What does the '1.00' size designation mean for these bearings?

The '1.00' in the part number indicates that these main bearings are 1.00mm undersize. This means they are intended for use when the crankshaft journals have been machined down by 1.00mm during an engine rebuild.

What is the construction of these King Engine Bearings?

These bearings are constructed with a bimetal design, featuring an aluminum base. This type of construction is common for main bearings as it offers good load-carrying capacity and compatibility with crankshaft surfaces.

Are these bearings a direct replacement for all BMW M20, M50, and M52 engines?

This set is designed for specific BMW M20, M50, and M52 engine codes. It's important to verify your exact engine code and confirm the 1.00mm undersize specification matches your crankshaft condition before purchasing.

Specifications

Brand: King Engine Bearings
Part #: MB798AM1.0
UPC: 611500183515

King Engine Bearings BMW M20B20-23-25-27 / M50B25 / M52B20-25-28 (Size 1.00) Main Bearing Set

Name: King Engine Bearings BMW M20B20-23-25-27 / M50B25 / M52B20-25-28 (Size 1.00) Main Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-bmw-m20b20-23-25-27-m50b25-m52b20-25-2-t14-495104
Price: 107.03 USD
Availability: BackOrder

$107.03

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King Engine Bearings main bearing set for BMW M20, M50, and M52 engines. Size 1.00. A well-built replacement for your engine rebuild.

Key Features

Fits BMW M20B20-23-25-27, M50B25, and M52B20-25-28 engines.
Features a bimetal construction with an aluminum base.
This set is 1.00mm undersize, intended for use with a machined crankshaft.
A popular choice for BMW engine rebuilds.

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About this part

Product Details

If you're rebuilding the engine in your BMW, getting the main bearings right is crucial for smooth operation and longevity. This main bearing set from King Engine Bearings is designed for a range of BMW M20, M50, and M52 engines, including popular models like the 325i, 328is, and 525i.

These bearings feature a bimetal construction with an aluminum base, offering a solid foundation for your crankshaft. They are precisely sized at 1.00mm undersize, which is important to note if you're machining your crankshaft to match. King Engine Bearings is a well-known name in the industry, and this set is a popular choice for those looking to restore their engine's internal components.

When you're putting an engine back together, using reliable internal parts makes all the difference. This set is built to meet the demands of these specific BMW engines, helping to ensure your rebuild is done right.