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King AM-Series Main Bearings

4.24 out of 5 stars 33 Customer Reviews

King AM-Series main bearings are recommended for street or marine applications. These crankshaft bearings have superior embeddability, which provides greater macro-particle to reduce scratching of the crank journals and tearing or weakening of the Babbitt overlays. King AM-Series main bearings feature tolerance control to within plus or minus .0001—and they're lead-free, making them environmentally-friendly and user-safe. Hundreds of performance sets are available; order the replacement bearings designed to fit your vehicle.

Results 1 - 25 of 103

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

Part Number: KGB-MB5278AM

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Main Bearings, AM-Series, Alecular Silicon, 0.25mm Crankshaft Undersize, Ford, 2.3, 2.5L, Set of 5

Part Number: KGB-MB5278AM025

5.0 out of 5 stars ( 1 )

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Main Bearings, AM-Series, 1/2 Groove, Standard Size, Bi Metal, Buick, Land Rover, MG, Rover, V8, Set of 5

Part Number: KGB-MB589AM

Not Yet Reviewed

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Main Bearings, 1/2 Groove, Standard Size, Bi Metal, Alecular Alloy, for use on Honda®/Acura®, Set of 5

Part Number: KGB-MB5568AM

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Main Bearings, AM-Series, Alecular Silicon, Standard Size, BMW, 2.5L, 2.7L, 2.8L, Set of 5

Part Number: KGB-MB7039AM

Not Yet Reviewed

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Main Bearings, King AM-Series Main Bearings, Stock Size, Bi-Metal, Land Rover, Sold as a Set of 5

Part Number: KGB-MB5031AM

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

Main Bearings, AM-Series, 3/4 Groove, Standard Size, Bi Metal, Mitsubishi, 1.6, 1.8, 2.0, 2.4L, Set 5

Part Number: KGB-MB5227AM

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

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

Part Number: KGB-MB612AM

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

Main Bearings, AM-Series, Alecular Silicon, 0.25mm Crankshaft Undersize, for use on Acura®, Honda®, Set of 5

Part Number: KGB-MB5568AM025

Not Yet Reviewed

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Main Bearings, AM-Series, Alecular Silicon, 0.75mm Crankshaft Undersize, Ford, 2.3, 2.5L, Set of 5

Part Number: KGB-MB5278AM075

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

Main Bearings, King AM-Series Main Bearings, .010 in., .25 mm Crankshaft Undersize, Alecular Silicon, Lotus, Pontiac, Toyota, Sold as a Set

Part Number: KGB-MB5375AM025

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

Main Bearings, AM-Series, 3/4 Groove, Standard Size, Bi Metal, Mazda, 1.8, 2.0L, Set of 5

Part Number: KGB-MB5171AM

Not Yet Reviewed

Estimated Ship Date: Today

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Main Bearings, AM-Series, Alecular Silicon, 0.75mm Crankshaft Undersize, for use on Acura®, Honda®, Set of 5

Part Number: KGB-MB5568AM075

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

Main Bearings, AM-Series, Alecular Silicon, Standard Size, Hyundai, Mitsubishi, Set of 5

Part Number: KGB-MB5315AM

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

Main Bearing, AM-Series, Alecular Silicon, 0.50mm. Crankshaft Undersize, Suzuki, 1.6L, Set of 5

Part Number: KGB-MB5587AM05

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

Main Bearings, AM-Series, Alecular Silicon, 0.25mm Crankshaft Undersize, Mazda, 1.8, 2.0L, Set of 5

Part Number: KGB-MB5171AM025

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

Main Bearings, AM-Series, 1/2 Groove, .030 in. Undersize, Bi Metal, Buick, 3.3, 3.8L, Set of 4

Part Number: KGB-MB480AM030

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

Main Bearings, AM-Series, Alecular Silicon, 1.00mm Crankshaft Undersize, Chrysler, Dodge, Plymouth, 2.0L, Set of 5

Part Number: KGB-MB5052AM10

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

Main Bearings, AM-Series, Full Groove, Standard Size, Bi Metal, for Kia, Mazda, 2.0, 2.2L, Set of 5

Part Number: KGB-MB5158AM

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

Main Bearings, AM-Series, Alecular Silicon, 0.75mm Crankshaft Undersize, Toyota, 1.5, 1.6, 1.8L, Set of 5

Part Number: KGB-MB5527AM075

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

Main Bearings, King AM-Series Main Bearings, .010 in., .25 mm Crankshaft Undersize, Alecular Silicon, Datsun, Sold as a Set of 5

Part Number: KGB-MB5595AM025

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

Main Bearings, AM-Series, Alecular Silicon, 0.75mm Undersize, Subaru, 1.8, 2.2, 2.5L, Set of 5

Part Number: KGB-MB5382AM075

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

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

Part Number: KGB-MB4050AM05

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

Main Bearings, 1/2 Groove, Standard Size, Bi Metal, Alecular Alloy, Set of 4

Part Number: KGB-MB454AM

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

Main Bearings, AM-Series, Alecular Silicon, 0.50mm Crankshaft Undersize, Subaru, 2.0, 2.2, 2.5L, Set of 5

Part Number: KGB-MB5234AM05

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today