What does the +0.50mm size mean for these bearings?

The +0.50mm designation indicates that these bearings are 0.020 inches larger in diameter than standard size bearings. This size is used when the engine's main journals or the block bores have been machined to this larger dimension, typically during an engine rebuild to correct wear or out-of-round conditions.

What is the advantage of a bimetal aluminum base construction?

A bimetal construction with an aluminum base offers a good balance of strength, wear resistance, and conformability. The aluminum base provides a solid foundation, while the bearing surface is designed to handle the high loads and temperatures found in an engine, helping to maintain proper oil clearance.

Are these bearings sold individually or as a set?

This product is a main bearing set, meaning it includes all the necessary main bearings required for a complete engine installation. You will receive the full set needed to replace all the main bearings on the crankshaft.

King Engine Bearings Peugeot 504 (Size +0.50mm) Main Bearing Set

Specifications

Brand: King Engine Bearings
Part #: MB522AM0.5
UPC: 611500162725

King Engine Bearings Peugeot 504 (Size +0.50mm) Main Bearing Set

Name: King Engine Bearings Peugeot 504 (Size +0.50mm) Main Bearing Set
Brand: King Engine Bearings
Price: 40.64 USD
Availability: InStock

$40.64

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Fits 1980-1987 Peugeot 505. King Engine Bearings Main Bearing Set, size +0.50mm. Bimetal aluminum base construction.

Key Features

Fits 1980-1987 Peugeot 505.
Main bearing set with a +0.50mm size.
Features a bimetal construction with an aluminum base.
Designed for engine rebuilding applications where the block has been machined to a larger size.

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Fits these vehicles

Peugeot 404 1970
Peugeot 504 1969-1970, 1975-1979
Peugeot 505 1980-1987

Product Details

These main bearings from King Engine Bearings are built with a bimetal construction, featuring an aluminum base. This design is crucial for handling the loads and heat generated within your engine's crankshaft system. Specifically sized at +0.50mm, these bearings are intended for engines that have been machined to this larger dimension during a rebuild.

When you're rebuilding the bottom end of your Peugeot 504 or 505, a proper main bearing set is essential for ensuring the crankshaft spins smoothly and without excessive friction. The bimetal design offers good wear resistance and conformability, helping to maintain oil film integrity. King Engine Bearings is a well-known name in engine components, and this set is made to fit your specific application, assuming the block has been bored to the +0.50mm specification.

If your engine build requires main bearings that are 0.50mm larger than standard due to previous machining or wear, this set from King Engine Bearings is a solid option. Always confirm your engine's required bearing size before ordering to ensure a proper fit and function for your rebuild.