Availability
1978 Main Bearings
Main Bearings, SI-Series, Full Groove, .050 in. Crankshaft Undersize, Bi-metal, Silicon Aluminum, Ford, Set of 5
Part Number: KGB-MB5504SI050
Not Yet Reviewed
Estimated Ship Date: Jun 24, 2026 if ordered today
Estimated Ship Date: Jun 24, 2026 if ordered today
Main Bearings, AM-Series, Alecular Silicon, 0.25mm Crankshaft Undersize, for use on Acura®, Honda®, Set of 5
Part Number: KGB-MB5168AM025
Not Yet Reviewed
Estimated Ship Date: Jun 24, 2026 if ordered today
Estimated Ship Date: Jun 24, 2026 if ordered today
Engine Crankshaft Main Bearing Set 64-90 BUI/CAD/CHV/OLD/PON 4.3L/5.0L/5.4L/5.7L/6.6L
Part Number: EGN-BC314J020
Not Yet Reviewed
Estimated Ship Date: Apr 23, 2026 if ordered today
Estimated Ship Date: Apr 23, 2026 if ordered today
Engine Crankshaft Main Bearing Set 67-02 BUI/CAD/CHV/GM/GMC/OLD/PON 4.3L/4.4L/4.6L/4.9L/5.0L/5.3L/5.7L
Part Number: EGN-BC424J020
Not Yet Reviewed
Estimated Ship Date: Apr 23, 2026 if ordered today
Estimated Ship Date: Apr 23, 2026 if ordered today
Engine Crankshaft Main Bearing Set 60-83 FRD/MER 2.4L/2.8L/3.3L
Part Number: EGN-BC309J030
Not Yet Reviewed
Estimated Ship Date: Apr 23, 2026 if ordered today
Estimated Ship Date: Apr 23, 2026 if ordered today
Main Bearing Set;
Part Number: SLP-4663MA1
Not Yet Reviewed
Estimated Ship Date: Apr 15, 2026 if ordered today
Estimated Ship Date: Apr 15, 2026 if ordered today
Main Bearing Set;
Part Number: SLP-4663MA60
Not Yet Reviewed
Estimated Ship Date: Apr 15, 2026 if ordered today
Estimated Ship Date: Apr 15, 2026 if ordered today
Main Bearing Set;
Part Number: SLP-4289M30
Not Yet Reviewed
Estimated Ship Date: Apr 15, 2026 if ordered today
Estimated Ship Date: Apr 15, 2026 if ordered today
Main Bearing Set;
Part Number: SLP-4289M40
Not Yet Reviewed
Estimated Ship Date: Apr 15, 2026 if ordered today
Estimated Ship Date: Apr 15, 2026 if ordered today
Main Bearings, Direct Replacement, 0.020 in. Crankshaft Undersize, Buick, Cadillac, Chevrolet, GMC, Oldsmobile, Pontiac, Set of 5
Part Number: SLP-6688M20
Not Yet Reviewed
Estimated Ship Date: Apr 15, 2026 if ordered today
Estimated Ship Date: Apr 15, 2026 if ordered today
Main Bearings, 0.040 in. Undersize, Bi Metal, 1/2 Groove, Ford, 351W, 351M, 400, Set of 5
Part Number: SLP-5078MA40
Not Yet Reviewed
Estimated Ship Date: Apr 15, 2026 if ordered today
Estimated Ship Date: Apr 15, 2026 if ordered today
Main Bearings, HP-Series, 3/4 Groove, .001 in. Undersize, Bi Metal, Chevy, Big Block, Set of 5
Part Number: KGB-MB5164HP001
Not Yet Reviewed
Estimated Ship Date: Jun 24, 2026 if ordered today
Estimated Ship Date: Jun 24, 2026 if ordered today
Main Bearings, HP-Series, 3/4 Groove, .010 in. Undersize, Bi Metal, Chevy, Big Block, Set of 5
Part Number: KGB-MB5164HP010
Not Yet Reviewed
Estimated Ship Date: Jun 24, 2026 if ordered today
