimates and can change. Contact us for current ETAs.
- Need to cancel? Email us right away. Cancellations are not guaranteed once an order is in process. In-stock orders cancel free before they ship; a 6% fee applies only to confirmed backorders and special orders.
- International orders: prices do not include VAT, duties, or import fees. Your country charges these at import and they are the buyer’s responsibility.
Returns
- 30 days from delivery to request and ship back a return on new, uninstalled items in original packaging with all hardware.
- Standard returns: 8% restocking fee on the item price before tax and shipping. Shipping is not refunded in either direction. All waived if the item is defective or we made the error.
- Fitment guaranteed: select your vehicle above, or confirm fitment with us in writing before you order. If the part shows as a fit and it is wrong, the return is on us, even after installation. Otherwise, installed or used parts cannot be returned.
- Final sale: special orders, coilovers, electronics, engine internals, turbochargers, superchargers and turbo kits, unless defective or we sent the wrong item.
- Product images may be representative. The SKU and specifications in the listing are what ships.
- Email us for return authorization before shipping anything back.
Full details: Shipping Policy · Returns & Refunds · Warranty
