Gearhead Gifts - Find the Perfect Gift for the Gearhead on Your List!

Gearhead Gifts - Find the Perfect Gift for the Gearhead on Your List!

It's the Season for Savings - Shop Holiday Deals Now!

Main Bearings

Individual Parts

Results 1 - 25 of 40

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

Part Number: KGB-MB438AM

Not Yet Reviewed

Estimated Ship Date: Feb 11, 2026 if ordered today

...Loading

Estimated Ship Date: Feb 11, 2026 if ordered today

Main Bearings, AM-Series, 1/2 Groove, .020 in. Crankshaft Undersize, Bi Metal, Chrysler, 170, 198, 225, Set of 4

Part Number: KGB-MB438AM020

Not Yet Reviewed

Estimated Ship Date: Monday 11/17/2025

...Loading

Estimated Ship Date: Monday 11/17/2025

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

Part Number: KGB-MB427AM

Not Yet Reviewed

Estimated Ship Date: Feb 11, 2026 if ordered today

...Loading

Estimated Ship Date: Feb 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: Feb 10, 2026 if ordered today

...Loading

Estimated Ship Date: Feb 10, 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: Feb 10, 2026 if ordered today

...Loading

Estimated Ship Date: Feb 10, 2026 if ordered today

Main Bearings, AM-Series, Alecular Silicon, 0.25mm Crankshaft Undersize, Lexus, Toyota, 2.5, 3.0, 3.4L, Set of 4

Part Number: KGB-MB4012AM025

Not Yet Reviewed

Estimated Ship Date: Feb 11, 2026 if ordered today

...Loading

Estimated Ship Date: Feb 11, 2026 if ordered today

Main Bearings, AM-Series, Alecular Silicon, 0.25mm Crankshaft Undersize, Kia, Mitsubishi, Set of 4

Part Number: KGB-MB4050AM025

Not Yet Reviewed

Estimated Ship Date: Feb 11, 2026 if ordered today

...Loading

Estimated Ship Date: Feb 11, 2026 if ordered today

Main Bearings, AM-Series, Alecular Silicon, 1.50mm Crankshaft Undersize, Chevy, 2.8L, Set of 4

Part Number: KGB-MB427AM15

Not Yet Reviewed

Estimated Ship Date: Feb 11, 2026 if ordered today

...Loading

Estimated Ship Date: Feb 11, 2026 if ordered today

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

Part Number: KGB-MB438AM040

Not Yet Reviewed

Estimated Ship Date: Feb 11, 2026 if ordered today

...Loading

Estimated Ship Date: Feb 11, 2026 if ordered today

Main Bearings, AM-Series, Alecular Silicon, 1.25mm Crankshaft Undersize, Chevy, 2.8L, Set of 4

Part Number: KGB-MB427AM125

Not Yet Reviewed

Estimated Ship Date: Feb 11, 2026 if ordered today

...Loading

Estimated Ship Date: Feb 11, 2026 if ordered today

Main Bearings, AM-Series, Alecular Silicon, 0.75mm Crankshaft Undersize, Lexus, Toyota, 3.0, 3.3L, Set of 4

Part Number: KGB-MB4011AM075

Not Yet Reviewed

Estimated Ship Date: Feb 11, 2026 if ordered today

...Loading

Estimated Ship Date: Feb 11, 2026 if ordered today

Main Bearings, AM-Series, Alecular Silicon, 1.00mm Crankshaft Undersize, Lexus, Toyota, 3.0, 3.3L, Set of 4

Part Number: KGB-MB4011AM10

Not Yet Reviewed

Estimated Ship Date: Feb 11, 2026 if ordered today

...Loading

Estimated Ship Date: Feb 11, 2026 if ordered today

Main Bearings, AM-Series, Alecular Silicon, 1.00mm Crankshaft Undersize, Lexus, Toyota, 2.5, 3.0, 3.4L, Set of 4

Part Number: KGB-MB4012AM10

Not Yet Reviewed

Estimated Ship Date: Feb 11, 2026 if ordered today

...Loading

Estimated Ship Date: Feb 11, 2026 if ordered today

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

Part Number: KGB-MB4050AM10

Not Yet Reviewed

Estimated Ship Date: Feb 11, 2026 if ordered today

...Loading

Estimated Ship Date: Feb 11, 2026 if ordered today

Main Bearings, AM-Series, Alecular Silicon, 1.00mm Crankshaft Undersize, Daihatsu, 1.0L, Set of 4

Part Number: KGB-MB416AM10

Not Yet Reviewed

Estimated Ship Date: Feb 11, 2026 if ordered today

...Loading

Estimated Ship Date: Feb 11, 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: Feb 11, 2026 if ordered today

...Loading

Estimated Ship Date: Feb 11, 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: Feb 11, 2026 if ordered today

...Loading

Estimated Ship Date: Feb 11, 2026 if ordered today

Main Bearings, AM-Series, Full Groove, .050 in. Crankshaft Undersize, Bi Metal, Ford, 144, 170, 200, Set of 4

Part Number: KGB-MB409AM050

Not Yet Reviewed

Estimated Ship Date: Feb 11, 2026 if ordered today

...Loading

Estimated Ship Date: Feb 11, 2026 if ordered today

Main Bearings, AM-Series, Alecular Silicon, 1.00mm Crankshaft Undersize, Suzuki, 1.0L, Set of 4

Part Number: KGB-MB454AM10

Not Yet Reviewed

Estimated Ship Date: Feb 11, 2026 if ordered today

...Loading

Estimated Ship Date: Feb 11, 2026 if ordered today

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

Part Number: KGB-MB4011AM

Not Yet Reviewed

Estimated Ship Date: Feb 11, 2026 if ordered today

...Loading

Estimated Ship Date: Feb 11, 2026 if ordered today

Main Bearings, AM-Series, Alecular Silicon, 0.25mm Crankshaft Undersize, Lexus, Toyota, 3.0, 3.3L, Set of 4

Part Number: KGB-MB4011AM025

Not Yet Reviewed

Estimated Ship Date: Feb 11, 2026 if ordered today

...Loading

Estimated Ship Date: Feb 11, 2026 if ordered today

Main Bearings, AM-Series, Alecular Silicon, 1.00mm Crankshaft Undersize, for use on Acura®, Honda®, Isuzu, Set of 4

Part Number: KGB-MB4010AM10

Not Yet Reviewed

Estimated Ship Date: Feb 11, 2026 if ordered today

...Loading

Estimated Ship Date: Feb 11, 2026 if ordered today

Main Bearings, 3/4 Groove, Standard Size, Bi Metal, Alecular Alloy, Set of 4

Part Number: KGB-MB4050AM

Not Yet Reviewed

Estimated Ship Date: Feb 11, 2026 if ordered today

...Loading

Estimated Ship Date: Feb 11, 2026 if ordered today

Main Bearings, Full Groove, Standard Size, Bi Metal, Alecular Alloy, Set of 4

Part Number: KGB-MB4010AM

Not Yet Reviewed

Estimated Ship Date: Feb 11, 2026 if ordered today

...Loading

Estimated Ship Date: Feb 11, 2026 if ordered today

Main Bearings, AM-Series, Alecular Silicon, 0.25mm Crankshaft Undersize, Suzuki, 1.0L, Set of 4

Part Number: KGB-MB454AM025

Not Yet Reviewed

Estimated Ship Date: Feb 11, 2026 if ordered today

...Loading

Estimated Ship Date: Feb 11, 2026 if ordered today

Modal Header

Call To Order

This is a custom order part. You can order this part by Contacting Us.