
Kelford Cams Valve Spring Kit - B58
Ships from the brand or distributor, usually in 3–7 business days
Make sure this fits your car
Fits: BMW M140i (F20), M240i (F22), 340i (F30), 440i (F32), 540i (G30), 740i (G11), X3/X4 M40i (G01/G02, 2018–2019), M340i (G20), M440i (G22), M240i (G42), Z4 M40i (G29), 540i (G30, 2020+), 740i (G11, 2020+), X3/X4 M40i (2020+); Toyota GR Supra 3.0 (A90/A91). Confirm your exact car with us before ordering.
- Free US shipping over $250
- 30-day returns on unused parts
- Fitment help before you buy
MK5 Supra Valve Springs. B58 Engine - 3.0L inline 6. High performance, progressively wound PACALOY beehive valve spring with titanium retainers. This kit was specifically engineered to match our Stage 1, Stage 2 and Stage 3 Camshafts for ultimate quality, performance and reliability. 90lb seat pressure at 36.5mm installed height. 193lb at 11.0mm valve lift. Spring coil bind height at 23.6mm.
Fits: BMW M140i (F20), M240i (F22), 340i (F30), 440i (F32), 540i (G30), 740i (G11), X3/X4 M40i (G01/G02, 2018–2019), M340i (G20), M440i (G22), M240i (G42), Z4 M40i (G29), 540i (G30, 2020+), 740i (G11, 2020+), X3/X4 M40i (2020+); Toyota GR Supra 3.0 (A90/A91). Confirm your exact car with us before ordering.
Brand: Kelford Cams · Part #: KVS58-BT
BMW M140i (F20), M240i (F22), 340i (F30), 440i (F32), 540i (G30), 740i (G11), X3/X4 M40i (G01/G02, 2018–2019), M340i (G20), M440i (G22), M240i (G42), Z4 M40i (G29), 540i (G30, 2020+), 740i (G11, 2020+), X3/X4 M40i (2020+); Toyota GR Supra 3.0 (A90/A91). Confirm your exact car with us before ordering.
| 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 | |
| M340i | G20/G21 | 2019+ | Gen 2 B58 (TU) | |
| M440i | G22/G23/G26 | 2021+ | Gen 2 B58 (TU) | |
| M240i | G42 | 2022+ | 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) |
Not sure? Email sales@b58racing.com with your VIN.
- Ships from the brand or distributor, usually in 3–7 business days.
- Free US shipping on orders over $250.
- 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.
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