What does the +0.5 size mean for these bearings?

The +0.5 size indicates that these bearings are 0.5mm (approximately 0.020 inches) undersize. This means they are intended for use when the crankshaft journals have been machined down by this amount to remove wear or damage.

What type of engine load are these bearings best suited for?

These bearings are specifically designed for medium-load engine applications. Their lead-free composite construction and bi-metal aluminum material make them a good choice for engines that are not subjected to extreme racing conditions.

Are these bearings environmentally friendly?

Yes, these bearings feature a lead-free composite material, making them an environmentally safe option compared to older bearing technologies that contained lead.

Specifications

Brand: King Engine Bearings
Part #: MB5281SI0.5
UPC: 611500452697

King Engine Bearings Ford 281CI 4.6L V8 (Size +0.5) Main Bearing Set

Name: King Engine Bearings Ford 281CI 4.6L V8 (Size +0.5) Main Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-ford-281ci-4-6l-v8-size-0-5-main-beari-t14-4326310
Price: 56.91 USD
Availability: BackOrder

$56.91

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King Engine Bearings Ford 4.6L V8 (Size +0.5) Main Bearing Set. Lead-free composite bearings for medium-load engines.

Key Features

Fits 21+ vehicle make/model combinations.
Main bearing set for Ford 281ci 4.6L V8 engines.
Size is +0.5mm (0.020 inches undersize).
Constructed with a bi-metal aluminum material.
Features a lead-free composite for environmental safety.
Ideal for 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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About this part

Product Details

King Engine Bearings has been specializing in engine bearings since 1960, focusing on supplying the highest quality available. This main bearing set, part number MB5281SI0.5, is designed for Ford 281ci 4.6L V8 engines and is sized at +0.5mm. It's a solid option for a wide range of Ford, Lincoln, and Mercury vehicles, including popular models like the Ford F-150, Ford Mustang, and Mercury Mountaineer.

These bearings are constructed from a bi-metal aluminum material and feature a lead-free, environmentally safe composite. This design makes them well-suited for medium-load engine applications, offering a reliable component for your engine rebuild or repair. The +0.5mm sizing indicates these are intended for use when the crankshaft journals have been machined down by 0.020 inches (0.5mm) to clean up wear or damage.