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

The +0.50mm sizing means these bearings are 0.50mm thicker than standard. They are designed to be used when the crankshaft journals have been machined down by 0.50mm to remove wear or damage, bringing them back to a clean surface for the new bearings.

What material are these main bearings made from?

These bearings are made from a bimetal construction with an aluminum base. This material is chosen for its good load-carrying capacity and heat dissipation properties within an engine.

Does this set include all the bearings needed for the crankshaft?

This is a main bearing set, which includes the bearings that support the crankshaft where it bolts to the engine block. It does not include connecting rod bearings (rod bearings).

Specifications

Brand: King Engine Bearings
Part #: MB5527AM1.5
UPC: 611500200267

King Engine Bearings Toyota 4A-Fe/5A-Fe/7A-Fe (Size +0.50mm) Main Bearing Set

Name: King Engine Bearings Toyota 4A-Fe/5A-Fe/7A-Fe (Size +0.50mm) Main Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-toyota-4a-fe-5a-fe-7a-fe-size-0-50mm-m-t14-770779
Price: 30.99 USD
Availability: BackOrder

$30.99

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Fits 1983-1997 Toyota Corolla. King Engine Bearings main bearing set, 0.50mm undersize, for 4A-Fe, 5A-Fe, and 7A-Fe engines.

Key Features

Fits 1983-1997 Toyota Corolla, 1990-1997 Toyota Celica, 1985-1989 Toyota MR2, 1980-1988 Toyota Tercel, and 1990-1992 Geo Prizm.
Main bearing set for Toyota 4A-Fe, 5A-Fe, and 7A-Fe engines.
Size is +0.50mm (0.020 inches) undersize, intended for use with a machined crankshaft.
Constructed with a bimetal (aluminum base) material for reliable performance.
Includes the necessary main bearings for engine installation.

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About this part

Product Details

This is a King Engine Bearings Main Bearing Set, specifically sized at +0.50mm for Toyota 4A-Fe, 5A-Fe, and 7A-Fe engines. These bearings are constructed with a bimetal aluminum base, a common and effective material for engine bearings that balances strength and heat dissipation.

When rebuilding or repairing an engine, especially one with significant mileage, replacing the main bearings is a critical step. These bearings sit between the crankshaft and the engine block, supporting the crankshaft's rotation. This set is designed as a direct replacement for your Toyota, ensuring it fits right into the specified engine configurations. The +0.50mm sizing indicates these are intended for use when the crankshaft journals have been machined down by 0.50mm to clean up wear or damage.

This set includes the main bearings needed for your engine. Proper installation, following manufacturer guidelines for torque and lubrication, is essential for the longevity and performance of your engine.