
SPL PartsSKU: T14-SPPSPL CRB F3X
SPL Parts Adjustable Front Caster Rod Monoball Bushings - BMW 3/4 Series F3X
$413.10 Available
Ships from the brand or distributor, usually in 3–7 business days
Make sure this fits your car
Fits: BMW M240i (F22/F23), 340i (F30/F31), 440i (F32/F33/F36), M240i (G42) (B58).
1
- Shipping at real carrier rates
- 30-day returns on unused parts
- Fitment help before you buy
This is SPL's adjustable version of its spherical caster rod bushing for F-chassis BMWs. It removes the flex of the factory rubber bushing, as the fixed version does. It also adds offset spacers, so you can set front caster to suit the car.
What you get
- 1 in FK spherical bearings with self-lubricating Teflon liners.
- 6061-T6 aluminum housings, knurled on the outside.
- Machined offset spacers that allow plus or minus 4 degrees of caster adjustment.
- A pair, for both sides of the car. Made in the USA.
Good to know
- Will not fit xDrive cars.
- These are bushings only. The factory caster rods are reused.
- Expect a bit more noise and vibration than with rubber bushings.
Brand: SPL Parts · Part #: SPL CRB F3X
Ships from the brand or distributor, usually in 3-7 business days.
BMW M240i (F22/F23), 340i (F30/F31), 440i (F32/F33/F36), M240i (G42) (B58).
| Model | Chassis | Years | Engine | Fits |
|---|---|---|---|---|
| M140i | F20/F21 | 2016–2019 | Gen 1 B58 | |
| M240i | F22/F23 | 2016–2021 | Gen 1 B58 | |
| 340i | F30/F31/F34 | 2016–2019 | Gen 1 B58 | |
| 440i | F32/F33/F36 | 2017–2020 | Gen 1 B58 | |
| 540i | G30/G31 | 2017–2019 | Gen 1 B58 | |
| 740i | G11/G12 | 2016–2019 | Gen 1 B58 | |
| X3 M40i | G01 | 2018–2019 | Gen 1 B58 | |
| X4 M40i | G02 | 2019 | Gen 1 B58 | |
| 640i GT | G32 | 2018–2019 | Gen 1 B58 | |
| M340i | G20/G21 | 2019–2024 | Gen 2 B58 (TU) | |
| M440i | G22/G23/G26 | 2021–2024 | Gen 2 B58 (TU) | |
| M240i | G42 | 2022–2024 | Gen 2 B58 (TU) | |
| Z4 M40i | G29 | 2019+ | Gen 2 B58 (TU) | |
| GR Supra 3.0 | A90/A91 | 2020+ | Gen 2 B58 (TU) | |
| 540i | G30/G31 | 2020–2023 | Gen 2 B58 (TU) | |
| 740i | G11/G12 | 2020–2022 | Gen 2 B58 (TU) | |
| X3 M40i | G01 | 2020+ | Gen 2 B58 (TU) | |
| X4 M40i | G02 | 2020+ | Gen 2 B58 (TU) | |
| X5 xDrive40i | G05 | 2019–2023 | Gen 2 B58 (TU) | |
| X6 xDrive40i | G06 | 2020–2023 | Gen 2 B58 (TU) | |
| X7 xDrive40i | G07 | 2019–2022 | Gen 2 B58 (TU) | |
| 840i | G14/G15/G16 | 2019+ | Gen 2 B58 (TU) | |
| INEOS Grenadier | Station Wagon/Quartermaster | 2023+ | Gen 2 B58 (TU) | |
| M340i | G20/G21 | 2025+ | Gen 3 B58 (48V) | |
| M440i | G22/G23/G26 | 2025+ | Gen 3 B58 (48V) | |
| M240i | G42 | 2025+ | Gen 3 B58 (48V) |
Not sure? Email sales@b58racing.com with your VIN.
- Ships from the brand or distributor, usually in 3–7 business days.
- Shipping is charged at the carrier's rate, shown at checkout. Orders over 70 lb ship by freight for a flat $99.
- Unused parts can be returned within 30 days. Some items are marked no-refund in their description.
Full details are on our shipping and returns page.
Guides for this part
Pairs well with

Dinan
Dinan Front Lower Control Arm Kit - 2012-18 BMW 3/4 Series incl. 340i/440i (F3X)
Fits: M240i, 340i, 440i
$382.95Ships in 3–7 days

SPL Parts
SPL Parts Front Caster Rod Bushings (Non-Adjustable) - BMW 3/4 Series F3X
Fits: M240i, 340i, 440i
$359.10Ships in 3–7 days

Mishimoto
Mishimoto Wheel Spacers - 5x120 - 72.6 - 10 - M14 - Black
Fits: M240i, 340i, 440i
$136.95Ships in 3–7 days

H&R
H&R 2019+ BMW 330i/430i/M340i/M440i 28mm Non Adj. Sway Bar - Front
Fits: M340i, M440i, M240i
$395.10Ships in 3–7 days
