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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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, 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 )

Estimated Ship Date: Today

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: Jul 7, 2026 if ordered today

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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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Estimated Ship Date: Today

Main Bearings, .040 in. Over Size, Tri Metal, 1/2 Groove, Chevrolet, Small Block, Set of 5

Part Number: SLP-4663M40

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Estimated Ship Date: Apr 27, 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, 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: Jul 7, 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: Jul 7, 2026 if ordered today

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Main Bearings, AM-Series, Alecular Silicon, 1.00mm Crankshaft Undersize, Nissan, 1.2, 1.3, 1.4, 1.5L, Set of 5

Part Number: KGB-MB5229AM10

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Estimated Ship Date: Jul 7, 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: Jul 7, 2026 if ordered today

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Engine Crankshaft Main Bearing Set 55-67 CHV/GMC/PON 4.3L/4.6L/5.3L

Part Number: EGN-BC319J040

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Estimated Ship Date: Apr 28, 2026 if ordered today

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Engine Crankshaft Main Bearing Set 78-14 CHV/GM/GMC/IZU/OLD/PON 3.3L/3.8L/4.3L

Part Number: EGN-BC317J040

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Estimated Ship Date: Apr 30, 2026 if ordered today

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Engine Crankshaft Main Bearing Set 67-02 BUI/CAD/CHV/GM/GMC/OLD/PON 4.3L/4.4L/4.6L/4.9L/5.0L/5.3L/5.7L

Part Number: EGN-BC296J040

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Estimated Ship Date: Apr 30, 2026 if ordered today

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Engine Crankshaft Main Bearing Set 67-96 FRD/MER 3.9L/4.1L/4.9L

Part Number: EGN-BC305J040

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Estimated Ship Date: Apr 30, 2026 if ordered today

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Engine Crankshaft Main Bearing Set 62-01 FRD/LIN/MER 3.3L/3.6L/3.9L/4.2L/4.3L/4.6L/4.7L/4.9L/5.0L

Part Number: EGN-BC240J040

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Estimated Ship Date: Apr 29, 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: Jul 7, 2026 if ordered today

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Main Bearings, AM-Series, Alecular Silicon, 1.00mm Crankshaft Undersize, Mazda, 2.0, 2.2L, Set of 5

Part Number: KGB-MB5225AM10

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Estimated Ship Date: Jul 7, 2026 if ordered today

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Main Bearings, SI-Series, Silicon Aluminum, 1.00mm. Crankshaft Undersize, Chrysler, 3.5L, Set of 4

Part Number: KGB-MB4040SI10

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Estimated Ship Date: Jul 7, 2026 if ordered today

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Main Bearings, SI-Series, Silicon Aluminum, 1.00mm. Crankshaft Undersize, Chrysler, 2.7L, Set of 5

Part Number: KGB-MB4074SI10

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Estimated Ship Date: Jul 7, 2026 if ordered today

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Main Bearings, SI-Series, Silicon Aluminum, 1.00mm. Crankshaft Undersize, Isuzu, 2.2L, Set of 5

Part Number: KGB-MB5088SI10

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Estimated Ship Date: Jul 7, 2026 if ordered today

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Main Bearing, AM-Series, Alecular Silicon, 1.00mm. Crankshaft Undersize, Suzuki, 1.6L, Set of 5

Part Number: KGB-MB5587AM10

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Estimated Ship Date: Jul 7, 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: Jul 7, 2026 if ordered today

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Main Bearings, AM-Series, Alecular Silicon, 1.00mm Crankshaft Undersize, Toyota, Set of 7

Part Number: KGB-MB787AM10

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Estimated Ship Date: Jul 7, 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: Jul 7, 2026 if ordered today

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