Estimated Ship Date: Jun 24, 2026 if ordered today
Main Bearings, HP-Series, 3/4 Groove, .001 in. Undersize, Bi Metal, Ford, 351W, Set of 5
Part Number: KGB-MB5392HP001
Not Yet Reviewed
Estimated Ship Date: Jun 24, 2026 if ordered today
Estimated Ship Date: Jun 24, 2026 if ordered today
Main Bearings, 1/2 Groove, .030 in. Undersize, Bi-metal, Silicon Aluminum, Ford, Set of 5
Part Number: KGB-MB5512SI030
Not Yet Reviewed
Estimated Ship Date: Jun 24, 2026 if ordered today
Estimated Ship Date: Jun 24, 2026 if ordered today
Main Bearings, 1/2 Groove, .020 in. Undersize, Bi-metal, Silicon Aluminum, Ford, Set of 5
Part Number: KGB-MB5512SI020
Not Yet Reviewed
Estimated Ship Date: Jun 24, 2026 if ordered today
Estimated Ship Date: Jun 24, 2026 if ordered today
Main Bearings, 1/2 Groove, .060 in. Undersize, Bi-metal, Silicon Aluminum, Ford, Set of 5
Part Number: KGB-MB5512SI060
Not Yet Reviewed
Estimated Ship Date: Jun 24, 2026 if ordered today
Estimated Ship Date: Jun 24, 2026 if ordered today
Main Bearings, SI-Series, Full Groove, .020 in. Crankshaft Undersize, Bi-metal, Silicon Aluminum, Ford, Set of 4
Part Number: KGB-MB431SI020
Estimated Ship Date: Jun 24, 2026 if ordered today
Estimated Ship Date: Jun 24, 2026 if ordered today
Main Bearings, SI-Series, Full Groove, .010 in. Crankshaft Undersize, Bi-metal, Silicon Aluminum, Ford, Set of 4
Part Number: KGB-MB431SI010
Not Yet Reviewed
Estimated Ship Date: Jun 24, 2026 if ordered today
Estimated Ship Date: Jun 24, 2026 if ordered today
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: Jun 24, 2026 if ordered today
Estimated Ship Date: Jun 24, 2026 if ordered today
Main Bearings, SI-Series, Silicon Aluminum, 0.060 in. Crankshaft Undersize, Ford, 429, 460, Set of 5
Part Number: KGB-MB5650SI060
Not Yet Reviewed
Estimated Ship Date: Jun 24, 2026 if ordered today
Estimated Ship Date: Jun 24, 2026 if ordered today
Main Bearings, SI-Series, .030 in. Undersize, Bi-metal, Silicon Aluminum, Ford, 240, 250, 300, Set of 7
Part Number: KGB-MB760SI030
Not Yet Reviewed
Estimated Ship Date: Jun 24, 2026 if ordered today
Estimated Ship Date: Jun 24, 2026 if ordered today
Main Bearings, Direct Replacement, Stock Size, for Nissan, 2.0L, 2.2L, 2.4L, Set of 5
Part Number: SLP-7139M
Not Yet Reviewed
Estimated Ship Date: Apr 15, 2026 if ordered today
Estimated Ship Date: Apr 15, 2026 if ordered today
Engine Crankshaft Main Bearing Set 67-96 FRD/MER 3.9L/4.1L/4.9L
Part Number: EGN-BC305J010
Not Yet Reviewed
Estimated Ship Date: Apr 20, 2026 if ordered today
Estimated Ship Date: Apr 20, 2026 if ordered today
Engine Crankshaft Main Bearing Set 78-14 CHV/GM/GMC/IZU/OLD/PON 3.3L/3.8L/4.3L
Part Number: EGN-BC317J020
Not Yet Reviewed
Estimated Ship Date: Apr 20, 2026 if ordered today
Estimated Ship Date: Apr 20, 2026 if ordered today
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