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Main Bearings
Showing In Stock Items. Show All 24 Items.
Main Bearings, SI-Series, Full Groove, .040 in. Crankshaft Undersize, Bi-metal, Silicon Aluminum, Ford, Set of 5
Part Number: KGB-MB5504SI040
Not Yet Reviewed
Estimated Ship Date: Jul 28, 2026 if ordered today
Estimated Ship Date: Jul 28, 2026 if ordered today
Main Bearing, Full Groove, .040 in. Crankshaft Undersize, Steel Backed, Aluminum Alloy, Ford, Mercury, 312, Set of 5
Part Number: KAA-MBS1717-040
Not Yet Reviewed
Estimated Ship Date: May 22, 2026 if ordered today
Estimated Ship Date: May 22, 2026 if ordered today
Main Bearing, Full Groove, .040 in. Crankshaft Undersize, Steel Backed, Aluminum Alloy, Chevy, 348, 409, Set of 5
Part Number: KAA-MBS2458-040
Not Yet Reviewed
Estimated Ship Date: May 27, 2026 if ordered today
Estimated Ship Date: May 27, 2026 if ordered today
Main Bearing, Full Groove, .040 in. Crankshaft Undersize, Steel Backed, Aluminum Alloy, Edsel, Ford, Mercury, 239, 256, 272, 292, Set of 5
Part Number: KAA-MBS1575-040
Not Yet Reviewed
Estimated Ship Date: May 27, 2026 if ordered today
Estimated Ship Date: May 27, 2026 if ordered today
Main Bearing, Full Groove, .040 in. Crankshaft Undersize, Steel Backed, Aluminum Alloy, Cadillac, 390, 429, Set of 5
Part Number: KAA-MBS2663-040
Not Yet Reviewed
Estimated Ship Date: May 27, 2026 if ordered today
Estimated Ship Date: May 27, 2026 if ordered today
Main Bearing, Full Groove, .040 in. Crankshaft Undersize, Steel Backed, Aluminum Alloy, DeSoto, Dodge, Plymouth, 241, 260, 270, 276, 291, Set of 5
Part Number: KAA-MBS1505-040
Not Yet Reviewed
Estimated Ship Date: May 27, 2026 if ordered today
Estimated Ship Date: May 27, 2026 if ordered today
Main Bearing, Full Groove, .040 in. Crankshaft Undersize, Steel Backed, Aluminum Alloy, Cadillac, 331, Set of 5
Part Number: KAA-MBS1329-040
Not Yet Reviewed
Estimated Ship Date: May 27, 2026 if ordered today
Estimated Ship Date: May 27, 2026 if ordered today
Main Bearing, Full Groove, .040 in. Crankshaft Undersize, Steel Backed, Aluminum Alloy, Oldsmobile, 303, 324, Set of 5
Part Number: KAA-MBS1241M040
Not Yet Reviewed
Estimated Ship Date: May 27, 2026 if ordered today
Estimated Ship Date: May 27, 2026 if ordered today
Main Bearing, Full Groove, .040 in. Crankshaft Undersize, Steel Backed, Aluminum Alloy, GMC, 228, 248, 270, Set of 4
Part Number: KAA-MBS929M040
Not Yet Reviewed
Estimated Ship Date: May 27, 2026 if ordered today
Estimated Ship Date: May 27, 2026 if ordered today
Main Bearing, Full Groove, .040 in. Crankshaft Undersize, Steel Backed, Aluminum Alloy, Ford, 215, 223, Set of 4
Part Number: KAA-MBS2525-040
Not Yet Reviewed
Estimated Ship Date: May 27, 2026 if ordered today
Estimated Ship Date: May 27, 2026 if ordered today
Main Bearing, Full Groove, .040 in. Crankshaft Undersize, Steel Backed, Aluminum Alloy, Ford, Mercury, 144, 170, 200, Set of 4
Part Number: KAA-MBS2518-040
Not Yet Reviewed
Estimated Ship Date: May 27, 2026 if ordered today
Estimated Ship Date: May 27, 2026 if ordered today
Main Bearing, Full Groove, .040 in. Crankshaft Undersize, Steel Backed, Aluminum Alloy, Dodge, Plymouth, 218, 230, Set of 4
Part Number: KAA-MBS120M040
Not Yet Reviewed
Estimated Ship Date: May 27, 2026 if ordered today
Estimated Ship Date: May 27, 2026 if ordered today
Main Bearing, Full Groove, .040 in. Crankshaft Undersize, Steel Backed, Aluminum Alloy, Buick, 401, 425, Set of 5
Part Number: KAA-MBS2664-040
Not Yet Reviewed
Estimated Ship Date: May 27, 2026 if ordered today
Estimated Ship Date: May 27, 2026 if ordered today
Main Bearing, Full Groove, .040 in. Crankshaft Undersize, Steel Backed, Aluminum Alloy, Buick, 264, 322, Set of 5
Part Number: KAA-MBS1555-040
Not Yet Reviewed
Estimated Ship Date: May 27, 2026 if ordered today
Estimated Ship Date: May 27, 2026 if ordered today
Main Bearing, Full Groove, .040 in. Crankshaft Undersize, Steel Backed, Aluminum Alloy, Cadillac, 368, 425, 472, 500, Set of 5
Part Number: KAA-MBS2970-040
Not Yet Reviewed
Estimated Ship Date: May 27, 2026 if ordered today
Estimated Ship Date: May 27, 2026 if ordered today
Main Bearing, Full Groove, .040 in. Crankshaft Undersize, Steel Backed, Aluminum Alloy, Chrysler, DeSoto, 228, 237, 242, 251, 265, Set of 4
Part Number: KAA-MBS327M040
Not Yet Reviewed
Estimated Ship Date: May 27, 2026 if ordered today
Estimated Ship Date: May 27, 2026 if ordered today
