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

The '+0.25mm' indicates that these bearings are slightly larger than standard size. This is typically used when the engine's crankshaft journals have been machined down by 0.25mm to remove wear or imperfections. Using an undersize bearing ensures a proper, snug fit on the machined journals.

What are these bearings made of?

These bearings feature a bimetal construction, which means they have an aluminum base. This type of material is commonly used in engine bearings for its good load-carrying capacity and compatibility with crankshaft surfaces.

Do these bearings come with installation hardware?

This product is a main bearing set and typically does not include additional installation hardware like main cap bolts. It's recommended to refer to the manufacturer's instructions or consult a service manual for any specific hardware requirements or recommended installation procedures.

Specifications

Brand: King Engine Bearings
Part #: MB5070AM1.25
UPC: 611500160356

King Engine Bearings Audi/VW Ck/Cy/Ha/Jk/Ky/Rp/Zf/Aeb (Size +0.25mm) Main Bearing Set

Name: King Engine Bearings Audi/VW Ck/Cy/Ha/Jk/Ky/Rp/Zf/Aeb (Size +0.25mm) Main Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-audi-vw-ck-cy-ha-jk-ky-rp-zf-aeb-size--t14-770477
Price: 33.98 USD
Availability: BackOrder

$33.98

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King Engine Bearings main bearing set for Audi/VW CK, CY, HA, JK, KY, RP, ZF, AEB. Size +0.25mm. Fits a wide range of vehicles.

Key Features

Fits Audi 4000 (1980-1987), Volkswagen Golf (1985-1997), Volkswagen Jetta (1980-1997), and many other Audi/VW models.
Main bearing set is sized +0.25mm, suitable for use with machined crankshaft journals.
Constructed with a bimetal design featuring an aluminum base for reliable performance.
Designed for Audi/VW engine codes CK, CY, HA, JK, KY, RP, ZF, and AEB.
King Engine Bearings is a popular choice for engine rebuilding and replacement parts.

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About this part

Product Details

What you get here is a main bearing set from King Engine Bearings, specifically sized at +0.25mm. These bearings are built with a bimetal construction, meaning they have an aluminum base, which is a common and well-tested material for engine bearings. This set is designed to fit a variety of Audi and Volkswagen engines, including those with codes like CK, CY, HA, JK, KY, RP, ZF, and AEB. This means they can be a direct replacement for many older Audi and VW models, such as the Audi 4000, Volkswagen Golf, and Volkswagen Jetta.

When you're rebuilding an engine or replacing worn-out bearings, getting the right size is crucial. This set is +0.25mm, which is an undersize often used when the crankshaft journals have been machined down to clean up imperfections or wear. King Engine Bearings is a well-known name in the engine component world, and their bearings are a solid option for many engine builds. They are designed to handle the stresses of normal engine operation, helping to ensure smooth rotation of the crankshaft within the engine block.