Main Bearings

Main Bearings, 0.040 in. Crankshaft Undersize, Bi Metal, 1/2 Groove, Chevy, Big block, Set of 5

Part Number: SLP-4400MA40

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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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Main Bearings, 0.040 in. Crankshaft Undersize, Tri Metal, Full Groove, Ford, Mercury, FE Big Block, Set of 5

Part Number: SLP-4261M40

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

Part Number: KGB-MB529SI040

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Main Bearings, SI-Series, Silicon Aluminum, 0.040 in. Crankshaft Undersize, Chevy, Set of 5

Part Number: KGB-MB5293SI040

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Estimated Ship Date: Apr 13, 2026 if ordered today

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Main Bearings, AM-Series, 1/2 Groove, .040 in. Crankshaft Undersize, Bi Metal, Chevy, 265, 283, 302, 327, Set of 5

Part Number: KGB-MB554AM040

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Main Bearings, AM-Series, 1/2 Groove, .040 in. Crankshaft Undersize, Bi Metal, AMC, Jeep, 290-401, Set of 5

Part Number: KGB-MB5518AM040

5.0 out of 5 stars ( 2 )

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Main Bearings, Full Groove, .040 in. Crankshaft Undersize, Bi Metal, Alecular Alloy, AMC, Willys, Set of 3

Part Number: KGB-MB319AM040

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Estimated Ship Date: Apr 13, 2026 if ordered today

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Main Bearings, SI-Series, Silicon Aluminum, 0.040 in. Crankshaft Undersize, Chevy, Small Block, Set of 5

Part Number: KGB-MB5184SI040

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Estimated Ship Date: Apr 13, 2026 if ordered today

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Main Bearings, SI-Series, Full Groove, .040 in. Crankshaft Undersize, Bi-metal, Silicon Aluminum, Ford, Set of 5

Part Number: KGB-MB5504SI040

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Estimated Ship Date: Apr 13, 2026 if ordered today

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Main Bearings, SI-Series, 1/2 Groove, .040 in. Crankshaft Undersize, Bi-metal, Aluminum Silicon, Jeep, Chrysler, Set of 5

Part Number: KGB-MB517SI040

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Estimated Ship Date: Apr 13, 2026 if ordered today

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Main Bearings, 0.040 in. Crankshaft Undersize, Bi Metal, 1/2 Groove, Dodge, Plymouth, 340, Set of 5

Part Number: SLP-4923MA40

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Main Bearings, AM-Series, Alecular Silicon, 1.00mm Crankshaft Undersize, Toyota, 1.5, 1.6, 1.8L, Set of 5

Part Number: KGB-MB5527AM10

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Estimated Ship Date: Apr 13, 2026 if ordered today

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Main Bearings, SI-Series, Silicon Aluminum, 1.00mm. Crankshaft Undersize, Chevy, 6.2, 6.5L Diesel, Set of 5

Part Number: KGB-MB5257SI10

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Estimated Ship Date: Apr 13, 2026 if ordered today

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Main Bearings, AM-Series, Full Groove, Alecular Silicon, 1.00mm. Crankshaft Undersize, Toyota, 2.2L, 2.4L, Set of 5

Part Number: KGB-MB580AM10

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Estimated Ship Date: Apr 13, 2026 if ordered today

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Main Bearings, SI-Series, Silicon Aluminum, 1.00mm. Crankshaft Undersize, Dodge, Jeep, 4.7L, Set of 5

Part Number: KGB-MB5284SI10

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Estimated Ship Date: Apr 13, 2026 if ordered today

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Main Bearings, King AM-Series Main Bearings, .040 in., 1.00 mm Crankshaft Undersize, Bi-Metal, Suzuki, Sold as a Set

Part Number: KGB-MB5285AM10

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Estimated Ship Date: Apr 13, 2026 if ordered today

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Main Bearings, AM-Series, Alecular Silicon, 1.00mm Crankshaft Undersize, Chrysler, Dodge, Plymouth, 2.2L, Set of 5

Part Number: KGB-MB5521AM10

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Estimated Ship Date: Apr 13, 2026 if ordered today

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Main Bearings, AM-Series, Alecular Silicon, 1.00mm Crankshaft Undersize, Suzuki, 1.3L, Set of 5

Part Number: KGB-MB5556AM10

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Estimated Ship Date: Apr 13, 2026 if ordered today

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Main Bearings, AM-Series, Alecular Silicon, 1.00mm Crankshaft Undersize, Renault, Set of 5

Part Number: KGB-MB588AM10

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Estimated Ship Date: Apr 13, 2026 if ordered today

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Main Bearings, AM-Series, Alecular Silicon, 1.00mm Crankshaft Undersize, Isuzu, 2.3L, Set of 5

Part Number: KGB-MB5559AM10

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Estimated Ship Date: Apr 13, 2026 if ordered today

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Main Bearings, AM-Series, Alecular Silicon, 1.00mm Crankshaft Undersize, Isuzu, 1.5, 1.6L, Set of 5

Part Number: KGB-MB5540AM10

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Estimated Ship Date: Apr 13, 2026 if ordered today

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Main Bearings, King SI-Series Main Bearings, .040 in., 1.00 mm Crankshaft Undersize, Bi-Metal, Toyota, Sold as a Set of 5

Part Number: KGB-MB5646SI10

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Estimated Ship Date: Apr 13, 2026 if ordered today

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Main Bearings, AM-Series, Alecular Silicon, 1.00mm Crankshaft Undersize, BMW, 2.8L, 3.2L, Set of 7

Part Number: KGB-MB770AM10

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Estimated Ship Date: Apr 13, 2026 if ordered today

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Main Bearings, King AM-Series Main Bearings, .040 in., 1.00 mm Crankshaft Undersize, Alecular Silicon, BMW, Sold as a Set of 7

Part Number: KGB-MB7039AM10

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Estimated Ship Date: Apr 13, 2026 if ordered today

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