What does 0.25mm undersize mean for these bearings?

An undersize bearing, like this 0.25mm set, is used when the crankshaft journals have been machined down by that amount. This is common during engine rebuilds to clean up wear or damage. Using the correct undersize bearing restores the proper oil clearance.

What are these bearings made of?

These bearings are made from a bimetal material, which has an aluminum silicon base. This type of construction is chosen for its ability to handle engine loads and provide good wear resistance.

Are these bearings sold individually or as a set?

This is a main bearing set, meaning it includes all the necessary bearings to replace the main bearings for the crankshaft in the specified Audi and Volkswagen engines.

Specifications

Brand: King Engine Bearings
Part #: MB5660SI0.25
UPC: 611500538124

King Engine Bearings Audi/VW Bbz/CAxa/CAva/Azd (Size +0.25mm) Main Bearing Set

Name: King Engine Bearings Audi/VW Bbz/CAxa/CAva/Azd (Size +0.25mm) Main Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-audi-vw-bbz-caxa-cava-azd-size-0-25mm--t14-770889
Price: 78.67 USD
Availability: BackOrder

$78.67

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Fits 2013-2017 Volkswagen Tiguan. King Engine Bearings main bearing set, 0.25mm undersize, for BBZ/CAXA/CAVA/AZD engines.

Key Features

Fits 2013-2017 Volkswagen Tiguan and 2012-2013 Audi A3.
Designed for BBZ, CAXA, CAVA, and AZD engine codes.
Main bearing set is 0.25mm undersize, for use with machined crankshafts.
Constructed with a bimetal (aluminum silicon base) material for durability.
Supports the crankshaft and maintains proper oil clearance.

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About this part

Product Details

This is a King Engine Bearings Main Bearing Set, specifically sized at 0.25mm undersize, designed for the 2013-2017 Volkswagen Tiguan models equipped with BBZ, CAXA, CAVA, or AZD engines. Main bearings are crucial components that support the crankshaft within the engine block, allowing it to rotate smoothly while handling significant loads. When rebuilding or repairing an engine, especially if the crankshaft has been machined, using bearings of the correct size is essential for proper oil clearance and engine longevity.

This particular set is constructed from a bimetal material, featuring an aluminum silicon base. This construction offers a good balance of strength and wear resistance, suitable for the demands of daily driving and typical engine operation. Because these bearings are 0.25mm undersize, they are intended for use when the crankshaft journals have been ground down by 0.25mm to remove imperfections or wear. Using the correct undersize bearing ensures the proper oil clearance is re-established between the crankshaft and the main bearing, which is vital for lubrication and preventing premature wear.