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Main bearings have one of the toughest, dirtiest jobs in your engine. A good-quality main bearing must withstand extreme heat, friction, and high-rpm stress to keep...
Main bearings have one of the toughest, dirtiest jobs in your engine. A good-quality main bearing must withstand extreme heat, friction, and high-rpm stress to keep your engine operating at its best. At Summit Racing, top-quality main bearings are all we offer. We’re talking industry-leading brands like Clevite, Sealed Power, King Engine Bearings, Speed Pro, SCAT, Callies, and other top names. These are companies that know how to engineer a main bearing for optimum performance in anything from stock V8s to high-end race mills. Whether you’re building a fresh new engine or performing a main bearing replacement,...
Main bearings have one of the toughest, dirtiest jobs in your engine. A good-quality main bearing must withstand extreme heat, friction, and high-rpm stress to keep your engine operating at its best. At Summit Racing, top-quality main bearings are all we offer. We’re talking industry-leading brands like Clevite, Sealed Power, King Engine Bearings, Speed Pro, SCAT, Callies, and other top names. These are companies that know how to engineer a main bearing for optimum performance in anything from stock V8s to high-end race mills. Whether you’re building a fresh new engine or performing a main bearing replacement, we’ve got what you need!
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Main Bearings, SI-Series, 1/2 Groove, Standard Size, Bi-metal, Silicon Aluminum, Chevy, 4.8, 5.3L, Set of 5
Part Number: KGB-MB5293SI
Estimated Ship Date: Monday 1/12/2026
Estimated Ship Date: Monday 1/12/2026
Main Bearings, AL Series, Standard Size, LS, Set of 5
Part Number: CLE-MS2199A
Estimated Ship Date: Monday 1/12/2026
Estimated Ship Date: Monday 1/12/2026
Main Bearings, 1/2 Groove, Standard Size, Bi-metal, Silicon Aluminum, Chevy, Small Block, Set of 5
Part Number: KGB-MB557SI
Estimated Ship Date: Monday 1/12/2026
Estimated Ship Date: Monday 1/12/2026
Main Bearings, SI-Series, 1/2 Groove, .010 in. Crankshaft Undersize, Bi-metal, Silicon Aluminum, Chevy, Set of 5
Part Number: KGB-MB5293SI010
Estimated Ship Date: Monday 1/12/2026
Estimated Ship Date: Monday 1/12/2026
Main Bearings, 1/2 Groove, .010 in. Crankshaft Undersize, Bi-metal, Silicon Aluminum, Chevy, Small Block, Set of 5
Part Number: KGB-MB557SI010
Estimated Ship Date: Monday 1/12/2026
Estimated Ship Date: Monday 1/12/2026
Main Bearings, SI-Series, 0.001 in. Crankshaft Undersize, Bi-metal, Grooved, Buick, Cadillac, Chevrolet, GMC, Hummer, Isuzu, Pontiac, Saab, Set of 5
Part Number: KGB-MB5293SI001
Estimated Ship Date: Monday 1/12/2026
Estimated Ship Date: Monday 1/12/2026
Main Bearings, 1/2 Groove, Standard Size, Bi-metal, Silicon Aluminum, Ford, Small Block, Set of 5
Part Number: KGB-MB529SI
Estimated Ship Date: Monday 1/12/2026
Estimated Ship Date: Monday 1/12/2026
Main Bearings, AL-Series, Direct Replacement Usage, Stock Size, AL-5, Volkswagen, Set of 4
Part Number: CLE-MS822A
Estimated Ship Date: Monday 1/12/2026
Estimated Ship Date: Monday 1/12/2026
Main Bearings, SI-Series, 1/2 Groove, Standard Size, Bi-metal, Aluminum Silicon, Chevy, 400, Set of 5
Part Number: KGB-MB509SI
Estimated Ship Date: Monday 1/12/2026
Estimated Ship Date: Monday 1/12/2026
