Main Bearings

Main Bearings, Bi-metal, Silicon Aluminum, 1/2 Groove Style, 0.010 in. Undersize, Chevy, Big Block, Set of 5

Part Number: KGB-MB556HP010X

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Estimated Ship Date: Mar 6, 2026 if ordered today

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Main Bearings, Bi-metal, Silicon Aluminum, 1/2 Groove Style, 0.020 in. Undersize, Chevy, Big Block, Set of 5

Part Number: KGB-MB556HP020X

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Estimated Ship Date: Mar 6, 2026 if ordered today

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Main Bearings, King SI-Series Main Bearings, Stock Size, Bi-Metal, Toyota, Sold as a Set of 5

Part Number: KGB-MB5286SI

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Estimated Ship Date: Mar 6, 2026 if ordered today

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Main Bearings, SI-Series, Silicon Aluminum, 0.50mm. Crankshaft Undersize, Chrysler, Dodge, Plymouth, 3.3L, Set of 4

Part Number: KGB-MB4060SI05

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Estimated Ship Date: Mar 5, 2026 if ordered today

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Main Bearings, 1/2 Groove, Standard Size, Bi-metal, Silicon Aluminum, Ford, 6.9, 7.3L, Diesel, Set 5

Part Number: KGB-MB5599SI

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Estimated Ship Date: Mar 6, 2026 if ordered today

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Main Bearings, 1/2 Groove, .010 in. Crankshaft Undersize, Bi-metal, Silicon Aluminum, Ford, 6.9, 7.3L, Diesel, Set 5

Part Number: KGB-MB5599SI010

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Estimated Ship Date: Mar 4, 2026 if ordered today

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Main Bearings, 0.010 in. Crankshaft Undersize, Bi-metal, Jeep, 3.8L, 4.0L, 4.2L, Set

Part Number: CWA-8133254K6

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Estimated Ship Date: Tomorrow

Main Bearings, Bi-Metal, Silicon Aluminum, 0.020 in. Crankshaft Undersize, GM Gen III/IV LS, Set of 5

Part Number: SUM-172320

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Estimated Ship Date: Tomorrow

Main Bearings, King SI-Series Main Bearings, Stock Size, Bi-Metal, Ford, Mazda, Sold as a Set of 5

Part Number: KGB-MB5442SI

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Estimated Ship Date: Mar 5, 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: Mar 6, 2026 if ordered today

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Main Bearings, SI-Series, 1/2 Groove, Standard Size, Bi-metal, Aluminum Silicon, Jeep, 2.5L, Set 5

Part Number: KGB-MB5148SI

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Estimated Ship Date: Mar 6, 2026 if ordered today

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Main Bearings, SI-Series, Silicon Aluminum, 0.25mm. Crankshaft Undersize, Ford, 3.8, 3.9, 4.2L, Set of 4

Part Number: KGB-MB4034SI025

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Estimated Ship Date: Mar 4, 2026 if ordered today

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Main Bearings, SI-Series, 3/4 Groove, .010 in. Crankshaft Undersize, Bi-metal, Silicon Aluminum, Ford, 2.9, 4.0L, Set 4

Part Number: KGB-MB4023SI010

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Estimated Ship Date: Mar 5, 2026 if ordered today

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Main Bearings, AM-Series, Alecular Silicon, 0.25mm Crankshaft Undersize, Mitsubishi, 3.0L, Set of 4

Part Number: KGB-MB459SI025

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Estimated Ship Date: Mar 5, 2026 if ordered today

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Main Bearings, HP-Series, Silicon Aluminum, 0.020 in. Crankshaft Undersize, Ford, Lincoln, Mercury, Set of 5

Part Number: KGB-MB529HP020X

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Estimated Ship Date: Mar 6, 2026 if ordered today

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Main Bearings, SI-Series, Silicon Aluminum, 0.020 in. Crankshaft Undersize, Chevy, Small Block, Set of 5

Part Number: KGB-MB5183SI020

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Estimated Ship Date: Tomorrow

Main Bearings, King SI-Series Main Bearings, Stock Size, Bi-Metal, BMW, Sold as a Set of 5

Part Number: KGB-MB5784SI

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Main Bearings, SI-Series, 1/2 Groove, .020 in. Crankshaft Undersize, Bi-metal, Silicon Aluminum, Buick, 3.8L, V6, Set 4

Part Number: KGB-MB4017SI020

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Estimated Ship Date: Mar 6, 2026 if ordered today

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Main Bearings, King SI-Series Main Bearings, .020 in., .50 mm Crankshaft Undersize, Bi-Metal, BMW, Sold as a Set of 5

Part Number: KGB-MB5784SI05

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Estimated Ship Date: Mar 4, 2026 if ordered today

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Main Bearing,

Part Number: CWA-J8133255

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Estimated Ship Date: Mar 2, 2026 if ordered today

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Main Bearings, SI-Series, Silicon Aluminum, 0.25mm. Crankshaft Undersize, Chevy, 2.8, 3.1, 3.4L, Set of 4

Part Number: KGB-MB4080SI025

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Estimated Ship Date: Mar 5, 2026 if ordered today

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Main Bearings, SI-Series, 1/2 Groove, 0.030 in. Over Size, Bi-metal, Silicon Aluminum, Ford, Flathead V8, Set

Part Number: KGB-MB3351SI030

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Estimated Ship Date: Mar 6, 2026 if ordered today

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Main Bearings, HP-Series, Silicon Aluminum, 0.25mm. Crankshaft Undersize, Ford, 4.6, 5.4L, Set of 5

Part Number: KGB-MB5280HP025

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Estimated Ship Date: Mar 6, 2026 if ordered today

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Main Bearings, SI-Series, Silicon Aluminum, 0.020 in. Crankshaft Undersize, Chevy, GMC, Big Block, Set of 5

Part Number: KGB-MB5212SI020

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Estimated Ship Date: Mar 6, 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: Mar 6, 2026 if ordered today

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