What does the '+0.5' size designation mean for these bearings?

The '+0.5' indicates that these main bearings are 0.0005 inches larger in diameter than standard size. This means they are intended for use on crankshaft journals that have been machined down by that amount during an engine rebuild.

What type of engines are these bearings best suited for?

These bearings are ideal for low to medium-load engines. Their lead-free composite and bi-metal aluminum construction is designed to handle typical operating conditions for many passenger car engines.

King Ford/Kia/Mazda DOHC 16 Valve/SOHC 8 Valve/SOHC 16 Valve (Size +0.5) Main Bearing Set

Specifications

Brand: King Engine Bearings
Part #: MB5537AM0.5
UPC: 611500202124

King Ford/Kia/Mazda DOHC 16 Valve/SOHC 8 Valve/SOHC 16 Valve (Size +0.5) Main Bearing Set

Name: King Ford/Kia/Mazda DOHC 16 Valve/SOHC 8 Valve/SOHC 16 Valve (Size +0.5) Main Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-ford-kia-mazda-dohc-16-valve-sohc-8-valve-sohc-16-valv-t14-280163
Price: 45.96 USD
Availability: BackOrder

$45.96

On Backorder

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Fits 1988-1993 Ford Festiva. King main bearing set, size +0.5. Features lead-free composite and bi-metal aluminum for low to medium-load engines.

Key Features

Fits 1988-1993 Ford Festiva, 1994-1997 Ford Aspire, 1999-2001 Mazda Protege, and 1991-1994 Mercury Capri.
Main bearing set is sized +0.5 for use on machined crankshaft journals.
Constructed with a lead-free, environmentally safe composite material.
Features a bi-metal aluminum construction.
Ideal for low to medium-load engine applications.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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Will this fit your vehicle?

Product Details

These main bearings from King Engine Bearings are built with a lead-free, environmentally safe composite material. They are specifically designed for low to medium-load engines, making them a solid option for your rebuild. The bi-metal aluminum construction offers a good balance of strength and thermal conductivity.

This set is sized at +0.5, meaning it's intended for crankshaft journals that have been machined down by 0.0005 inches. It's important to ensure your crankshaft journals are prepped to this specific size before installation. King has been specializing in engine bearings since 1960, focusing on producing reliable components for a wide range of applications.