Main Bearings

Main Bearing, Mitsubishi 4B11T 2.0L EVO X .001 Undersize, Set

Part Number: SUM-1237H1

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Main Bearing, Hyundai Kia G4KF,KH,KL,KA,KC,KD,KE,KG,KJ Standard Size, Set

Part Number: SUM-1295HS

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Main Bearings, AM-Series, 3/4 Groove, Standard Size, Bi Metal, Ford, 2.3, 2.5L, Set of 5

Part Number: KGB-MB5278AM

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Estimated Ship Date: Tomorrow

Main Bearings, Race Series, Tri-Metal, 3/4 Groove, Standard Size, Chevrolet, LS, Set of 5

Part Number: PEB-5M7298H-STD

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Main Bearings, Race Series, Tri-Metal, CT-1 Coating, 3/4 Groove, Standard Size, Chevrolet, LS, Set of 5

Part Number: PEB-5M7298HC-STD

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Summit Precision High-Tensile Tri-metal Alloy COATED Racing Main Bearings, Ford Cleveland .010 undersize (thicker), 3/4 Upper and Lower groove, set

Part Number: SUM-1010HC10

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Summit Precision High-Tensile Tri-Metal Alloy Racing Main Bearings, 351 Windsor .001 Extra Clearance, 3/4 Upper and Lower groove, set

Part Number: SUM-1432HXS

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Main Bearings, Race Series Main Bearing Sets, 0.001 in. Crankshaft Undersize, Tri-metal Copper-lead Alloy, Ford, 5.0L, Set of 5

Part Number: SUM-5655HXS

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Main Bearings, AM-Series, Alecular Silicon, 0.75mm Crankshaft Undersize, Ford, Mazda, Set of 4

Part Number: KGB-MB496AM075

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Estimated Ship Date: Feb 17, 2026 if ordered today

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Main Bearings, SI-Series, Silicon Aluminum, 1.00mm. Crankshaft Undersize, Chevy, 2.8, 3.1, 3.4L, Set of 4

Part Number: KGB-MB4080SI10

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Estimated Ship Date: Feb 17, 2026 if ordered today

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Main Bearings, SI-Series, Silicon Aluminum, 0.50mm. Crankshaft Undersize, Ford, 3.8L, Set of 4

Part Number: KGB-MB4052SI05

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Estimated Ship Date: Feb 17, 2026 if ordered today

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Main Bearings, SI-Series, Silicon Aluminum, 0.75mm. Crankshaft Undersize, Ford, 3.8L, Set of 4

Part Number: KGB-MB4052SI075

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Estimated Ship Date: Feb 17, 2026 if ordered today

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Main Bearings, AM-Series, Alecular Silicon, 0.25mm Crankshaft Undersize, Mazda, 1.8, 2.3, 2.5, 3.0L, Set of 4

Part Number: KGB-MB496AM025

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Estimated Ship Date: Feb 17, 2026 if ordered today

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Main Bearings, AM-Series, Alecular Silicon, 0.50mm Crankshaft Undersize, Ford, Mazda, Set of 4

Part Number: KGB-MB496AM05

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Estimated Ship Date: Feb 17, 2026 if ordered today

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Main Bearings, AM-Series, 3/4 Groove, Standard Size, Bi Metal, Mazda, 2.6L, Set 5

Part Number: KGB-MB5226AM

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Estimated Ship Date: Feb 17, 2026 if ordered today

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Main Bearings, AM-Series, Alecular Silicon, 0.25mm Crankshaft Undersize, Mazda, 2.6L, Set of 5

Part Number: KGB-MB5226AM025

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Estimated Ship Date: Feb 17, 2026 if ordered today

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Main Bearings, AM-Series, Alecular Silicon, 0.75mm Crankshaft Undersize, Mitsubishi, 1.6, 1.8, 2.0, 2.4L, Set of 5

Part Number: KGB-MB5209AM075

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Estimated Ship Date: Feb 17, 2026 if ordered today

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Main Bearings, XP-Series, Tri-metal, 0.50mm. Crankshaft Undersize, Nissan Skyline 2.6L RB26DETT Only, Set of 7

Part Number: KGB-MB7092XP05

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Estimated Ship Date: Feb 17, 2026 if ordered today

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Main Bearings, SI-Series, Silicon Aluminum, 0.50mm. Crankshaft Undersize, Ford, 3.8, 3.9, 4.2L, Set of 4

Part Number: KGB-MB4034SI05

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Estimated Ship Date: Feb 19, 2026 if ordered today

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Main Bearings, SI-Series, Silicon Aluminum, 0.75mm. Crankshaft Undersize, Ford, 3.8, 3.9, 4.2L, Set of 4

Part Number: KGB-MB4034SI075

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Estimated Ship Date: Feb 19, 2026 if ordered today

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Main Bearings, SI-Series, Silicon Aluminum, 0.50mm. Crankshaft Undersize, Chevy, 2.8, 3.1, 3.4L, Set of 4

Part Number: KGB-MB4080SI05

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Estimated Ship Date: Feb 19, 2026 if ordered today

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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: Feb 19, 2026 if ordered today

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Main Bearings, XP-Series, Copper/Lead/Nickel, 0.50mm. Crankshaft Undersize, Nissan, 3.0L, Set of 6

Part Number: KGB-MB4104XP05

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Estimated Ship Date: Feb 19, 2026 if ordered today

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Main Bearings, AM-Series, Alecular Silicon, 0.50mm Crankshaft Undersize, Kia, Mitsubishi, Set of 4

Part Number: KGB-MB4050AM05

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Estimated Ship Date: Feb 19, 2026 if ordered today

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Main Bearings, AM-Series, Alecular Silicon, 1.00mm Crankshaft Undersize, Kia, Mitsubishi, Set of 4

Part Number: KGB-MB4050AM10

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Estimated Ship Date: Feb 19, 2026 if ordered today

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