Main Bearings, 1/2 Groove, Standard Size, Bi-metal, Silicon Aluminumn, Chevy, Big Block, Set of 5
Part Number: KGB-MB556SI
Estimated Ship Date: Monday 1/12/2026
Estimated Ship Date: Monday 1/12/2026
Main Bearings, SI-Series, 1/2 Groove, Standard Size, Bi Metal, Ford, Coyote, Set of 5
Part Number: KGB-MB5734SI
Not Yet Reviewed
Estimated Ship Date: Monday 1/12/2026
Estimated Ship Date: Monday 1/12/2026
Main Bearings, 1/2 Groove, .010 in. Crankshaft Undersize, Bi-metal, Silicon Aluminum, Ford, Small Block, Set of 5
Part Number: KGB-MB529SI010
Estimated Ship Date: Monday 1/12/2026
Estimated Ship Date: Monday 1/12/2026
Main Bearings, Direct Replacement, TM-77, Set
Part Number: CLE-MS2327A
Not Yet Reviewed
Estimated Ship Date: Monday 1/12/2026
Estimated Ship Date: Monday 1/12/2026
Main Bearings, AL-Series, 1/2 Groove, Standard Size, AL-5, Chevrolet, Small Block, Set of 5
Part Number: CLE-MS909A
Not Yet Reviewed
Estimated Ship Date: Monday 1/12/2026
Estimated Ship Date: Monday 1/12/2026
Main Bearings, SI-Series, 1/2 Groove, Standard Size, Bi-metal, Silicon Aluminum, Ford, 429, 460, Set 5
Part Number: KGB-MB5650SI
Not Yet Reviewed
Estimated Ship Date: Monday 1/12/2026
Estimated Ship Date: Monday 1/12/2026
Main Bearings, SI-Series, 1/2 Groove, .020 in. Crankshaft Undersize, Bi-metal, Silicon Aluminum, Chevy, Set of 5
Part Number: KGB-MB5293SI020
Not Yet Reviewed
Estimated Ship Date: Monday 1/12/2026
Estimated Ship Date: Monday 1/12/2026
Main Bearings, 1/2 Groove, Standard Size, Bi-metal, Silicon Aluminum, Ford, Small Block, Modified, Set of 5
Part Number: KGB-MB5505SI
Estimated Ship Date: Monday 1/12/2026
Estimated Ship Date: Monday 1/12/2026
Main Bearings, SI-Series, Standard Size, Bi-metal, Silicon Aluminum, Dodge, 5.9, Diesel, Set of 7
Part Number: KGB-MB7009SI
Not Yet Reviewed
Estimated Ship Date: Monday 1/12/2026
Estimated Ship Date: Monday 1/12/2026
Main Bearings, 1/2 Groove, .010 in. Crankshaft Undersize, Bi-metal, Silicon Aluminum, Chevy, Big Block, Set of 5
Part Number: KGB-MB556SI010
Estimated Ship Date: Monday 1/12/2026
Estimated Ship Date: Monday 1/12/2026
Main Bearings, AL Series, 1/2 Groove, Standard Size, AL-5, Mopar, 5.7, 6.1L, Set
Part Number: CLE-MS2220A
Not Yet Reviewed
Estimated Ship Date: Monday 1/12/2026
Estimated Ship Date: Monday 1/12/2026
Main Bearings, SI-Series, 1/2 Groove, .020 in. Crankshaft Undersize, Bi-metal, Silicon Aluminum, Chyrsler, Big Block, Set of 5
Part Number: KGB-MB5116SI020
Not Yet Reviewed
Estimated Ship Date: Monday 1/12/2026
Estimated Ship Date: Monday 1/12/2026
Main Bearings, AL-Series, Direct Replacement Usage, Stock Size, Cadillac, Chevrolet, GMC, Set of 5
Part Number: CLE-MS2339A
Not Yet Reviewed
Estimated Ship Date: Monday 1/12/2026
Estimated Ship Date: Monday 1/12/2026
Main Bearings, 1/2 Groove, .010 in. Crankshaft Undersize, Bi-metal, Silicon Aluminum, Ford, Set of 5
Part Number: KGB-MB5505SI010
Estimated Ship Date: Monday 1/12/2026
Estimated Ship Date: Monday 1/12/2026
Main Bearings, 1/2 Groove, .020 in. Crankshaft Undersize, Bi-metal, Silicon Aluminum, Chevy, Small Block, Set of 5
Part Number: KGB-MB557SI020
Estimated Ship Date: Monday 1/12/2026
Estimated Ship Date: Monday 1/12/2026
Main Bearings, SI-Series, 1/2 Groove, Standard Size, Bi-metal, Silicon, Aluminum R Block, Ford, 4.6L, Set of 5
Part Number: KGB-MB5281SI
Estimated Ship Date: Monday 1/12/2026
Estimated Ship Date: Monday 1/12/2026
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