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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 243

King AM-Series Main Bearings MB7039AM

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

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

King AM-Series Main Bearings MB5278AM

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: Tomorrow

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Estimated Ship Date: Tomorrow

King AM-Series Main Bearings MB 589AM 010

Main Bearings, AM-Series, 1/2 Groove, .010 in. Crankshaft Undersize, Bi Metal, Buick, Land Rover, MG, Rover, V8, Set of 5

Part Number: KGB-MB589AM010

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

King AM-Series Main Bearings MB 582AM0.25

Main Bearings, AM-Series, Full Groove, Alecular Silicon, 0.25mm. Crankshaft Undersize, Ford, 2.0L, 2.3L, Set of 5

Part Number: KGB-MB582AM025

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

King AM-Series Main Bearings MB5514AM

Main Bearings, AM-Series, Full Groove, Standard Size, Bi Metal, Oldsmobile, 260, 307, 330, 350, 403, Set of 5

Part Number: KGB-MB5514AM

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Jun 10, 2026 if ordered today

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Estimated Ship Date: Jun 10, 2026 if ordered today

King AM-Series Main Bearings MB 589AM

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

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

King AM-Series Main Bearings MB5514AM 020

Main Bearings, AM-Series, Full Groove, .020 in. Crankshaft Undersize, Bi Metal, Oldsmobile, 260, 307, 330, 350, 403

Part Number: KGB-MB5514AM020

Not Yet Reviewed

Estimated Ship Date: Jun 9, 2026 if ordered today

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Estimated Ship Date: Jun 9, 2026 if ordered today

King AM-Series Main Bearings MB5568AM

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

Part Number: KGB-MB5568AM

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

King AM-Series Main Bearings MB5278AM0.25

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 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

King AM-Series Main Bearings MB5227AM

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 26, 2026 if ordered today

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Estimated Ship Date: May 26, 2026 if ordered today

King AM-Series Main Bearings MB5514AM 010

Main Bearings, AM-Series, Full Groove, .010 in. Crankshaft Undersize, Bi Metal, Oldsmobile, 260, 307, 330, 350, 403

Part Number: KGB-MB5514AM010

Not Yet Reviewed

Estimated Ship Date: Jun 9, 2026 if ordered today

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Estimated Ship Date: Jun 9, 2026 if ordered today

King AM-Series Main Bearings MB5259AM

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

Part Number: KGB-MB5259AM

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Jun 3, 2026 if ordered today

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Estimated Ship Date: Jun 3, 2026 if ordered today

King AM-Series Main Bearings MB5514AM 030

Main Bearings, AM-Series, Full Groove, .030 in. Crankshaft Undersize, Bi Metal, Oldsmobile, 260, 307, 330, 350, 403

Part Number: KGB-MB5514AM030

Not Yet Reviewed

Estimated Ship Date: Jun 9, 2026 if ordered today

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Estimated Ship Date: Jun 9, 2026 if ordered today

King AM-Series Main Bearings MB5527AM

Main Bearings, AM-Series, 1/2 Groove, Standard Size, Bi Metal, Toyota, 1.5, 1.6, 1.8L, Set of 5

Part Number: KGB-MB5527AM

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

King AM-Series Main Bearings MB5568AM0.25

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

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

King AM-Series Main Bearings MB5278AM0.5

Main Bearings, AM-Series, Alecular Silicon, 0.50mm Crankshaft Undersize, Ford, 2.3, 2.5L, Set of 5

Part Number: KGB-MB5278AM05

Not Yet Reviewed

Estimated Ship Date: Jun 8, 2026 if ordered today

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Estimated Ship Date: Jun 8, 2026 if ordered today

King AM-Series Main Bearings MB5031AM

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: Jun 9, 2026 if ordered today

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Estimated Ship Date: Jun 9, 2026 if ordered today

King AM-Series Main Bearings MB 582AM0.5

Main Bearings, AM-Series, Full Groove, Alecular Silicon, 0.50mm. Crankshaft Undersize, Ford, 2.0L, 2.3L, Set of 5

Part Number: KGB-MB582AM05

Not Yet Reviewed

Estimated Ship Date: Jun 9, 2026 if ordered today

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Estimated Ship Date: Jun 9, 2026 if ordered today

King AM-Series Main Bearings MB5566AM

Main Bearings, King AM-Series Main Bearings, Stock Size, Alecular Silicon, Audi, Volkswagen, Sold as a Set of 5

Part Number: KGB-MB5566AM

Not Yet Reviewed

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King AM-Series Main Bearings MB5278AM0.75

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: Jun 10, 2026 if ordered today

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Estimated Ship Date: Jun 10, 2026 if ordered today

King AM-Series Main Bearings MB 612AM

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: Jun 9, 2026 if ordered today

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Estimated Ship Date: Jun 9, 2026 if ordered today

King AM-Series Main Bearings MB5269AM

Main Bearings, King AM-Series Main Bearings, Stock Size, Alecular Silicon, Audi, Volkswagen, Sold as a Set of 5

Part Number: KGB-MB5269AM

Not Yet Reviewed

Estimated Ship Date: May 26, 2026 if ordered today

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Estimated Ship Date: May 26, 2026 if ordered today

King AM-Series Main Bearings MB5304AM

Main Bearings, AM-Series, Alecular Silicon, Standard Size, Ford, Kia, Mazda, Mercury, Set of 5

Part Number: KGB-MB5304AM

Not Yet Reviewed

Estimated Ship Date: Jun 9, 2026 if ordered today

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Estimated Ship Date: Jun 9, 2026 if ordered today

King AM-Series Main Bearings MB5256AM

Main Bearings, King AM-Series Main Bearings, Stock Size, Bi-Metal, for Hyundai, Sold as a Set

Part Number: KGB-MB5256AM

Not Yet Reviewed

Estimated Ship Date: Jun 10, 2026 if ordered today

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Estimated Ship Date: Jun 10, 2026 if ordered today

King AM-Series Main Bearings MB5568AM0.75

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: Jun 9, 2026 if ordered today

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Estimated Ship Date: Jun 9, 2026 if ordered today

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