What does '0.50mm oversize' mean for these bearings?

This means the bearings are designed to fit a crankshaft that has had its main journals machined down by 0.50mm. This is a common practice when rebuilding an engine to correct wear or damage on the crankshaft journals.

What is the benefit of a bimetal aluminum base construction?

Bimetal bearings, especially those with an aluminum base, offer good embeddability and conformability to the crankshaft journal. This construction is well-suited for handling the loads and speeds found in many engine applications.

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 to replace them for the specified engine application.

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Est. 1957

Specifications

Brand: King Engine Bearings
Part #: MB552AM1.5
UPC: 611500169069

King Engine Bearings Toyota 3T/Tg/12T/4Tg (Size +0.50mm) Main Bearing Set

Name: King Engine Bearings Toyota 3T/Tg/12T/4Tg (Size +0.50mm) Main Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-toyota-3t-tg-12t-4tg-size-0-50mm-main--t14-770791
Price: 37.50 USD
Availability: BackOrder

$37.50

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Fits 1971-1982 Toyota Corolla. King Engine Bearings Main Bearing Set, 0.50mm oversize.

Key Features

Fits 1971-1982 Toyota Corolla.
Designed for Toyota 3T, TG, 12T, and 4TG engines.
Main bearing set is 0.50mm oversize.
Features a bimetal construction with an aluminum base.

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About this part

Product Details

This is a set of main bearings from King Engine Bearings, specifically sized at 0.50mm oversize for 1971-1982 Toyota Corolla models equipped with 3T, TG, 12T, or 4TG engines. Main bearings are crucial components that support the crankshaft within the engine block, allowing it to rotate smoothly while handling significant loads.

These bearings are constructed with a bimetal design, meaning they have an aluminum base. This construction is chosen for its ability to handle the demands of engine operation while providing a good balance of durability and performance for these specific Toyota engines. Because they are an oversize set, they are intended for use when the main journals on the crankshaft have been machined to a 0.50mm undersize to correct wear or damage.