What is the purpose of main bearings?

Main bearings sit in the engine block and support the crankshaft. They create a low-friction surface for the spinning crankshaft and maintain the correct oil clearance to ensure proper lubrication.

Why is the +0.75mm sizing important?

This sizing indicates the bearings are 0.75mm larger than standard. This is typically used when the crankshaft journals have been machined down (ground undersize) during an engine rebuild to correct wear or damage.

What does 'bimetal' construction mean for these bearings?

Bimetal bearings use two layers of material. Typically, a steel backing provides strength, and a softer overlay (like aluminum or bronze in this case) conforms to the journal and provides the bearing surface for reduced friction and wear.

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Specifications

Brand: King Engine Bearings
Part #: MB5359AM0.75
UPC: 611500417368

King Engine Bearings Mazda Fe 2.0L (Size +0.75mm) Main Bearing Set

Name: King Engine Bearings Mazda Fe 2.0L (Size +0.75mm) Main Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-mazda-fe-2-0l-size-0-75mm-main-bearing-t14-770659
Price: 40.97 USD
Availability: BackOrder

$40.97

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King Engine Bearings Mazda Fe 2.0L (Size +0.75mm) Main Bearing Set. Engine Bearing

Key Features

Fits Mazda FE 2.0L engines.
Main bearing set, sized +0.75mm.
Constructed with a bimetal design and aluminum base.
Designed to support the crankshaft and maintain proper oil clearance.

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About this part

Product Details

Built with a bimetal construction featuring an aluminum base, this main bearing set from King Engine Bearings is specifically sized at +0.75mm for Mazda FE 2.0L engines. Main bearings are crucial for supporting the crankshaft within the engine block, ensuring it spins smoothly and with minimal friction. This set is designed to replace worn or damaged bearings, helping to restore proper oil clearance and reduce engine noise.

King Engine Bearings is a well-known name in engine components, and this set reflects their focus on durable materials. The bimetal design offers good wear resistance and conformability, which is important for maintaining an effective oil film between the bearing and the crankshaft journal. When rebuilding or repairing an FE 2.0L engine, using bearings that are precisely sized and made from reliable materials is key to a long-lasting rebuild.