$42.99

Main Bearing Set;
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Sealed Power MA Series Main Bearings 4663MA 60

Sealed Power MA Series Main Bearings 4663MA 60

SLP-4663MA60

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Part Number: SLP-4663MA60

Estimated Ship Date: Mar 16, 2026

$42.99

Estimated Ship Date: Mar 16, 2026 Would you rather pick it up?

Overview

Brand:
Manufacturer's Part Number:
4663MA 60
Part Type:
Product Line:
Summit Racing Part Number:
SLP-4663MA60
UPC:
00614046781559
Bearing Usage:
Performance
Grooved Bearing:
No
Bearing Material:
Bi-metal aluminum alloy, A-Series
Quantity:
Sold as a set of 5.

Sealed Power MA Series Main Bearings

These Sealed Power MA Series main bearings can actually polish the journals on your crankshaft. That's because there's a small percentage of silicon mixed in with the aluminum and tin that make up the bearing-surface alloy. The silicon is there for wear resistance, but its toughness actually smoothes the journals of a crank whose surface hasn't been optimized! This special surface alloy is laid over a high-strength 1010 steel backing and delivers improved seizure and corrosion resistance, as well as better control of wall variance. It also helps to minimize debris embedding, which can score the crank's surface.

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