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King Engine Bearings

King XP-Series Coated Main Bearings

4.43 out of 5 stars 7 Customer Reviews

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

Showing In Stock Items. Show All 10 Items.

Results 1 - 7 of 7

King XP-Series Coated Main Bearings MB 557XPC

King XP-Series Coated Main Bearings MB 557XPC

King XP-Series Coated Main Bearings MB 557XPC

Main Bearing, XP-Series, Coated, Standard, Tri Metal, Chevy, Small Block, Set of 5

Part Number: KGB-MB557XPC

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 2/2/2026

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Estimated Ship Date: Monday 2/2/2026

King XP-Series Coated Main Bearings MB 558XPC STDX

King XP-Series Coated Main Bearings MB 558XPC STDX

King XP-Series Coated Main Bearings MB 558XPC STDX

Main Bearing, Performance Series, Standard Size, .001 in Thinner, Tri-metal copper-lead nickel, Dodge, Plymouth, Small Block, Each

Part Number: KGB-MB558XPCSTDX

Not Yet Reviewed

Estimated Ship Date: Monday 2/2/2026

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Estimated Ship Date: Monday 2/2/2026

King XP-Series Coated Main Bearings MB 558XPC

King XP-Series Coated Main Bearings MB 558XPC

King XP-Series Coated Main Bearings MB 558XPC

Main Bearing, Performance Series, Standard Size, Tri-metal copper-lead nickel, Dodge, Plymouth, Small Block, Each

Part Number: KGB-MB558XPC

Not Yet Reviewed

Estimated Ship Date: Monday 2/2/2026

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Estimated Ship Date: Monday 2/2/2026

King XP-Series Coated Main Bearings MB 558XPC 020

King XP-Series Coated Main Bearings MB 558XPC 020

King XP-Series Coated Main Bearings MB 558XPC 020

Main Bearing, Performance Series, .020 in. Crankshaft Undersize, Tri-metal copper-lead nickel, Dodge, Plymouth, Small Block, Each

Part Number: KGB-MB558XPC020

Not Yet Reviewed

Estimated Ship Date: Monday 2/2/2026

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Estimated Ship Date: Monday 2/2/2026

King XP-Series Coated Main Bearings MB 557XPC 020

King XP-Series Coated Main Bearings MB 557XPC 020

King XP-Series Coated Main Bearings MB 557XPC 020

Main Bearing Set, GENERAL MOTORS 262, 267, 302, 307, 327, 350 - pMaxKote

Part Number: KGB-MB557XPC020

Not Yet Reviewed

Estimated Ship Date: Monday 2/2/2026

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Estimated Ship Date: Monday 2/2/2026

King XP-Series Coated Main Bearings MB 558XPC 001

King XP-Series Coated Main Bearings MB 558XPC 001

King XP-Series Coated Main Bearings MB 558XPC 001

Main Bearings, XP-Series Coated, Tri-Metal Copper-Lead Nickel, 0.001 in. Crankshaft Undersize, 1/2 Upper Groove, Mopar, Small Block LA, Set of 5

Part Number: KGB-MB558XPC001

Not Yet Reviewed

Estimated Ship Date: Monday 2/2/2026

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Estimated Ship Date: Monday 2/2/2026

King XP-Series Coated Main Bearings MB 558XPC 010

King XP-Series Coated Main Bearings MB 558XPC 010

King XP-Series Coated Main Bearings MB 558XPC 010

Main Bearing, Performance Series, .010 in. Crankshaft Undersize, Tri-metal copper-lead nickel, Dodge, Plymouth, Small Block, Each

Part Number: KGB-MB558XPC010

Not Yet Reviewed

Estimated Ship Date: Monday 2/2/2026

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Estimated Ship Date: Monday 2/2/2026

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