What does the +.026mm size mean for these bearings?

The +.026mm indicates that these main bearings are slightly smaller than the standard size. This is typically used when the engine's crankshaft journals have been machined down by 0.026mm to account for wear, ensuring proper clearance for oil flow and bearing function.

What is the XP series overlay?

The XP series refers to King Engine Bearings' line of high-performance bearings. The overlay is a specialized material applied to the bearing surface, designed for improved wear resistance and compatibility with different oil types.

Are these bearings suitable for a performance build?

Yes, the XP series bearings are designed with performance in mind, offering robust construction and wear resistance. They are built to handle the demands of both performance applications and everyday driving.

Specifications

Brand: King Engine Bearings
Part #: MB639XP.026
UPC: 611500624230

King Engine Bearings Audi Cepa/Cepb (Size +.026mm) Main Bearing Set

Name: King Engine Bearings Audi Cepa/Cepb (Size +.026mm) Main Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-audi-cepa-cepb-size-026mm-main-bearing-t14-771074
Price: 160.08 USD
Availability: BackOrder

$160.08

On Backorder

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

Key Features

This is a +.026mm undersize main bearing set for Audi CEPA/CEPB engines.
Features King's XP series high-performance overlay for improved wear resistance.
Designed to compensate for wear on the crankshaft journals when machined to the correct size.
Well-built construction suitable for performance and daily driving applications.
Helps maintain proper oil pressure and engine longevity.

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About this part

Product Details

The +.026mm undersize on these main bearings is a specific measurement that matters when you're rebuilding an Audi CEPA or CEPB engine. These bearings are designed to replace the original main bearings, and the slight undersize is intended to compensate for wear on the crankshaft journals. King Engine Bearings uses a specialized overlay material that's built to handle the demands of performance and daily driving alike. This overlay is designed to be compatible with various oil types and provides a solid foundation for your engine's rotating assembly.

When you're putting an engine back together, especially one with a few miles on it, getting the bearing clearances just right is critical for oil pressure and longevity. The .026mm undersize means these are meant for a crankshaft that has been machined down to match this specific size. King's XP series bearings are known for their robust construction, featuring a high-performance overlay that offers good wear resistance. This helps ensure that your engine runs smoothly and maintains proper oil flow under various operating conditions.