Main Bearings - Upper and lower Groove Location - In Stock Filter Options - Vendor In Stock Filter Options - Free Shipping on Orders Over $109 at Summit Racing

Clevite P-Series Main Bearings MS-1266P-10

Main Bearings, P Series, Full Groove, .010 in. Crankshaft Undersize, Tri Metal, Chrysler, Dodge, Plymouth, 360, Set of 5

Part Number: CLE-MS1266P10

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 9/22/2025

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Estimated Ship Date: Monday 9/22/2025

Clevite H-Series Main Bearings MS-981H

Main Bearings, H Series, Full Groove, Standard Size, Tri Metal, Ford, 351M, 351W, 400, Set of 5

Part Number: CLE-MS981H

2.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 9/22/2025

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Estimated Ship Date: Monday 9/22/2025

Speed-Pro Competition Series Main Bearings 152M

Main Bearings, Competition Series, Standard Size, Super Duty Alloy, 3/4 Groove, Chevy, LS, Set of 5

Part Number: SLP-152M

Not Yet Reviewed

Estimated Ship Date: Monday 9/22/2025

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Estimated Ship Date: Monday 9/22/2025

Speed-Pro Competition Series Main Bearings 108M10

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

Not Yet Reviewed

Estimated Ship Date: Monday 9/22/2025

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Estimated Ship Date: Monday 9/22/2025

Clevite P-Series Main Bearings MS-981P-10

Main Bearings, P Series, Full Groove, .010 in. Crankshaft Undersize, Tri Metal, Ford, 351M, 351W, 400, Set of 5

Part Number: CLE-MS981P10

4.5 out of 5 stars ( 4 )

Estimated Ship Date: Monday 9/22/2025

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Estimated Ship Date: Monday 9/22/2025

Sealed Power Main Bearing Sets 4261M20

Main Bearings, 0.020 in. Crankshaft Undersize, Tri Metal, Full Groove, Ford, Mercury, FE Big Block, Set of 5

Part Number: SLP-4261M20

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 9/22/2025

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Estimated Ship Date: Monday 9/22/2025

Speed-Pro Competition Series Main Bearings 125M10

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: Monday 9/22/2025

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Estimated Ship Date: Monday 9/22/2025

Sealed Power Main Bearing Sets 4221M20

Main Bearing Set;

Part Number: SLP-4221M20

Not Yet Reviewed

Estimated Ship Date: Monday 9/22/2025

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Estimated Ship Date: Monday 9/22/2025

Speed-Pro Competition Series Main Bearings 113M

Main Bearings, Competition Series, Standard Size, Super Duty Alloy, H-14, 3/4 Groove, Pontiac, 350, 389, 400, Set of 5

Part Number: SLP-113M

4.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 9/22/2025

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Estimated Ship Date: Monday 9/22/2025

Clevite P-Series Main Bearings MS-863P-20

Main Bearings, P Series, Full Groove, .020 in. Crankshaft Undersize, Tri Metal, Ford, 332-428 FE, Set of 5

Part Number: CLE-MS863P20

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 9/22/2025

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Estimated Ship Date: Monday 9/22/2025

Speed-Pro Competition Series Main Bearings 134M1X

Main Bearings, Competition, 0.001 in. Extra Clearance, Tri Metal, 3/4 Groove, Ford, Big Block, Set of 5

Part Number: SLP-134M1X

4.33 out of 5 stars ( 3 )

Estimated Ship Date: Monday 9/22/2025

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Estimated Ship Date: Monday 9/22/2025

Speed-Pro Competition Series Main Bearings 157M10

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: Monday 9/22/2025

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Estimated Ship Date: Monday 9/22/2025

Sealed Power Main Bearing Sets 5078M10

Main Bearings, 0.010 in. Crankshaft Undersize, Tri Metal, 1/2 Groove, Ford, 351W, 351M, 400, Set of 5

