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, 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, 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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Estimated Ship Date: Today

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, Set of 5

Part Number: KGB-MB5293SI040

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Estimated Ship Date: Dec 29, 2025 if ordered today

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Main Bearings, AM-Series, Full Groove, .040 in. Crankshaft Undersize, Bi Metal, Ford, Mercury, 330-428, FE, FT, Set 5

Part Number: KGB-MB559AM040

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Estimated Ship Date: Dec 29, 2025 if ordered today

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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: 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: Dec 26, 2025 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: Dec 29, 2025 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: Dec 29, 2025 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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Estimated Ship Date: Today

Main Bearings, AM-Series, 1/2 Groove, .040 in. Crankshaft Undersize, Bi Metal, Buick, 340, 350, Set of 5

Part Number: KGB-MB5516AM040

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Estimated Ship Date: Dec 29, 2025 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: Dec 29, 2025 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: Dec 29, 2025 if ordered today

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