Main Bearings

Main Bearings, Competition, Standard Size, Super Duty Alloy, 3/4 Groove, Ford, Big Block FE, Set of 5

Part Number: SLP-125M

4.33 out of 5 stars ( 6 )

Estimated Ship Date: Today

Main Bearings, Competition, 0.010 in. Crankshaft Undersize, Super Duty Alloy, H-14, 1/2 Groove, Oldsmobile, 400, 425, 455, Set of 5

Part Number: SLP-108M10

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Estimated Ship Date: Today

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Main Bearings, Competition Series, Standard Size, Tri Metal, 3/4 Groove, Ford, 351M, 351W, 400, Set of 5

Part Number: SLP-130M

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Main Bearings, Competition Series, Standard Size, Tri Metal, 3/4 Groove, Chevy, 400, Set of 5

Part Number: SLP-140M

4.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

Main Bearings, Competition Series, Standard Size, Super Duty Alloy, H-14 Tri-Metal Copper-Lead Alloy, 3/4 Groove, Oldsmobile, 400, 425, 455, Set of 5

Part Number: SLP-108M

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Main Bearings, Competition, 0.010 in. Crankshaft Undersize, Super Duty Alloy, Ford, Big Block FE, Set of 5

Part Number: SLP-125M10

4.33 out of 5 stars ( 3 )

Estimated Ship Date: Today

Main Bearings, Competition, 0.001 in. Oversize, Tri Metal, 3/4 Groove, Ford, 351M, 351W, 400, Set

Part Number: SLP-130M1X

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Estimated Ship Date: Today

Main Bearings, Standard Size, Tri Metal, 1/2 Groove, Jeep, L6, 4.0L, Set

Part Number: SLP-7211M

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Main Bearings, 0.010 in. Crankshaft Undersize, Tri Metal, 1/2 Groove, Jeep, L6, 4.0L, Set

Part Number: SLP-7211M10

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Estimated Ship Date: Today

Main Bearings, Competition Series, 0.010 in. Crankshaft Undersize, Tri Metal, 3/4 Groove, Buick, 455, Set of 5

Part Number: SLP-157M10

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Main Bearings, Competition, 0.010 in. Crankshaft Undersize, Tri Metal, 3/4 Groove, Ford, 351M, 351W, 400, Set of 5

Part Number: SLP-130M10

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Estimated Ship Date: Today

Main Bearings, SI-Series, 1/2 Groove, Standard Size, Bi-metal, Silicon Aluminum, Ford, Flathead V8, Set

Part Number: KGB-MB3351SI

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Main Bearing, Full, Standard Size, Steel Backed, Aluminum Alloy, Cadillac, 365, 390, Set of 5

Part Number: KAA-MBS1791-STD

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Main Bearings, Competition Series, 0.010 in. Crankshaft Undersize, Tri Metal, 3/4 Groove, Chevy, 400, Set of 5

Part Number: SLP-140M10

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

Main Bearings, XP Series, Full Groove, Standard Size, Tri Metal, Subaru, 1.5, 1.6, 1.8, 2.0, 2.2, 2.5L, Set

Part Number: KGB-MB5382XPSTDX

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

Main Bearings, Competition Series, 0.010 in. Crankshaft Undersize, Tri Metal, 1/2 Groove, Buick, 340, 350, Set of 5

Part Number: SLP-4418M10

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Main Bearings, 0.030 in. Undersize, Tri Metal, 1/2 Groove, Jeep, L6, 4.0L, Set

Part Number: SLP-7211M30

Not Yet Reviewed

Estimated Ship Date: Feb 2, 2026 if ordered today

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• Special Order

Main Bearings, SI-Series, 1/2 Groove, 0.030 in. Over Size, Bi-metal, Silicon Aluminum, Ford, Flathead V8, Set

Part Number: KGB-MB3351SI030

Not Yet Reviewed

Estimated Ship Date: Apr 13, 2026 if ordered today

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Main Bearings, King XP-Series Main Bearings, Stock Size, Tri-Metal, Subaru, Sold as a Set

Part Number: KGB-MB5739XPG

Not Yet Reviewed

Estimated Ship Date: Apr 13, 2026 if ordered today

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• Special Order

Main Bearing, Full, .010 in. Crankshaft Undersize, Steel Backed, Aluminum Alloy, Cadillac, 365, 390, Set of 5

Part Number: KAA-MBS1791-010

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Main Bearing, Full Groove, .010 in. Crankshaft Undersize, Steel Backed, Aluminum Alloy, Chevy, 348, 409, Set of 5

Part Number: KAA-MBS2458-010

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Main Bearing, Full Groove, Standard Size, Steel Backed, Aluminum Alloy, Chevy, 348, 409, Set of 5

Part Number: KAA-MBS2458-STD

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Main Bearing, Full Groove, Standard Size, Steel Backed, Aluminum Alloy, Ford, Mercury, 312, Set of 5

Part Number: KAA-MBS1717-STD

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Main Bearing, Full Groove, .010 in. Crankshaft Undersize, Steel Backed, Aluminum Alloy, Edsel, Ford, Lincoln, Mercury, 383, 410, 430, 462, Set of 5

Part Number: KAA-MBS2444-010

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Main Bearing, Full Groove, .010 in. Crankshaft Undersize, Steel Backed, Aluminum Alloy, Chevy, 216, 235, Set of 4

Part Number: KAA-MBS1175-010

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