What does '0.020 inches undersize' mean for these bearings?

This means the bearings are manufactured to be 0.020 inches smaller in diameter than standard. They are intended for use when the crankshaft journals have been machined down by 0.020 inches during an engine rebuild to correct wear or damage.

What is the bearing material made of?

These bearings utilize a multi-layer construction. They feature a steel-backed overlay for structural integrity and a tin-aluminum alloy overlay that helps with embeddability and reducing friction against the crankshaft.

Are these bearings sold individually or as a set?

This product is a main bearing set, meaning it includes all the necessary main bearings required for a complete engine rebuild of the crankshaft main journals.

Clevite Main Bearing Set MS1039P20

Name: Clevite Main Bearing Set
Brand: Clevite
Price: 97.48 USD
Availability: InStock

Clevite Main Bearing Set

$97.48

On Backorder

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Clevite Main Bearing Set MS1039P20. Fits a wide range of Ford vehicles.

Key Features

Fits 37+ vehicle make/model combinations.
Main bearing set is 0.020 inches undersize.
Features a multi-layer bearing material.
Includes a steel-backed overlay for strength.
Tin-aluminum alloy overlay for improved embeddability and reduced friction.

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Will this fit your vehicle?

Product Details

These Clevite main bearings are 0.020 inches undersize, meaning they are designed to be used when the crankshaft journals have been machined down by 0.020 inches during an engine rebuild. This set is built with a multi-layer bearing material that includes a steel-backed overlay for strength and a tin-aluminum alloy overlay for improved embeddability and reduced friction. They are a popular choice for engine rebuilds where a reliable and well-built bearing is needed to ensure proper crankshaft support and oil clearance.

The construction of these bearings helps to manage the high loads and temperatures found in an engine's bottom end. The steel backing provides a solid foundation, while the specialized overlay helps to conform to the crankshaft surface, creating a consistent oil film. This is crucial for preventing metal-to-metal contact and reducing wear over time. This set is designed to fit a variety of Ford vehicles from the late 1960s through the mid-1990s, including models like the Ford F-250, E-350 Econoline, and LTD.