OLDSMOBILE Main Bearings

Main Bearings, 1/2 Groove, Standard Size, Bi-metal, Silicon Aluminum, Chevy, Small Block, Set of 5

Part Number: KGB-MB557SI

4.0 out of 5 stars ( 9 )

Estimated Ship Date: Today

Main Bearings, HP-Series, Standard Size, Bi-metal, Silicon Aluminum, Chevy, Small Block, Set of 5

Part Number: KGB-MB557HP

4.33 out of 5 stars ( 6 )

Estimated Ship Date: Today

Main Bearings, HP-Series, Bi-metal, Silicon Aluminum, Standard Size, Chevy, 400, Small Block, Set of 5

Part Number: KGB-MB509HP

4.33 out of 5 stars ( 6 )

Estimated Ship Date: Today

Main Bearings, 1/2 Groove, .010 in. Crankshaft Undersize, Bi-metal, Silicon Aluminum, Chevy, Small Block, Set of 5

Part Number: KGB-MB557SI010

4.67 out of 5 stars ( 6 )

Estimated Ship Date: Today

Main Bearings, SI-Series, 1/2 Groove, Standard Size, Bi-metal, Aluminum Silicon, Chevy, 400, Set of 5

Part Number: KGB-MB509SI

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Main Bearings, HP-Series, .010 in. Crankshaft Undersize, Bi-metal, Silicon Aluminumn, Chevy, Small Block, Set of 5

Part Number: KGB-MB557HP010

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Main Bearings, HP Series, 1/2 Groove, Standard Size, Bi Metal, Pontiac, 5.3, 5.7, 6.4, 6.6L, Set

Part Number: KGB-MB5511HP

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Main Bearings, HP-Series, 1/2 Groove, Bi-metal, Silicon Aluminum, Chevy, Small Block, Set

Part Number: KGB-MB557HPSTDX

3.67 out of 5 stars ( 3 )

Estimated Ship Date: Today

Main Bearings, HP-Series, Silicon Aluminum, Standard Size, Chevy, 400, Set of 5

Part Number: KGB-MB509HPSTDX

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Main Bearings, 1/2 Groove, .020 in. Crankshaft Undersize, Bi-metal, Silicon Aluminum, Chevy, Small Block, Set of 5

Part Number: KGB-MB557SI020

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Main Bearings, HP-Series, Bi-metal, Grooved, 0.010 in. Crankshaft Crankshaft Undersize, Chevy, 400, Set of 5

Part Number: KGB-MB509HP010

Not Yet Reviewed

Estimated Ship Date: Today

Main Bearings, 1/2 Groove, .001 in. Crankshaft Undersize, Bi-metal, Silicon Aluminum, Chevy, Small Block, Set of 5

Part Number: KGB-MB557SI001

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

Main Bearings, 1/2 Groove, .030 in. Crankshaft Undersize, Bi-metal, Silicon Aluminum, Chevy, Small Block, Set of 5

Part Number: KGB-MB557SI030

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Main Bearings, HP-Series, .001in. Crankshaft Undersize, Bi-metal, Silicon Aluminum, Chevy, Small Block, Set of 5

Part Number: KGB-MB557HP001

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

Main Bearings, SI-Series, 1/2 Groove, .010 in. Crankshaft Undersize, Bi-metal, Aluminum Silicon, Chevy, 400, Set of 5

Part Number: KGB-MB509SI010

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Main Bearings, HP-Series, Silicon Aluminum, 0.020 in. Crankshaft Undersize, Chevy, 400, Set of 5

Part Number: KGB-MB509HP020

Not Yet Reviewed

Estimated Ship Date: Today

Main Bearings, HP-Series, Silicon Aluminum, 0.020 in. Crankshaft Undersize, Chevy, Small Block, Set of 5

Part Number: KGB-MB557HP020

Not Yet Reviewed

Estimated Ship Date: Today

Main Bearings, SI-Series, 1/2 Groove, .020 in. Crankshaft Undersize, Bi-metal, Aluminum Silicon, Chevy, 400, Set of 5

Part Number: KGB-MB509SI020

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Main Bearings, 1/2 Groove, .040 in. Crankshaft Undersize, Bi-metal, Silicon Aluminum, Chevy, Small Block, Set of 5

Part Number: KGB-MB557SI040

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Estimated Ship Date: Today

Main Bearings, 1/2 Groove, .001 in. Thinner, Bi-metal, Silicon Aluminum, Chevy, Small Block, Set of 5

Part Number: KGB-MB557SISTDX

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Main Bearings, King HP-Series Main Bearings, .010 in., .25 mm Crankshaft Undersize, Bi-Metal, Pontiac, Sold as a Set

Part Number: KGB-MB5511HP010

Not Yet Reviewed

Estimated Ship Date: Apr 13, 2026 if ordered today

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Main Bearings, HP-Series, Silicon Aluminum, 0.011 in. Crankshaft Undersize, Chevy, Small Block, Set of 5

Part Number: KGB-MB557HP011

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Estimated Ship Date: Apr 13, 2026 if ordered today

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Main Bearings, SI-Series, 1/2 Groove, .030 in. Crankshaft Undersize, Bi-metal, Aluminum Silicon, Chevy, 400, Set of 5

Part Number: KGB-MB509SI030

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Estimated Ship Date: Today

Main Bearings, 1/2 Groove, Standard Size, Bi-metal, Silicon Aluminum, GM V6, Set of 5

Part Number: KGB-MB445SI

Not Yet Reviewed

Estimated Ship Date: Today

Main Bearings, King HP-Series Main Bearings, .001 in., .025 mm Crankshaft Undersize, Bi-Metal, Pontiac, Sold as a Set

Part Number: KGB-MB5511HP001

Not Yet Reviewed

Estimated Ship Date: Apr 13, 2026 if ordered today

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• Special Order