What does the '+1.0mm' sizing mean for these bearings?

The '+1.0mm' indicates that these bearings are designed for a crankshaft that has been machined undersize by 1.0mm. This is a common practice when rebuilding an engine to correct wear or damage on the crankshaft journals.

What is a bimetal bearing construction?

Bimetal bearings, like these from King, use a strengthened aluminum alloy. This material offers good load-carrying capabilities and works well with crankshaft surfaces, making it a popular choice for performance and repair applications.

Are these bearings sold individually or as a set?

This product is a set of connecting rod bearings. You will receive multiple bearings, enough to service all the connecting rods in your specified BMW engine.

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Specifications

Brand: King Engine Bearings
Part #: CR4528SM1.0
UPC: 611500580567

King Engine Bearings BMW N42 B20/N46 B20 (Size +1.0mm) Connecting Rod Bearing Set

Name: King Engine Bearings BMW N42 B20/N46 B20 (Size +1.0mm) Connecting Rod Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-bmw-n42-b20-n46-b20-size-1-0mm-connect-t14-769867
Price: 51.79 USD
Availability: BackOrder

$51.79

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

King Engine Bearings is known for performance engine bearings. This set fits BMW N42 B20/N46 B20 engines and is sized +1.0mm.

Key Features

Fits BMW N42 B20 and N46 B20 engines.
Connecting rod bearing set.
Sized +1.0mm for use with machined crankshaft journals.
Constructed with a strengthened aluminum alloy (bimetal).

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About this part

Product Details

King Engine Bearings has a solid reputation for making reliable engine bearings, and this set for BMW N42 B20 and N46 B20 engines is no exception. If you're rebuilding or repairing the bottom end of one of these BMW engines, these connecting rod bearings are a key component to ensure proper lubrication and reduced friction between the crankshaft and connecting rods.

This particular set is a bimetal bearing, meaning it uses a strengthened aluminum alloy. This construction is chosen for its good load-carrying capacity and compatibility with crankshaft journals. Since these are sized +1.0mm, they are intended for use when the crankshaft journals have been machined down by 1.0mm to address wear or damage. Using the correct bearing size is critical for maintaining the proper oil clearance, which is essential for engine longevity.