Availability
Main Bearings
Showing In Stock Items. Show All 55 Items.
Main Bearings, AM-Series, Full Groove, .010 in. Crankshaft Undersize, Bi Metal, Pontiac, 326, 350, 389, 400, Set of 5
Part Number: KGB-MB5523AM010
Not Yet Reviewed
Estimated Ship Date: Monday 4/27/2026 if shipped by air
Estimated Ship Date: Monday 4/27/2026 if shipped by air
Main Bearings, AM-Series, Full Groove, Standard Size, Bi Metal, Pontiac, 326, 350, 389, 400, Set of 5
Part Number: KGB-MB5523AM
Not Yet Reviewed
Estimated Ship Date: Monday 4/27/2026 if shipped by air
Estimated Ship Date: Monday 4/27/2026 if shipped by air
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: Monday 4/27/2026 if shipped by air
Estimated Ship Date: Monday 4/27/2026 if shipped by air
Main Bearings, H Series, 0.001 in. Extra Clearance, Standard Size, Alecular, Chevy, Big Block, Set of 5
Part Number: EW1-MS829HX
Not Yet Reviewed
Estimated Ship Date: Monday 4/27/2026 if shipped by air
Estimated Ship Date: Monday 4/27/2026 if shipped by air
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
Estimated Ship Date: Monday 4/27/2026 if shipped by air
Estimated Ship Date: Monday 4/27/2026 if shipped by air
Main Bearings, H Series, Standard Size, Alecular, Chevy, Small Block, Set of 5
Part Number: EW1-MS909H
Not Yet Reviewed
Estimated Ship Date: Monday 4/27/2026 if shipped by air
Estimated Ship Date: Monday 4/27/2026 if shipped by air
Main Bearings, H Series, 0.001 in. Extra Clearance, Standard Size, Alecular, 400 Small Block Chevy, Set of 5
Part Number: EW1-MS1038HX
Not Yet Reviewed
Estimated Ship Date: Monday 4/27/2026 if shipped by air
Estimated Ship Date: Monday 4/27/2026 if shipped by air
BEARING MAIN .010 134
Part Number: OMX-1746502
Estimated Ship Date: Jul 23, 2026 if ordered today
Estimated Ship Date: Jul 23, 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: Jul 22, 2026 if ordered today
Estimated Ship Date: Jul 22, 2026 if ordered today
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: Jul 20, 2026 if ordered today
Estimated Ship Date: Jul 20, 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: Jul 21, 2026 if ordered today
Estimated Ship Date: Jul 21, 2026 if ordered today
Main Bearings, H Series, Standard Size, Alecular, 400 Small Block Chevy, Set of 5
Part Number: EW1-MS1038H
Not Yet Reviewed
Estimated Ship Date: Monday 4/27/2026 if shipped by air
Estimated Ship Date: Monday 4/27/2026 if shipped by air
Main Bearings, AM-Series, 1/2 Groove, .060 in. Crankshaft Undersize, Bi Metal, Chevy, 265, 283, 302, 327, Set of 5
Part Number: KGB-MB554AM060
Not Yet Reviewed
Estimated Ship Date: Jul 21, 2026 if ordered today
Estimated Ship Date: Jul 21, 2026 if ordered today
Main Bearings, AM-Series, Alecular Silicon, 0.75mm Crankshaft Undersize, Nissan, 2.4L, 2.6L, 2.8L, Set of 7
Part Number: KGB-MB7732AM075
Not Yet Reviewed
Estimated Ship Date: Monday 4/27/2026 if shipped by air
Estimated Ship Date: Monday 4/27/2026 if shipped by air
Main Bearings, AM-Series, 1/2 Groove, .050 in. Undersize, Bi Metal, Chevy, 265, 283, 302, 327, Set of 5
Part Number: KGB-MB554AM050
Not Yet Reviewed
Estimated Ship Date: Jul 21, 2026 if ordered today
Estimated Ship Date: Jul 21, 2026 if ordered today
Main Bearings, H Series, Standard Size, Alecular, Ford, Small Block, Set of 5
Part Number: EW1-MS590H
Not Yet Reviewed
Estimated Ship Date: Monday 4/27/2026 if shipped by air
Estimated Ship Date: Monday 4/27/2026 if shipped by air
Main Bearings, H Series, Standard Size, Alecular, Chevy, Big Block, Set of 5
Part Number: EW1-MS829H
Not Yet Reviewed
Estimated Ship Date: Monday 4/27/2026 if shipped by air
Estimated Ship Date: Monday 4/27/2026 if shipped by air
Main Bearings, AM-Series, Alecular Silicon, 0.25mm Crankshaft Undersize, BMW, 2.8L, 3.2L, Set of 7
Part Number: KGB-MB770AM025
Not Yet Reviewed
Estimated Ship Date: Jul 21, 2026 if ordered today
Estimated Ship Date: Jul 21, 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: Jul 21, 2026 if ordered today
Estimated Ship Date: Jul 21, 2026 if ordered today
Main Bearings, AM-Series, Standard Size, Bi Metal, BMW, 2.8, 3.0L, L6, Set of 7
Part Number: KGB-MB770AM
Not Yet Reviewed
Estimated Ship Date: Jul 21, 2026 if ordered today
Estimated Ship Date: Jul 21, 2026 if ordered today
Main Bearings, AM-Series, Alecular Silicon, 1.00mm Crankshaft Undersize, Toyota, Set of 7
Part Number: KGB-MB787AM10
Not Yet Reviewed
Estimated Ship Date: Jul 21, 2026 if ordered today
Estimated Ship Date: Jul 21, 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: Jul 21, 2026 if ordered today
Estimated Ship Date: Jul 21, 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: Jul 21, 2026 if ordered today
Estimated Ship Date: Jul 21, 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: Jul 21, 2026 if ordered today
Estimated Ship Date: Jul 21, 2026 if ordered today
Main Bearings, AM-Series, .030 in. Crankshaft Undersize, Bi Metal, Ford, Mercury, 200, Set of 7
Part Number: KGB-MB762AM030
Not Yet Reviewed
Estimated Ship Date: Jul 21, 2026 if ordered today
Estimated Ship Date: Jul 21, 2026 if ordered today
Truck / SUV
Jeep®
Restoration
Stock Replacement
Late Model Muscle
Tools
Gifts, Clothing, & More
Circle Track
Street Rod
Powersports
Paint & Body
Marine
Jr Dragster