What does the +0.25mm sizing mean for these bearings?

The +0.25mm sizing indicates that these bearings are intended for use when the engine's crankshaft has been machined undersize by 0.25mm during a rebuild. This ensures proper fit and oil clearance.

What is the construction of these main bearings?

These main bearings feature a bimetal construction, which means they have an aluminum base. This type of construction is chosen for its good heat dissipation properties and smooth running characteristics.

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 engine rebuild for the specified VW and Audi models.

Specifications

Brand: King Engine Bearings
Part #: MB5269AM0.25
UPC: 611500402654

King Engine Bearings VW/Audi Aku/Aqm/Cr/Cy/Jk/Jr/Ky/Ra (Size +0.25mm) Main Bearing Set

Name: King Engine Bearings VW/Audi Aku/Aqm/Cr/Cy/Jk/Jr/Ky/Ra (Size +0.25mm) Main Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-vw-audi-aku-aqm-cr-cy-jk-jr-ky-ra-size-t14-770611
Price: 35.67 USD
Availability: BackOrder

$35.67

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King Engine Bearings main bearing set for VW/Audi Aku/Aqm/Cr/Cy/Jk/Jr/Ky/Ra. Size +0.25mm.

Key Features

Fits Audi A4 Quattro, Audi A4, Audi TT, Volkswagen Beetle, Volkswagen Golf, Volkswagen Jetta, and Volkswagen Passat.
Main bearing set for VW/Audi engines with codes Aku, Aqm, Cr, Cy, Jk, Jr, Ky, Ra.
Bearings are sized +0.25mm, suitable for engines with a ground crankshaft.
Constructed with a bimetal design featuring an aluminum base.
Designed to handle engine demands during rebuilds.

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About this part

Product Details

King Engine Bearings is known for making well-built engine components, and this Main Bearing Set is no exception. If you're rebuilding the bottom end of your VW or Audi, these bearings are designed to handle the demands of the engine. They are made with a bimetal construction, meaning they have an aluminum base, which helps with heat dissipation and smooth operation.

This set is sized at +0.25mm, which is important for engines that have had their crankshaft ground undersize during a rebuild. Using the correct undersize bearing ensures proper oil clearance and helps restore the engine's performance. This particular set fits a range of VW and Audi models, including the Audi A4, Volkswagen Beetle, and Volkswagen Golf, among others.