Engine Bearings & Spacers

Main Bearings, SI-Series, Silicon Aluminum, 0.75mm. Crankshaft Undersize, Chevy, 2.8, 3.1, 3.4L, Set of 4

Part Number: KGB-MB4080SI075

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Estimated Ship Date: Nov 19, 2025 if ordered today

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

Part Number: KGB-MB5706SI05

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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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Main Bearings, SI-Series, 1/2 Groove, .001 in. Thinner, Bi-metal, Silicon Aluminum, Chevy, Set 5

Part Number: KGB-MB5257SISTDX

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Crankshaft Main Bearings set, PORSCHE M 48.00/M 48.50

Part Number: KGB-MB5790SI

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Main Bearings, King SI-Series Main Bearings, .010 in., .25 mm Crankshaft Undersize, for use on Acura®, for use on Honda®, Saturn, Sold as a Set of 4

Part Number: KGB-MB4508SI025

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Main Bearings, King SI-Series Main Bearings, .010 in., .25 mm Crankshaft Undersize, Bi-Metal, for Infiniti, for Nissan, Sold as a Set of 4

Part Number: KGB-MB4524SI025

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Main Bearings, King SI-Series Main Bearings, .010 in., .25 mm Crankshaft Undersize, Bi-Metal, Lexus, Lotus, Toyota, Sold as a Set of 4

Part Number: KGB-MB4525SI025

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Main Bearings, SI-Series, Silicon Aluminum, 0.75mm. Crankshaft Undersize, Ford, Mazda, 3.0L, Set of 4

Part Number: KGB-MB459SI075

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Main Bearings, SI-Series, Silicon Aluminum, 0.50mm. Crankshaft Undersize, Ford, 2.0L, Set of 4

Part Number: KGB-MB5008SI05

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Main Bearings, SI-Series, Silicon Aluminum, 0.50mm. Crankshaft Undersize, Chevy, 6.2, 6.5L Diesel, Set of 5

Part Number: KGB-MB5257SI05

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Main Bearings, King SI-Series Main Bearings, .010 in., .25 mm Crankshaft Undersize, Bi-Metal, Audi, Volkswagen, Sold as a Set of 5

Part Number: KGB-MB5661SI025

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Main Bearings, King SI-Series Main Bearings, .030 in., .75 mm Crankshaft Undersize, Bi-Metal, Chevy, Sold as a Set of 5

Part Number: KGB-MB5754SI075

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Crankshaft Main Bearings set, Nissan HR15/16DE

Part Number: KGB-MB5767SI

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Crankshaft Main Bearings set, Nissan HR15/16DE

Part Number: KGB-MB5767SI05

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Main Bearings, SI-Series, Silicon Aluminum, 0.50mm. Crankshaft Undersize, Ford, 4.6L, Set of 5

Part Number: KGB-MB5219SI05

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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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Main Bearings, King SI-Series Main Bearings, .020 in., .50 mm Crankshaft Undersize, Bi-Metal, Opel, Sold as a Set of 4

Part Number: KGB-MB4049SI05

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Main Bearings, SI-Series, Silicon Aluminum, 0.75mm. Crankshaft Undersize, Ford, 2.5, 3.0L, Set of 4

Part Number: KGB-MB4056SI075

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Main Bearings, King SI-Series Main Bearings, .010 in., .25 mm Crankshaft Undersize, Bi-Metal, Audi, Volkswagen, Sold as a Set of 4

Part Number: KGB-MB4073SI025

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Main Bearings, King SI-Series Main Bearings, .020 in., .50 mm Crankshaft Undersize, Bi-Metal, Ford, Sold as a Set of 4

Part Number: KGB-MB435SI020

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Main Bearings, SI-Series, Silicon Aluminum, 0.020 in. Crankshaft Undersize, Buick, 3.3, 3.8L, Set of 4

Part Number: KGB-MB480SI020

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Main Bearings, SI-Series, Silicon Aluminum, 0.50mm. Crankshaft Undersize, Saturn, 1.9L, Set of 4

Part Number: KGB-MB5007SI05

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Main Bearings, SI-Series, Silicon Aluminum, 0.75mm. Crankshaft Undersize, Ford, 2.0L, Set of 4

Part Number: KGB-MB5008SI075

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Crankshaft Main Bearings set, Nissan MR18DE, MR20DE

Part Number: KGB-MB5781SI05

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