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King AM-Series Main Bearings

4.19 out of 5 stars 31 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 58

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: Today

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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: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

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: Today

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Main Bearings, AM-Series, Full Groove, .010 in. Crankshaft Undersize, Bi Metal, Pontiac, 326, 350, 389, 400, Set of 5

Part Number: KGB-MB5523AM010

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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: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

Main Bearings, AM-Series, .010 in. Crankshaft Undersize, Bi Metal, Ford, Mercury, 200, L6, Set of 7

Part Number: KGB-MB785AM010

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

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: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

Main Bearings, AM-Series, .010 in. Crankshaft Undersize, Bi Metal, Ford, Mercury, 200, Set of 7

Part Number: KGB-MB762AM010

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

Main Bearings, AM-Series, 1/2 Groove, .040 in. Crankshaft Undersize, Bi Metal, Chevy, 265, 283, 302, 327, Set of 5

Part Number: KGB-MB554AM040

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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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: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

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: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

Main Bearings, AM-Series, 1/2 Groove, .040 in. Crankshaft Undersize, Chrysler, Dodge, Plymouth, 170, 198, 225, Set of 4

Part Number: KGB-MB407AM040

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

Main Bearings, AM-Series, Alecular Silicon, 0.75mm Crankshaft Undersize, Subaru, 1.2L, Set of 4

Part Number: KGB-MB461AM075

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

Main Bearings, Full Groove, .060 in. Crankshaft Undersize, Bi Metal, Alecular Alloy, AMC, Willys, Set of 3

Part Number: KGB-MB319AM060

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

Main Bearings, Full Groove, .070 in. Crankshaft Undersize, Bi Metal, Alecular Alloy, AMC, Willys, Set of 3

Part Number: KGB-MB319AM070

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Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

Main Bearings, AM-Series, Alecular Silicon, 1.00mm Crankshaft Undersize, Toyota, 1.9, 2.0L, Set of 5

Part Number: KGB-MB547AM10

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

Main Bearings, AM-Series, Alecular Silicon, 1.50mm Crankshaft Undersize, Toyota, 1.9, 2.0L, Set of 5

Part Number: KGB-MB547AM15

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

Main Bearings, AM-Series, Alecular Silicon, 0.75mm Crankshaft Undersize, Toyota, 1.9, 2.0L, Set of 5

Part Number: KGB-MB547AM075

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

Main Bearings, AM-Series, 1/2 Groove, Standard Size, Bi Metal, Austin, MG, 1.8L, Set 5

Part Number: KGB-MB520AM

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

Main Bearings, AM-Series, 1/2 Groove, .010 in. Crankshaft Undersize, Bi Metal, Austin, MG, 1.8L, Set 5

Part Number: KGB-MB520AM010

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

Main Bearings, AM-Series, 1/2 Groove, .020 in. Crankshaft Undersize, Bi Metal, Austin, MG, 1.8L, Set 5

Part Number: KGB-MB520AM020

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

Main Bearings, AM-Series, 1/2 Groove, .040 in. Crankshaft Undersize, Bi Metal, Austin, MG, 1.8L, Set 5

Part Number: KGB-MB520AM040

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

Main Bearings, AM-Series, Alecular Silicon, 1.25mm Crankshaft Undersize, Mercedes-Benz, 2.2, 2.3L, Set of 5

Part Number: KGB-MB536AM125

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

Main Bearings, AM-Series, Alecular Silicon, 0.50mm Crankshaft Undersize, Mercedes-Benz, 2.2, 2.3L, Set of 5

Part Number: KGB-MB536AM05

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

Main Bearings, AM-Series, 1/2 Groove, .030 in. Crankshaft Undersize, Bi Metal, Austin, MG, 1.8L, Set 5

Part Number: KGB-MB520AM030

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

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