What does '1.0mm undersize' mean for these bearings?

This means the bearings are designed to fit a crankshaft that has been machined down by 1.0mm. This is a common practice during engine rebuilds to correct wear or damage on the crankshaft journals.

What is the material of these main bearings?

These bearings feature a bimetal construction with an aluminum base. This type of material is well-suited for handling the high loads and operating temperatures found in an engine's main bearing journals.

Are these bearings a direct replacement for all Audi 5000 models?

This set is specifically for the 1979-1981 Audi 5000 models equipped with the AAN, AAR, AAT, RT, HY, or NG engine codes. It's important to confirm your engine code before purchasing.

Specifications

Brand: King Engine Bearings
Part #: MB601AM1.0
UPC: 611500175749

King Engine Bearings Audi Aan/Aar/Aat/Rt/Hy/Ng (Size +1.0mm) Main Bearing Set

Name: King Engine Bearings Audi Aan/Aar/Aat/Rt/Hy/Ng (Size +1.0mm) Main Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-audi-aan-aar-aat-rt-hy-ng-size-1-0mm-m-t14-771052
Price: 65.69 USD
Availability: BackOrder

$65.69

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Fits 1979-1981 Audi 5000. King Engine Bearings main bearing set, 1.0mm undersize, for AAN/AAR/AAT/RT/HY/NG engines. Essential for engine rebuilds.

Key Features

Fits 1979-1981 Audi 5000.
Main bearing set for Audi AAN, AAR, AAT, RT, HY, and NG engines.
Bearings are 1.0mm undersize, intended for use with a machined crankshaft.
Constructed with a bimetal aluminum base for durability.
Essential component for engine rebuilding and repair.

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About this part

Product Details

If you're rebuilding the engine in your 1979-1981 Audi 5000, getting the main bearings right is crucial for long-term reliability. This main bearing set from King Engine Bearings is specifically made for the AAN, AAR, AAT, RT, HY, and NG engine codes found in those cars.

These bearings are constructed with a bimetal aluminum base, which is a common and effective material for handling the loads and heat in a performance engine. This set is 1.0mm undersize, meaning it's intended for crankshafts that have been machined down by 1.0mm during an engine rebuild. Using the correct size bearing ensures proper oil clearance, which is vital for lubricating the crankshaft and preventing premature wear.