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

The +0.25mm sizing indicates that these bearings are designed for a crankshaft that has been machined down by 0.25mm. This is a common practice during engine rebuilding to correct wear or damage on the original crankshaft journals.

What is the King XP material?

King's XP material is a high-performance overlay applied to the bearing surface. It's designed to offer enhanced durability and reduced friction, helping to protect the bearings and crankshaft under demanding conditions.

Do these bearings come with assembly lube?

This set includes the main bearings only. It is recommended to use a quality engine assembly lubricant separately to ensure proper lubrication during the initial startup of your rebuilt engine.

Specifications

Brand: King Engine Bearings
Part #: MB5779XP0.25
UPC: 611500625039

King Engine Bearings Audi CDaa/CDha/Chha/Chhb/Cjxa/Cjxb (Size +0.25mm) Main Bearing Set

Name: King Engine Bearings Audi CDaa/CDha/Chha/Chhb/Cjxa/Cjxb (Size +0.25mm) Main Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-audi-cdaa-cdha-chha-chhb-cjxa-cjxb-siz-t14-770958
Price: 91.48 USD
Availability: BackOrder

$91.48

On Backorder

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Key Features

Main bearing set for Audi CDaa, CDha, Chha, Chhb, Cjxa, and Cjxb engines.
This set is +0.25mm undersize, intended for use with a machined crankshaft.
Features King's XP material overlay for improved durability and reduced friction.
Supports the crankshaft within the engine block for smooth rotation.

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About this part

Product Details

If you're rebuilding the bottom end of your Audi engine, specifically models with the CDaa, CDha, Chha, Chhb, Cjxa, or Cjxb engine codes, a fresh set of main bearings is crucial. These bearings sit between the crankshaft and the engine block, supporting the rotating assembly and ensuring smooth operation. This set from King Engine Bearings is built to handle the demands of a rebuilt engine.

This particular set is sized at +0.25mm, meaning it's designed for crankshafts that have been machined down by 0.25mm during the rebuilding process. King uses their XP material, which is a high-performance overlay that offers improved durability and reduced friction compared to standard bearings. This helps protect your investment and ensures the longevity of your engine rebuild.

When installing these bearings, remember to always clean the bearing saddles and crankshaft journals thoroughly. It's also a good idea to use a quality assembly lube to help protect the bearing surfaces during initial startup. Always refer to your vehicle's specific service manual for detailed installation procedures and torque specifications.