BMW B48 Valve guides

Our HD bronze valve guides for the BMW B48 engine are engineered for high-performance and boosted applications where OEM materials fall short. These replace the factory BMW valve guides in the cylinder head (intake and exhaust guide assemblies). Built to handle increased temperatures, higher valve spring pressures, and sustained RPM, these guides provide improved stability and durability under demanding conditions. Machined from high-quality bronze alloy, they offer better heat dissipation and reduced wear compared to factory components. The result is more consistent valve control, improved sealing, and extended service life in performance-built engines. Ideal for upgraded street builds, track use, and higher-boost setups, these guides are a key reliability upgrade for the B48 platform. Precision-built for long-term performance under load. Sold as a complete set: 8x Intake Guides 8x Exhaust Guides Installation requires the expertise of an engine builder. BMW B48 Applications: 1 Series 2016-2019 F20 120i / 125i 2019-2023 F40 118i / 120i / 128ti / 135i / M135i 2024-Present F70 120 / M135i 2 Series 2014-2021 F22/F23 218i / 220i / 230i 2014-2017 F45 220 / 225i 2021-Present G42 218i / 220i / 230i 2021-Present U06 223i 2020-2024 F44 218i / 220i / 228i / M235i 2025-Present F74 M235 3 Series 2015-2019 F30/F31/F34 320i / 330i / 330e 2018-Present G20/G21 318i / 320i / 330i / 330e 4 Series 2016-2019 F32/F33/F36 420i / 430i 2020-Present G22/G23/G26 420i / 430i / 430e 5 Series 2017-Present G30/G31 520i / 530i / 530e 6 Series 2017-Present G32 630i 7 Series 2015-2022 G11/G12 730i / 730Li / 740e / 740Le X1 Series 2015-2022 F48 sDrive18i / sDrive20i / xDrive20i / 25i / xDrive25i / 28i 2022-Present U11 sDrive18i / xDrive20i / xDrive28i / M35i X2 Series 2018-2023 F39 sDrive18i / sDrive20i / xDrive20i / 25i / xDrive25i / 28i / M35i 2023-Present U10 xDrive28i / M35i X3 Series 2017-2024 G01 sDrive20i / xDrive20i / xDrive30i / xDrive30e 2025-Present G45 xDrive20e / xDrive30e X4 Series 2018-Present G02 xDrive20i / xDrive30i X5 Series 2018-Present G05 xDrive25i / sDrive25i Z Series 2018-Present G29 Z4 sDrive20i / sDrive30i Toyota B48 Applications: A90 / A91 Supra 2019-Present J29/DB82/DB22 Supra 2020-Present GR Supra 2.0 MINI B48 Applications: MINI Hatch [F55/F56/F57] 2014-Present Cooper S 2015-Present John Cooper Works (JCW) MINI Clubman [F54] 2015-Present Cooper S 2016-Present John Cooper Works (JCW) MINI Convertible [F57] 2016-Present Cooper S 2016-Present John Cooper Works (JCW)