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

The +0.50mm sizing indicates that these bearings are intended for use when the engine's main crankshaft journals have been machined down by 0.50mm. This is a common practice during engine rebuilding to ensure proper oil clearance with a worn or resurfaced crankshaft.

What is the construction of these main bearings?

These main bearings feature a bimetal construction. This means they have a layered design with a strong aluminum base, which helps with heat dissipation and provides a solid structure for the bearing surface.

Are these bearings a direct replacement for stock?

These bearings are a direct fit for the specified vehicles and engine types. However, the +0.50mm sizing means they are intended for engines that have undergone specific machining during a rebuild, not necessarily a direct bolt-on for an untouched engine.

Specifications

Brand: King Engine Bearings
Part #: MB5528AM0.5
UPC: 611500200410

King Engine Bearings Mazda 626 F8/(Size +0.50mm) Main Bearing Set

Name: King Engine Bearings Mazda 626 F8/(Size +0.50mm) Main Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-mazda-626-f8-size-0-50mm-main-bearing--t14-770782
Price: 52.48 USD
Availability: BackOrder

$52.48

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Fits 1986-1992 Mazda 626. King Engine Bearings main bearing set with bimetal aluminum base construction.

Key Features

Fits 1986-1992 Mazda 626, 1989-1992 Ford Probe, and 1988-1992 Mazda MX-6.
Main bearing set for F8 engines.
Features a bimetal construction with an aluminum base.
This set is sized +0.50mm, intended for machined crankshaft journals.

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About this part

Product Details

This product is a main bearing set for your 1986-1992 Mazda 626 with an F8 engine. It includes the main bearings, which are crucial for supporting the crankshaft and ensuring it spins smoothly within the engine block. These bearings are made with a bimetal construction, featuring an aluminum base.

The bimetal design with an aluminum base helps manage heat and provides a solid foundation for the bearing surface. This set is specifically sized at +0.50mm, meaning it's intended for engines where the main journals have been machined down by 0.50mm during a rebuild. Using the correct size bearings is essential for proper oil clearance and engine longevity.