Summit Racing SpeedCard - learn how to get 10% back up to $100

Summit Racing SpeedCard - learn how to get 10% back up to $100

Haul in the Savings - Shop the Truck Savings Event Today!

King XP-Series Main Bearings

4.42 out of 5 stars 43 Customer Reviews

Built with enhanced tri-metal, King XP-Series main bearings have a layered copper lead construction, with a nickel plate barrier and lead/tin/copper Babbitt overlay
Built with enhanced tri-metal, King XP-Series main bearings have a layered copper lead construction, with a nickel plate barrier and lead/tin/copper Babbitt overlay over a steel backing--in an adhesion process that provides superior stability and durability. King's advanced control measures hit a bull's-eye, maintaining wall thickness tolerances far tighter than their competitors: an amazing +/- .0001 in. The XP-Series main bearings are narrowed for large radii crankshafts and feature enlarged, chamfered oil holes with full, 3/4 in., or 1/2 in. grooving for improved oiling. They deliver consistent and reliable perfor
Built with enhanced tri-metal, King XP-Series main bearings have a layered copper lead construction, with a nickel plate barrier and lead/tin/copper Babbitt overlay over a steel backing--in an adhesion process that provides superior stability and durability. King's advanced control measures hit a bull's-eye, maintaining wall thickness tolerances far tighter than their competitors: an amazing +/- .0001 in. The XP-Series main bearings are narrowed for large radii crankshafts and feature enlarged, chamfered oil holes with full, 3/4 in., or 1/2 in. grooving for improved oiling. They deliver consistent and reliable performance with a high-load capacity. These race-only Xtreme Performance (XP-Series) Tri-Lecular main bearings are proven track-tough to handle the ground-shaking power of your race engine. Hundreds of sets are available; order the bearings recommended for your vehicle.

Results 1 - 25 of 100

Main Bearings, XP-Series, Standard, Tri Metal, Buick, Cadillac, Chevy, GMC, Hummer, Pontiac, Saab, V8, Set

Part Number: KGB-MB5013XP

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Main Bearings, XP-Series, Copper/Lead/Nickel, Standard Size, Chevy, 4.8, 5.3, 5.7, 6.0L, Set

Part Number: KGB-MB5013XPSTDX

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Main Bearings, XP-Series, Copper/Lead/Nickel, 0.010 in. Crankshaft Undersize, Chevy, 4.8, 5.3, 5.7, 6.0L, Set

Part Number: KGB-MB5013XP010

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Main Bearings, XP-Series, Performance, Tri-Metal, Dart LS Next, Set of 5

Part Number: KGB-MB5777XP

Not Yet Reviewed

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Main Bearings, XP-Series, Copper/Lead/Nickel, 0.001 in. Crankshaft Undersize, Chevy, 4.8, 5.3, 5.7, 6.0L, Set

Part Number: KGB-MB5013XP001

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Main Bearings, XP-Series, Copper/Lead/Nickel, 0.010 in. Crankshaft Undersize, Chevy, 4.8, 5.3, 5.7, 6.0L, Set

Part Number: KGB-MB5013XP010X

3.5 out of 5 stars ( 2 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Main Bearings, XP-Series, Copper/Lead/Nickel, 0.011 in. Crankshaft Undersize, Chevy, 4.8, 5.3, 5.7, 6.0L, Set

Part Number: KGB-MB5013XP011

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Main Bearings, XP-Series, 1/2 Groove, Standard Size, Tri Metal, Ford 4.6L, 5.4L, Set of 5

Part Number: KGB-MB5280XPC

Not Yet Reviewed

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Main Bearings, XP-Series, Copper/Lead/Nickel, Standard Size, Ford, 4.6L, Set of 5

Part Number: KGB-MB5353XP

Not Yet Reviewed

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Main Bearings, XP-Series, Copper/Lead/Nickel, Standard Size, 0.001 in. Extra Clearance, Ford, 4.6, 5.4L, Set of 5