Part Number: SLP-5078M10

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 9/22/2025

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Estimated Ship Date: Monday 9/22/2025

Speed-Pro Competition Series Main Bearings 130M1X

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

Part Number: SLP-130M1X

Not Yet Reviewed

Estimated Ship Date: Monday 9/22/2025

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Estimated Ship Date: Monday 9/22/2025

Speed-Pro Competition Series Main Bearings 141M

Main Bearings, Competition Series, Standard Size, Tri Metal, 3/4 Groove, Chevy, 7.4L, Set of 5

Part Number: SLP-141M

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 9/22/2025

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Estimated Ship Date: Monday 9/22/2025

Sealed Power MA Series Main Bearings 4924MA10

Main Bearings, 0.010 in. Crankshaft Undersize, Bi Metal, 1/2 Groove, Chrysler, Dodge, Plymouth, Big Block, Set of 5

Part Number: SLP-4924MA10

Not Yet Reviewed

Estimated Ship Date: Monday 9/22/2025

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Estimated Ship Date: Monday 9/22/2025

Sealed Power MA Series Main Bearings 4923MA

Main Bearings, Standard Size, Bi Metal, 1/2 Groove, Dodge, Plymouth, 340, Set of 5

Part Number: SLP-4923MA

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 9/22/2025

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Estimated Ship Date: Monday 9/22/2025

Clevite P-Series Main Bearings MS-1344P-10

Main Bearings, P Series, Full Groove, .010 in. Crankshaft Undersize, Tri Metal, Chrysler, Dodge, Plymouth, 318, Set of 5

Part Number: CLE-MS1344P10

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 9/22/2025

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Estimated Ship Date: Monday 9/22/2025

Speed-Pro Competition Series Main Bearings 139M

Main Bearings, Competition Series, Standard Size, Tri Metal, 3/4 Groove, Chevy, 302, 305, 350, Set of 5

Part Number: SLP-139M

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 9/22/2025

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Estimated Ship Date: Monday 9/22/2025

Speed-Pro Competition Series Main Bearings 134M10

Main Bearings, Competition, 0.010 in. Crankshaft Undersize, Tri Metal, 3/4 Groove, Ford, Lincoln, 429, 460, Set of 5

Part Number: SLP-134M10

Not Yet Reviewed

Estimated Ship Date: Monday 9/22/2025

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Estimated Ship Date: Monday 9/22/2025

Sealed Power Main Bearing Sets 146M10

Main Bearings, Performance, 0.010 in. Crankshaft Undersize, Tri Metal, 3/4 Groove, Ford, Mercury, 351C, Set of 5

Part Number: SLP-146M10

Not Yet Reviewed

Estimated Ship Date: Monday 9/22/2025

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Estimated Ship Date: Monday 9/22/2025

Speed-Pro Competition Series Main Bearings 108M

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: Monday 9/22/2025

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Estimated Ship Date: Monday 9/22/2025

Summit Racing™ Race Series Main Bearing Sets SUM-1039HCS

Summit Precision High-Tensile Tri-Metal Alloy COATED Racing Main Bearings, BBF 460 Standard Clearance, 3/4 Upper and Lower groove, set

Part Number: SUM-1039HCS

Not Yet Reviewed

Estimated Ship Date: Monday 9/22/2025

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Estimated Ship Date: Monday 9/22/2025

Sealed Power Main Bearing Sets 5107M

Main Bearings, Standard Size, Tri Metal, Full Groove, Ford, Mercury, 351W, Set of 5

Part Number: SLP-5107M

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 9/22/2025

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Estimated Ship Date: Monday 9/22/2025

Sealed Power MA Series Main Bearings 4926MA

Main Bearings, Standard Size, Bi Metal, 3/4 Groove, Chevy, 400, Set of 5

Part Number: SLP-4926MA

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 9/22/2025

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Estimated Ship Date: Monday 9/22/2025