What does the '0.50mm undersize' mean for these bearings?

The '0.50mm undersize' designation means these bearings are slightly smaller than standard size. They are intended for use when the engine's crankshaft has been machined down by 0.50mm to correct wear or out-of-round conditions. Always ensure your crankshaft journal size matches the bearing specifications.

What is the material of these main bearings?

These main bearings are made from a bimetal material, utilizing an aluminum silicon base. This construction is chosen for its ability to handle engine loads and temperatures effectively, contributing to the longevity of the engine's rotating assembly.

Are these bearings sold individually or as a set?

This product is a main bearing set, meaning it includes all the necessary main bearings required for a complete installation on the specified BMW B48A20B engine.

King Engine Bearings BMW B48A20B Main Bearing Set

Specifications

Brand: King Engine Bearings
Part #: MB5785SI0.5
UPC: 611500591389

King Engine Bearings BMW B48A20B Main Bearing Set

Name: King Engine Bearings BMW B48A20B Main Bearing Set
Brand: King Engine Bearings
Price: 136.32 USD
Availability: InStock

$136.32

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Fits 2014-2022 Mini Cooper. King Engine Bearings main bearing set for BMW B48A20B engines.

Key Features

Fits 2014-2022 Mini Cooper, 2016-2018 BMW 330e, and 2017-2019 BMW 740e xDrive.
Designed for the BMW B48A20B engine application.
Features a bimetal construction with an aluminum silicon base for durability.
This is a 0.50mm undersize main bearing set, intended for use with a machined crankshaft.
From King Engine Bearings, a popular manufacturer of engine components.

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Will this fit your vehicle?

Product Details

This is a main bearing set from King Engine Bearings, specifically designed for the BMW B48A20B engine found in your 2014-2022 Mini Cooper. Main bearings are crucial components that support the crankshaft within the engine block, allowing it to spin smoothly while handling significant loads. When rebuilding or repairing your engine, replacing these bearings is a key step to ensure proper oil clearance and long-term reliability.

These bearings are constructed with a bimetal design, featuring an aluminum silicon base. This material choice helps manage heat and wear effectively, providing a solid foundation for your crankshaft. The set is precisely sized at 0.50mm undersize, which is important to note if you are machining your crankshaft to match. King Engine Bearings is a well-known name in engine components, and this set is a popular choice for those working on these specific BMW engines.