Availability
1978 Main Bearings
Main Bearings, XP-Series, Copper/Lead/Nickel, 0.020 in. Undersize, Chevy, Big Block, Set of 5
Part Number: KGB-MB556XP020
Not Yet Reviewed
Estimated Ship Date: Jun 24, 2026 if ordered today
Estimated Ship Date: Jun 24, 2026 if ordered today
Main Bearings, Aluglide, A-Series, Grooved, Bi-Metal Design, 0.01 in./0.25mm Undersize Crankshaft, Ford, Omega, 4.2L, 4.7L, 5.0L, 5.7L, Set of 5
Part Number: PEB-5M590A-10
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Main Bearings, .002 in. Over Size, Tri Metal, 1/2 Groove, Chevrolet, Small Block, Set of 5
Part Number: SLP-4663M2
Not Yet Reviewed
Estimated Ship Date: Apr 20, 2026 if ordered today
Estimated Ship Date: Apr 20, 2026 if ordered today
Main Bearings, SI-Series, 1/2 Groove, .030 in. Crankshaft Undersize, Bi-metal, Aluminum Silicon, Chevy, 400, Set of 5
Part Number: KGB-MB509SI030
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Main Bearings, SI-Series, 1/2 Groove, .020 in. Crankshaft Undersize, Bi-metal, Aluminum Silicon, Jeep, Chrysler, Set of 5
Part Number: KGB-MB517SI020
Not Yet Reviewed
Estimated Ship Date: Jun 29, 2026 if ordered today
Estimated Ship Date: Jun 29, 2026 if ordered today
Main Bearings, AM-Series, 1/2 Groove, Standard Size, Bi Metal, AMC, Jeep, 290-401, Set of 5
Part Number: KGB-MB5518AM
Estimated Ship Date: Jun 29, 2026 if ordered today
Estimated Ship Date: Jun 29, 2026 if ordered today
Main Bearings, Competition Series, 0.010 Crankshaft Undersize, Tri Metal, 3/4 Groove, Chevy, 7.4L, Set of 5
Part Number: SLP-141M10
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Main Bearings, HP-Series, 1/2 Groove, 0.020 in. Crankshaft Undersize, Bi Metal, Chrysler, Dodge, Plymouth, Big Block, Set of 5
Part Number: KGB-MB555HP020
Not Yet Reviewed
Estimated Ship Date: Jun 29, 2026 if ordered today
Estimated Ship Date: Jun 29, 2026 if ordered today
Estimated Ship Date: Jun 29, 2026 if ordered today
Main Bearings, King SI-Series Main Bearings, Stock Size, Bi-Metal, Chevy, Sold as a Set of 5
Part Number: KGB-MB5532SI
Not Yet Reviewed
Estimated Ship Date: Jun 29, 2026 if ordered today
Estimated Ship Date: Jun 29, 2026 if ordered today
Main Bearings, .040 in. Over Size, Tri Metal, 1/2 Groove, Chevrolet, Small Block, Set of 5
Part Number: SLP-4663M40
Not Yet Reviewed
Estimated Ship Date: Apr 15, 2026 if ordered today
Estimated Ship Date: Apr 15, 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: Jun 29, 2026 if ordered today
Estimated Ship Date: Jun 29, 2026 if ordered today
Main Bearings, 1/2 Groove, .002 in. Crankshaft Undersize, Bi Metal, Jeep, 2.5, 3.8, 4.0, 4.2L, Pair
Part Number: CWA-J8133682
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: 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: Jun 29, 2026 if ordered today
Estimated Ship Date: Jun 29, 2026 if ordered today
Crankshaft Main Bearings,GENERAL MOTORS 326, 350, 389, 400 3" Main
Part Number: KGB-MB5511HP020
Not Yet Reviewed
Estimated Ship Date: Jun 29, 2026 if ordered today
Estimated Ship Date: Jun 29, 2026 if ordered today
Main Bearings, XP-Series, Copper/Lead/Nickel, 0.020 in. Undersize, Chevy, Big Block, Set of 5
Part Number: KGB-MB556XP020X
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Main Bearings, 0.030 in. Crankshaft Undersize, Bi Metal, 3/4 Groove, Buick, V6, 3.0L, 3.8L, Set of 4
Part Number: SLP-7144MA30
Not Yet Reviewed
Estimated Ship Date: Apr 14, 2026 if ordered today
Estimated Ship Date: Apr 14, 2026 if ordered today
Main Bearings, Race Series Main Bearing Sets, 0.010 in. Crankshaft Undersize, Tri-metal Copper-lead Alloy, Chevrolet, Big Block, Set of 5
Part Number: SUM-829HC010
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Main Bearings, Race Series Main Bearing Sets, 0.001 in. Crankshaft Undersize, Tri-metal Copper-lead Alloy, Ford, Small Block Windsor 302, Set of 5
Part Number: SUM-590HXCS
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Main Bearings, Aluglide, A-Series, Grooved, Bi-Metal Design, Aluminum/Tin/Silicon, Stock Size Crankhaft, Chrysler, Plymouth, 5.9L, Set of 5
Part Number: PEB-5M1266A-STD
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Engine Crankshaft Main Bearing Set 59-03 CHR/DOD/JEP/PLY 5.2L
Part Number: EGN-BC320JSTD
Not Yet Reviewed
Estimated Ship Date: Apr 24, 2026 if ordered today
Estimated Ship Date: Apr 24, 2026 if ordered today
Main Bearing Set
Part Number: KGB-MB752SI010
Not Yet Reviewed
Estimated Ship Date: Jun 29, 2026 if ordered today
Estimated Ship Date: Jun 29, 2026 if ordered today
Main Bearings, HP-Series, 3/4 Groove, .011 in. Undersize, Bi Metal, Ford, 351W, Set of 5
Part Number: KGB-MB5392HP011
Not Yet Reviewed
Estimated Ship Date: Jun 29, 2026 if ordered today
Estimated Ship Date: Jun 29, 2026 if ordered today
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: Jun 29, 2026 if ordered today
Estimated Ship Date: Jun 29, 2026 if ordered today
Main Bearings, King SI-Series Main Bearings, Stock Size, Bi-Metal, Chevy, Sold as a Set of 4
Part Number: KGB-MB4530SI
Not Yet Reviewed
Estimated Ship Date: Jun 29, 2026 if ordered today
Estimated Ship Date: Jun 29, 2026 if ordered today
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