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 26 Items.

Results 1 - 16 of 16

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 )

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King XP-Series Coated Main Bearings MB 556XPNC

Main Bearings, XP-Series, 1/2 Groove, Tri-Metal, GM, Big Block, Set

Part Number: KGB-MB556XPNC

5.0 out of 5 stars ( 2 )

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King XP-Series Coated Main Bearings MB 556XPNC 010

Main Bearings,King XP-Series Coated Main Bearings, .010 in., .25 mm Crankshaft Undersize, Tri-Metal, Chevy, Sold as a Set of 5

Part Number: KGB-MB556XPNC010

Not Yet Reviewed

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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

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King XP-Series Coated Main Bearings MB 556XPNC 001

Main Bearings,King XP-Series Coated Main Bearings, .001 in., .025 mm Crankshaft Undersize, Tri-Metal, Chevy, Sold as a Set of 5

Part Number: KGB-MB556XPNC001

Not Yet Reviewed

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King XP-Series Coated Main Bearings MB 529XPC

Main Bearings, XP Series Coated, Tri-Metal, pMaxKote Coated, Ford, Small Block Windsor, Set of 5

Part Number: KGB-MB529XPC

1.0 out of 5 stars ( 1 )

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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

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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

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King XP-Series Coated Main Bearings MB 556XPNC 020

Main Bearings,King XP-Series Coated Main Bearings, .020 in., .50 mm Crankshaft Undersize, Tri-Metal, Chevy, Sold as a Set of 5

Part Number: KGB-MB556XPNC020

Not Yet Reviewed

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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

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King XP-Series Coated Main Bearings MB 529XPC STDX

Main Bearings, XP-Series, 1/2 Groove, Standard Size, Tri Metal, Ford, Small Block, Set of 5

Part Number: KGB-MB529XPCSTDX

Not Yet Reviewed

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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

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King XP-Series Coated Main Bearings MB5116XPC 001

Main Bearings, XPC-Series, 1/2 Groove, .001 in. Crankshaft Undersize, Bi-metal Polymer Coated, Chyrsler, Big Block, Set of 5

Part Number: KGB-MB5116XPC001

Not Yet Reviewed

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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

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King XP-Series Coated Main Bearings MB 509XPC 001

Main Bearings, XPC-Series, 0.001 in. Crankshaft Undersize, Tri Metal, Chevy, 400, V8, Set of 5

Part Number: KGB-MB509XPC001

Not Yet Reviewed

Estimated Ship Date: Apr 20, 2026 if ordered today

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Estimated Ship Date: Apr 20, 2026 if ordered today

King XP-Series Coated Main Bearings MB 556XPC 020

Main Bearing Set, CHEVROLET 369-502 Gen IV, V, VI - pMaxKote

Part Number: KGB-MB556XPC020

Not Yet Reviewed

Estimated Ship Date: Apr 20, 2026 if ordered today

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Estimated Ship Date: Apr 20, 2026 if ordered today

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King XP-Series Coated Main Bearings MB 556XPNC 020

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