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King Engine Bearings MB 601AM0.25 Crankshaft Main Bearing Set 0.25mm Undersize

(1979-1981 Audi 5000)

Part of: King Engine Bearings Oversize Crankshaft Main Bearing Set

Other options in this family: King Engine Bearings MB5537AM0.25 King Engine Bearings MB5286SI0.25 King Engine Bearings MB5780SM0.25 King Engine Bearings MB4056SI King Engine Bearings MB 545AM0.25

Manufacturer

Picture for manufacturer King Engine Bearings

Part Number

MB 601AM0.25
14 reviews
Sale Price

$77.59

Estimated ship date Monday, November 23

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Product Details

The King Engine Bearings MB 601AM0.25 is an OE-replacement crankshaft main bearing set sized at 0.25mm undersize, designed for Audi engines using the AAN, AAR, AAT, RT, HY, and NG engine codes. This set includes 6 pairs of main bearing shells, providing a complete solution for engine rebuilding or restoration.

Constructed using King's AM-Series bi-metal aluminum material — equivalent to SAE-783 — these bearings are the softest bi-metal in King's lineup and are engineered for passenger car engines operating under low to medium loads. The aluminum-based alloy is completely lead-free, making it an environmentally responsible and user-safe choice without sacrificing performance.

Key Features:

  • OE-replacement bi-metal (aluminum) construction — SAE-783 equivalent
  • 0.25mm undersize for use with reground crankshafts
  • Lead-free aluminum composite — environmentally safe
  • Superior embeddability for improved macro-particle tolerance
  • Precision tolerance control for consistent oil clearance
  • Suited for street and standard passenger car engine rebuilds

King Engine Bearings has been manufacturing precision engine bearings since 1960, and the AM-Series represents their trusted standard-grade offering for OE-quality engine rebuilds. These main bearings are an excellent choice for engine builders restoring Audi five-cylinder engines to factory specifications.

Products specifications

Fits

1979-1981 Audi 5000

Material

bimetal (aluminum base)

Flange Oversize

FL O/S 0.1 mm

Undersize

0.25

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