Part Number: KGB-MB5280XPSTDX

Not Yet Reviewed

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

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

Part Number: KGB-MB5734XP025

Not Yet Reviewed

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Main Bearings, XP-Series, 1/2 Groove, Standard Size, Tri Metal, Ford, 5.4L, 5.8L, GT500, Set of 5

Part Number: KGB-MB5824XP

Not Yet Reviewed

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Main Bearings, XP-Series, Copper/Lead/Nickel, 0.010 in. Crankshaft Undersize, Ford, 4.6, 5.4L, Set of 5

Part Number: KGB-MB5280XP025

Not Yet Reviewed

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Main Bearings, XP-Series, 1/2 Groove, Standard Size, Tri Metal, Pontiac V8, Set of 5

Part Number: KGB-MB5511XPSTDX

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Crankshaft Main Bearings set, Honda H22 50mm journal

Part Number: KGB-MB5168XP

Not Yet Reviewed

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Main Bearings, XP-Series, Performance, .001 Extra Clearance, Tri-Metal, Dart LS Next, Set of 5

Part Number: KGB-MB5777XPSTDX

Not Yet Reviewed

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Main Bearings, HP-Series, Copper/Lead/Nickel, 0.001 in. Crankshaft Undersize, Chrysler, Dodge, Plymouth, 426, 440, Set 5

Part Number: KGB-MB5116XP001

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Dec 15, 2025 if ordered today

...Loading

Estimated Ship Date: Dec 15, 2025 if ordered today

Main Bearings, XP-Series, Copper/Lead/Nickel, Standard Size, Chrysler, Dodge, Plymouth, 426, 440, Set of 5

Part Number: KGB-MB5116XPSTDX

Not Yet Reviewed

Estimated Ship Date: Dec 15, 2025 if ordered today

...Loading

Estimated Ship Date: Dec 15, 2025 if ordered today

Main Bearings, King XP-Series Main Bearings, Stock Size, Tri-Metal, BMW, Peugeot, Sold as a Set of 5

Part Number: KGB-MB5758XP

Not Yet Reviewed

Estimated Ship Date: Dec 15, 2025 if ordered today

...Loading

Estimated Ship Date: Dec 15, 2025 if ordered today

Crankshaft Main Bearings set, Honda H22 50mm journal

Part Number: KGB-MB5168XPSTDX

Not Yet Reviewed

Estimated Ship Date: Dec 15, 2025 if ordered today

...Loading

Estimated Ship Date: Dec 15, 2025 if ordered today

Main Bearings, XP-Series, Tri-metal, 0.25mm. Crankshaft Undersize, Nissan, 2.0L Non-US SR20DET Only, Set of 5

Part Number: KGB-MB5721XP025

Not Yet Reviewed

Estimated Ship Date: Dec 15, 2025 if ordered today

...Loading

Estimated Ship Date: Dec 15, 2025 if ordered today

Main Bearings, King XP-Series Main Bearings, .001 in., .026 mm Crankshaft Undersize, Tri-Metal, Ford, Sold as a Set

Part Number: KGB-MB5734XP0026

Not Yet Reviewed

Estimated Ship Date: Dec 15, 2025 if ordered today

...Loading

Estimated Ship Date: Dec 15, 2025 if ordered today

Main Bearings, XP-Series, Performance, 3/4, Tri-Metal, Set of 5

Part Number: KGB-MB5770XP

Not Yet Reviewed

Estimated Ship Date: Dec 15, 2025 if ordered today

...Loading

Estimated Ship Date: Dec 15, 2025 if ordered today

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

Part Number: KGB-MB5286XP05

Not Yet Reviewed

Estimated Ship Date: Dec 15, 2025 if ordered today

...Loading

Estimated Ship Date: Dec 15, 2025 if ordered today

Main Bearings, King XP-Series Main Bearings, .001 in., .026 mm Crankshaft Undersize, Tri-Metal, Toyota, Sold as a Set of 5

Part Number: KGB-MB5286XP026

Not Yet Reviewed

Estimated Ship Date: Dec 16, 2025 if ordered today

...Loading

Estimated Ship Date: Dec 16, 2025 if ordered today

Modal Header

Call To Order

This is a custom order part. You can order this part by Contacting Us.