King Bearings MB 557XP 020 Main Bearing Set

The King Bearings MB 557XP 020 Main Bearing Set is designed as a replacement main bearing kit for Small Block Chevy applications. This set features an undersize measurement of 0.020 inch, making it intended for applications requiring main bearings with this specified undersize.

Manufactured under the King Bearings brand, this XP-series main bearing set provides a component option for engine rebuilding and service work where the correct bearing specification is required. The part number MB 557XP 020 helps identify the set when selecting parts for an applicable engine project.

Confirm the required bearing size and application before installation to ensure this main bearing set matches the engine’s crankshaft and service specifications. This product is supplied as a kit and is identified for Small Block Chevy use in the product information.

Features:

• Brand: King Bearings
• Part Number: MB 557XP 020
• Product Type: Main bearing set
• Series: XP
• Undersize: 0.020 inch
• Application: Small Block Chevy
• Package Format: Kit