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Main Bearings, XP-Series, Coated, Standard Size, Chevy, 400, Set of 5
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King XP-Series Coated Main Bearings MB 509XPC

King XP-Series Coated Main Bearings MB 509XPC

KGB-MB509XPC

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Part Number: KGB-MB509XPC

$107.99

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This product cannot be ordered at this time. Future availability is unknown. We apologize for the inconvenience.

Need It Sooner? We recommend these similar substitute parts:

King SI-Series Main Bearings MB 509SI

5 out of 5 stars ( 1 )

Estimated Ship Date: Monday 11/9/2026

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Overview

Brand:
Manufacturer's Part Number:
MB 509XPC
Part Type:
Product Line:
Summit Racing Part Number:
KGB-MB509XPC
Item Number:
3942555
UPC:
611500593710
Bearing Usage:
Performance
Engine Crankshaft Undersize (in.):
Stock
Engine Crankshaft Undersize (mm):
Stock
Grooved Bearing:
Yes
Groove Location:
Upper
Groove Style:
1/2
Thrust Bearing Oversize:
Stock
Bearing Material:
Tri-metal, copper-lead nickel
Quantity:
Sold as a set of 5.
Notes:
Features pMaxKote coating that's applied to the pMax Black overlay to provide additional wear resistance without causing clearance issues.

King XP-Series Coated Main Bearings

Give your engine the winning edge with King XP-Series coated main bearings. Built off the revolutionary XP-Series tri-metal construction, King's factory-applied pMaxKote™ nano-composite coating takes protection to the next level without adding any additional thickness! Order the replacement main bearings designed for fitment with your engine.

pMaxKote™ provides:

* Superior seizure resistance
* Superior cavitation resistance
* Superior wear resistance
* Superior protection against oil starvation

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