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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.

Showing In Stock Items. Show All 53 Items.

Results 1 - 25 of 39

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: Monday 1/26/2026

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Estimated Ship Date: Monday 1/26/2026

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: Monday 1/26/2026

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Estimated Ship Date: Monday 1/26/2026

King AM-Series Main Bearings for 1985-1995 4RUNNER, 1983-1985 CELICA, 1984-1995 PICKUP - MB 506AM0.25

Main Bearings, AM-Series, Alecular Silicon, 0.25mm Crankshaft Undersize, Toyota, 2.2, 2.4L, Set of 5

Part Number: KGB-MB506AM025

Not Yet Reviewed

Estimated Ship Date: Apr 21, 2026 if ordered today

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Estimated Ship Date: Apr 21, 2026 if ordered today

King AM-Series Main Bearings for 1993-1997 PROBE, MX-6, 1993-2002 626 - MB5171AM

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: Monday 1/26/2026

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Estimated Ship Date: Monday 1/26/2026

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: Apr 22, 2026 if ordered today

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Estimated Ship Date: Apr 22, 2026 if ordered today

King AM-Series Main Bearings MB3305AM0.75

Main Bearings, King AM-Series Main Bearings, .030 in., .75 mm Crankshaft Undersize, Alecular Silicon, Datsun, Sold as a Set of 3

Part Number: KGB-MB3305AM075

Not Yet Reviewed

Estimated Ship Date: Monday 1/26/2026

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Estimated Ship Date: Monday 1/26/2026

King AM-Series Main Bearings MB5373AM

Crankshaft Main Bearings NISSAN QG18DE GA16DE

Part Number: KGB-MB5373AM

Not Yet Reviewed

Estimated Ship Date: Apr 21, 2026 if ordered today

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Estimated Ship Date: Apr 21, 2026 if ordered today

King AM-Series Main Bearings MB5256AM0.5

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

Part Number: KGB-MB5256AM05

Not Yet Reviewed

Estimated Ship Date: Monday 1/26/2026

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Estimated Ship Date: Monday 1/26/2026

King AM-Series Main Bearings MB5540AM

Main Bearings, AM-Series, 3/4 Groove, Standard Size, Bi Metal, Isuzu, 1.5, 1.6L, Set of 5

Part Number: KGB-MB5540AM

Not Yet Reviewed

Estimated Ship Date: Monday 1/26/2026

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Estimated Ship Date: Monday 1/26/2026

King AM-Series Main Bearings MB5285AM

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

Part Number: KGB-MB5285AM

Not Yet Reviewed

Estimated Ship Date: Monday 1/26/2026

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Estimated Ship Date: Monday 1/26/2026

King AM-Series Main Bearings MB5525AM

Main Bearings, AM-Series, Full Groove, Standard Size, Bi Metal, Ford, 1.6L, Set of 5

Part Number: KGB-MB5525AM

Not Yet Reviewed

Estimated Ship Date: Monday 1/26/2026

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Estimated Ship Date: Monday 1/26/2026

King AM-Series Main Bearings MB5525AM0.25

Main Bearings, AM-Series, Alecular Silicon, 0.25mm Crankshaft Undersize, Ford, 1.6L, Set of 5

Part Number: KGB-MB5525AM025

Not Yet Reviewed

Estimated Ship Date: Monday 1/26/2026

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Estimated Ship Date: Monday 1/26/2026

King AM-Series Main Bearings MB5537AM

Main Bearings, AM-Series, Full Groove, Standard Size, Bi Metal, Mazda, 1.5, 1.6, 1.8L, Set of 5

Part Number: KGB-MB5537AM

Not Yet Reviewed

Estimated Ship Date: Monday 1/26/2026

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Estimated Ship Date: Monday 1/26/2026

King AM-Series Main Bearings MB5185AM 030

Main Bearing Set

Part Number: KGB-MB5185AM030

Not Yet Reviewed

Estimated Ship Date: Apr 21, 2026 if ordered today

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Estimated Ship Date: Apr 21, 2026 if ordered today

