King Engine Bearings MB7779XPC0.25 BMW B58B30A Coated Performance Main Bearing Set, 0.25 mm

King Engine Bearings BMW B58B30A (Size 0.25) Coated Performance Main Bearing Set

The King Engine Bearings MB7779XPC0.25 is a coated performance main bearing set designed for BMW B58B30A engines requiring a 0.25 mm undersize bearing specification. Built for precision engine rebuilding and performance applications, this main bearing set supports reliable crankshaft operation and consistent bearing performance under demanding conditions.

Each bearing uses King Engine Bearings’ coated performance construction to help improve wear resistance, load handling, and durability in high-stress engine environments. The set is intended for properly prepared crankshafts and should be installed by a qualified technician using the engine manufacturer’s service procedures, clearances, and torque specifications. Verify crankshaft journal sizing and application details before installation.

King Engine Bearings part number MB7779XPC0.25 is designed for select BMW vehicles equipped with the B58B30A engine, including the 2016 BMW 340i, 340i xDrive, and 740i; 2017 BMW 340i, 340i xDrive, 740i xDrive, M240i, M240i xDrive, 340i GT xDrive, and 440i. Confirm the engine code, model year, crankshaft condition, and required bearing size before ordering. This product is supplied as one complete main bearing set.

Features:

• Application: Designed for BMW B58B30A engine applications requiring 0.25 mm undersize main bearings
• Coated Construction: Performance coating helps support wear resistance and durability under demanding operating conditions
• Precision Fit: Manufactured for accurate crankshaft-to-bearing fit when used with properly machined and inspected components
• Engine Rebuild Support: Suitable for professional engine rebuilding, repair, and performance applications

Fitments:
2016 BMW 340i Base
2016 BMW 340i xDrive Base
2016 BMW 740i Base
2017 BMW 340i Base
2017 BMW 340i GT xDrive Base
2017 BMW 340i xDrive Base
2017 BMW 440i Base
2017 BMW 440i Gran Coupe Base
2017 BMW 440i xDrive Base
2017 BMW 440i xDrive Gran Coupe Base
2017 BMW 540i Base
2017 BMW 540i xDrive Base
2017 BMW 740i Base
2017 BMW 740i xDrive Base
2017 BMW M240i Base
2017 BMW M240i xDrive Base
2018 BMW 340i Base
2018 BMW 340i GT xDrive Base
2018 BMW 340i xDrive Base
2018 BMW 440i Base
2018 BMW 440i Gran Coupe Base
2018 BMW 440i xDrive Base
2018 BMW 440i xDrive Gran Coupe Base
2018 BMW 540i Base
2018 BMW 540i xDrive Base
2018 BMW 640i xDrive Gran Turismo Base
2018 BMW 740i Base
2018 BMW 740i xDrive Base
2018 BMW M240i Base
2018 BMW M240i xDrive Base
2018 BMW X3 M40i
2019 BMW 340i GT xDrive Base
2019 BMW 440i Base
2019 BMW 440i Gran Coupe Base
2019 BMW 440i xDrive Base
2019 BMW 440i xDrive Gran Coupe Base
2019 BMW 540i Base
2019 BMW 540i xDrive Base
2019 BMW 640i xDrive Gran Turismo Base
2019 BMW 740i Base
2019 BMW 740i xDrive Base
2019 BMW M240i Base
2019 BMW M240i xDrive Base
2019 BMW X3 M40i
2019 BMW X4 M40i
2019 BMW X5 xDrive40i
2019 BMW X7 xDrive40i
2020 BMW 440i Base
2020 BMW 440i Gran Coupe Base
2020 BMW 440i xDrive Base
2020 BMW 440i xDrive Gran Coupe Base
2020 BMW 540i Base
2020 BMW 540i xDrive Base
2020 BMW 740i Base
2020 BMW 740i xDrive Base
2020 BMW 745e xDrive Base
2020 BMW 840i Base
2020 BMW 840i Gran Coupe Base
2020 BMW 840i xDrive Base
2020 BMW 840i xDrive Gran Coupe Base
2020 BMW M240i Base
2020 BMW M240i xDrive Base
2020 BMW X5 sDrive40i
2020 BMW X5 xDrive40i
2020 BMW X6 sDrive40i
2020 BMW X6 xDrive40i
2020 BMW X7 xDrive40i
2021 BMW 540i Base
2021 BMW 540i xDrive Base
2021 BMW 740i Base
2021 BMW 740i xDrive Base
2021 BMW 745e xDrive Base
2021 BMW 840i Base
2021 BMW 840i Gran Coupe Base
2021 BMW 840i xDrive Base
2021 BMW 840i xDrive Gran Coupe Base
2021 BMW M240i Base
2021 BMW M240i xDrive Base
2021 BMW X5 sDrive40i
2021 BMW X5 xDrive40i
2021 BMW X6 sDrive40i
2021 BMW X6 xDrive40i
2021 BMW X7 xDrive40i
2022 BMW 540i Base
2022 BMW 540i xDrive Base
2022 BMW 740i Base
2022 BMW 740i xDrive Base
2022 BMW 745e xDrive Base
2022 BMW 840i Base
2022 BMW 840i Gran Coupe Base
2022 BMW 840i xDrive Base
2022 BMW 840i xDrive Gran Coupe Base
2022 BMW X5 sDrive40i
2022 BMW X5 xDrive40i
2022 BMW X6 xDrive40i
2022 BMW X7 xDrive40i
2023 BMW 540i Base
2023 BMW 540i xDrive Base
2023 BMW 840i Base
2023 BMW 840i Gran Coupe Base
2023 BMW 840i xDrive Base
2023 BMW 840i xDrive Gran Coupe Base
2023 BMW X5 sDrive40i
2023 BMW X5 xDrive40i
2023 BMW X6 xDrive40i
2024 BMW 840i Base
2024 BMW 840i Gran Coupe Base
2024 BMW 840i xDrive Base
2024 BMW 840i xDrive Gran Coupe Base
2025 BMW 840i Base
2025 BMW 840i Gran Coupe Base
2025 BMW 840i xDrive Base
2025 BMW 840i xDrive Gran Coupe Base
2026 BMW 840i Base
2026 BMW 840i Gran Coupe Base
2026 BMW 840i xDrive Base
2026 BMW 840i xDrive Gran Coupe Base

Air Freight Prohibited: false
Not Carb Approved: false
Ltl Freight Required: false
Prop 65: Unknown
Part Type: automotive
Epa: N/A
Carb Acknowledgement Required: false
Regular Stock: t
Units Per Sku: 1