What does '+0.25mm' mean for these bearings?

The '+0.25mm' indicates that these bearings are slightly larger than standard size. They are intended for use when the crankshaft journals have been machined down by 0.25mm to account for wear or to achieve specific clearances.

What is bimetal construction?

Bimetal construction typically involves a steel backing for strength and an aluminum alloy overlay. This combination helps with heat dissipation and provides a good bearing surface for the rotating crankshaft.

Do I need to replace all the main bearings when doing an engine rebuild?

Yes, it's standard practice to replace all main bearings when rebuilding an engine. This ensures consistent oil clearance and proper support for the crankshaft across the entire assembly.

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Trusted Since 1957

Est. 1957

Specifications

Brand: King Engine Bearings
Part #: MB5510AM1.25
UPC: 611500196157

King Engine Bearings Mazda E3/E5/(Size +0.25mm) Main Bearing Set

Name: King Engine Bearings Mazda E3/E5/(Size +0.25mm) Main Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-mazda-e3-e5-size-0-25mm-main-bearing-s-t14-770745
Price: 34.21 USD
Availability: BackOrder

$34.21

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Fits 1979-1985 Mazda GLC. King Engine Bearings main bearing set with bimetal aluminum base construction.

Key Features

Fits 1979-1985 Mazda GLC.
Main bearing set for Mazda E3 and E5 engines.
Features a bimetal construction with an aluminum base.
This set is +0.25mm oversize for use with machined crankshafts.

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About this part

Product Details

King Engine Bearings is known for making solid engine components, and this main bearing set is no different. If you're rebuilding the engine in your 1979-1985 Mazda GLC with the E3 or E5 engine, these bearings are designed to fit right in. They're made with a bimetal construction, meaning they have an aluminum base, which helps with heat transfer and durability in the demanding environment of the engine's bottom end.

This set is specifically sized at +0.25mm, which is important if you're machining your crankshaft to match. Using the correct undersize or oversize bearings is crucial for maintaining proper oil clearance, which is key to engine longevity. These bearings are built to handle the stresses of daily driving and keep your engine running smoothly.