King AM-Series Main Bearings MB5382AM0.75

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: Apr 21, 2026 if ordered today

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Estimated Ship Date: Apr 21, 2026 if ordered today

King AM-Series Main Bearings MB4018AM 020

Main Bearings, AM-Series, 1/2 Groove, .020 in. Undersize, Bi Metal, Buick 1994, 3.8L, V6, Set 4

Part Number: KGB-MB4018AM020

Not Yet Reviewed

Estimated Ship Date: Apr 21, 2026 if ordered today

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Estimated Ship Date: Apr 21, 2026 if ordered today

King AM-Series Main Bearings MB 435AM 020

Main Bearings, AM-Series, 1/2 Groove, .020 in. Undersize, Bi Metal, Ford, Reliant, 2.8L, Set of 4

Part Number: KGB-MB435AM020

Not Yet Reviewed

Estimated Ship Date: Apr 21, 2026 if ordered today

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Estimated Ship Date: Apr 21, 2026 if ordered today

King AM-Series Main Bearings MB 435AM 030

Main Bearings, AM-Series, 1/2 Groove, .030 in. Undersize, Bi Metal, Ford, Reliant, 2.8L, Set of 4

Part Number: KGB-MB435AM030

Not Yet Reviewed

Estimated Ship Date: Apr 21, 2026 if ordered today

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Estimated Ship Date: Apr 21, 2026 if ordered today

King AM-Series Main Bearings MB 435AM 040

Main Bearings, AM-Series, 1/2 Groove, .040 in. Undersize, Bi Metal, Ford, Reliant, 2.8L, Set of 4

Part Number: KGB-MB435AM040

Not Yet Reviewed

Estimated Ship Date: Apr 21, 2026 if ordered today

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Estimated Ship Date: Apr 21, 2026 if ordered today

King AM-Series Main Bearings MB 480AM 030

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: Apr 21, 2026 if ordered today

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Estimated Ship Date: Apr 21, 2026 if ordered today

King AM-Series Main Bearings for 1985-1995 4RUNNER, 1983-1985 CELICA, 1984-1995 PICKUP - MB 506AM0.5

Main Bearings, AM-Series, Alecular Silicon, 0.50mm Crankshaft Undersize, Toyota, 2.2, 2.4L, Set of 5

Part Number: KGB-MB506AM05

Not Yet Reviewed

Estimated Ship Date: Apr 21, 2026 if ordered today

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Estimated Ship Date: Apr 21, 2026 if ordered today

King AM-Series Main Bearings MB 443AM 050

Main Bearings, AM-Series, 1/2 Groove, .050 in. Undersize, Bi Metal, Buick, 3.0, 3.2, 3.8, 3.8L, Set of 4

Part Number: KGB-MB443AM050

Not Yet Reviewed

Estimated Ship Date: Apr 21, 2026 if ordered today

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Estimated Ship Date: Apr 21, 2026 if ordered today

King AM-Series Main Bearings MB 443AM 060

Main Bearings, AM-Series, 1/2 Groove, .060 in. Undersize, Bi Metal, Buick, 3.0, 3.2, 3.8, 3.8L, Set of 4

Part Number: KGB-MB443AM060

Not Yet Reviewed

Estimated Ship Date: Apr 21, 2026 if ordered today

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Estimated Ship Date: Apr 21, 2026 if ordered today

King AM-Series Main Bearings CR4655AM

Rod Bearings, King AM-Series Main Bearings, Stock Size, Alecular Silicon, for Hyundai, for Kia, Sold as a Set of 4

Part Number: KGB-CR4655AM

Not Yet Reviewed

Estimated Ship Date: Apr 22, 2026 if ordered today

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Estimated Ship Date: Apr 22, 2026 if ordered today

King AM-Series Main Bearings MB5554AM0.5

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

Part Number: KGB-MB5554AM05

Not Yet Reviewed

Estimated Ship Date: Apr 22, 2026 if ordered today

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Estimated Ship Date: Apr 22, 2026 if ordered today

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