What does the 0.025 inch sizing mean for these bearings?

The '0.025' in the part number indicates that these bearings are 0.025 inches undersize. This means they are intended for use when the crankshaft journals have been machined down by that specific amount to correct wear or achieve proper clearances.

What is the benefit of the lead-free composite material?

The lead-free composite material is an environmentally safe option that is ideal for medium-load engines. It helps ensure proper bearing function while meeting environmental standards.

What is the typical application for these bearings?

These bearings are commonly used in engine rebuilds for BMW vehicles equipped with the N20 or B20 engine. They are suitable for medium-load applications where precise oil clearance is critical.

Specifications

Brand: King Engine Bearings
Part #: MB5784SI0.25
UPC: 611500591303

King Engine Bearings BMW N20/B20 Crankshaft Main Bearings

Name: King Engine Bearings BMW N20/B20 Crankshaft Main Bearings
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-bmw-n20-b20-crankshaft-main-bearings-t14-211029
Price: 172.68 USD
Availability: InStock

$172.68

In Stock

King Engine Bearings crankshaft main bearings for BMW N20/B20 engines. Lead-free composite for medium-load engines.

Key Features

This product is a set of crankshaft main bearings.
Features a lead-free, environmentally safe composite material.
Ideal for medium-load engines.
Constructed with a bi-metal aluminum material.
These bearings are 0.025 inches undersize.
Fits a wide range of BMW vehicles with N20/B20 engines.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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About this part

Product Details

This set includes the crankshaft main bearings you need for your BMW N20 or B20 engine rebuild. King Engine Bearings specializes in these critical components, aiming to supply well-built bearings for your engine. These bearings are designed for medium-load engines and feature a lead-free, environmentally safe composite material.

The bi-metal aluminum construction offers a solid foundation for your crankshaft, helping to ensure smooth operation and proper oil clearance. King has been focused on engine bearings since 1960, building a wide range of products to meet the needs of various engine builds. This particular set is 0.025 inches undersize, which is important to note for your machine shop and assembly process.

These bearings fit a range of BMW models, including the 320i, 328i, 428i, and 528i, among others. Always ensure your crankshaft journals are machined to the correct undersize specification before installation.