Availability
1978 Main Bearings
Main Bearing Set;
Part Number: SLP-4289M30
Not Yet Reviewed
Estimated Ship Date: Feb 27, 2026 if ordered today
Estimated Ship Date: Feb 27, 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: Feb 27, 2026 if ordered today
Estimated Ship Date: Feb 27, 2026 if ordered today
Main Bearing Set;
Part Number: SLP-4663MA40
Not Yet Reviewed
Estimated Ship Date: Feb 27, 2026 if ordered today
Estimated Ship Date: Feb 27, 2026 if ordered today
Main Bearings, 0.040 in. Crankshaft Undersize, Tri Metal, Full Groove, Ford, L6, 4.9L, Set of 7
Part Number: SLP-4916M40
Not Yet Reviewed
Estimated Ship Date: Feb 27, 2026 if ordered today
Estimated Ship Date: Feb 27, 2026 if ordered today
Main Bearings, 0.040 in. Crankshaft Undersize, Bi Metal, 3/4 Groove, Chevy, V6, 3.3L, 3.8L, 4.3L, Set of 4
Part Number: SLP-5085MA40
Not Yet Reviewed
Estimated Ship Date: Feb 27, 2026 if ordered today
Estimated Ship Date: Feb 27, 2026 if ordered today
Main Bearings, HP-Series, Silicon Aluminum, 0.010 in. Crankshaft Undersize, Ford, Lincoln, Mercury, Set of 5
Part Number: KGB-MB529HP010X
Not Yet Reviewed
Estimated Ship Date: May 8, 2026 if ordered today
Estimated Ship Date: May 8, 2026 if ordered today
Main Bearings, King SI-Series Main Bearings, .060 in., 1.52 mm Crankshaft Undersize, Bi-Metal, Chevy, Sold as a Set of 5
Part Number: KGB-MB5532SI060
Not Yet Reviewed
Estimated Ship Date: May 8, 2026 if ordered today
Estimated Ship Date: May 8, 2026 if ordered today
Crankshaft Main Bearings MITSUBISHI 4G52
Part Number: KGB-MB577AM025
Not Yet Reviewed
Estimated Ship Date: May 8, 2026 if ordered today
Estimated Ship Date: May 8, 2026 if ordered today
Main Bearings, AM-Series, Alecular Silicon, 0.040 in. Undersize, Volvo, 1.8, 2.1, 2.3L, Set of 5
Part Number: KGB-MB5240AM10
Not Yet Reviewed
Estimated Ship Date: May 8, 2026 if ordered today
Estimated Ship Date: May 8, 2026 if ordered today
Main Bearings, HP-Series, 3/4 Groove, .010 in. Undersize, Alecular Silicon, Chevy, Small Block, Set of 5
Part Number: KGB-MB5142HP010
Not Yet Reviewed
Estimated Ship Date: May 8, 2026 if ordered today
Estimated Ship Date: May 8, 2026 if ordered today
Need It Sooner? We recommend these similar substitute parts:
Main Bearings, HP-Series, 3/4 Groove, .020 in. Undersize, Alecular Silicon, Chevy, 400, Set of 5
Part Number: KGB-MB5143HP020
Not Yet Reviewed
Estimated Ship Date: May 8, 2026 if ordered today
Estimated Ship Date: May 8, 2026 if ordered today
Need It Sooner? We recommend these similar substitute parts:
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: May 8, 2026 if ordered today
Estimated Ship Date: May 8, 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: May 8, 2026 if ordered today
Estimated Ship Date: May 8, 2026 if ordered today
Main Bearings, HP-Series, 3/4 Groove, Alecular Silicon, Set of 5
Part Number: KGB-MB5164HPSTDX
Not Yet Reviewed
Estimated Ship Date: May 8, 2026 if ordered today
Estimated Ship Date: May 8, 2026 if ordered today
Main Bearings, SI-Series, Silicon Aluminum, 0.030 in. Crankshaft Undersize, Chevy, Small Block, Set of 5
Part Number: KGB-MB5183SI030
Not Yet Reviewed
Estimated Ship Date: May 8, 2026 if ordered today
Estimated Ship Date: May 8, 2026 if ordered today
Main Bearings, King AM-Series Main Bearings, .050 in., 1.27 mm Crankshaft Undersize, Bi-Metal, Ford, Sold as a Set
Part Number: KGB-MB5186AM050
Not Yet Reviewed
Estimated Ship Date: May 8, 2026 if ordered today
Estimated Ship Date: May 8, 2026 if ordered today
Main Bearings, AM-Series, 1/2 Groove, .020 in. Undersize, Bi Metal, Ford, Reliant, 2.8L, Set of 4
Part Number: KGB-MB435AM020
Not Yet Reviewed
Estimated Ship Date: May 8, 2026 if ordered today
Estimated Ship Date: May 8, 2026 if ordered today
Main Bearings, AM-Series, 1/2 Groove, .050 in. Undersize, Bi Metal, Buick, 3.0, 3.2, 3.8, 3.8L, Set of 4
Part Number: KGB-MB443AM050
Not Yet Reviewed
Estimated Ship Date: May 8, 2026 if ordered today
Estimated Ship Date: May 8, 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: May 8, 2026 if ordered today
Estimated Ship Date: May 8, 2026 if ordered today
Main Bearings, HP-Series, 3/4 Groove, .010 in. Undersize, Bi Metal, Ford, 351W, Set of 5
Part Number: KGB-MB5392HP010
Not Yet Reviewed
Estimated Ship Date: May 8, 2026 if ordered today
Estimated Ship Date: May 8, 2026 if ordered today
Main Bearing Set;
Part Number: SLP-4125MA40
Not Yet Reviewed
Estimated Ship Date: Feb 27, 2026 if ordered today
Estimated Ship Date: Feb 27, 2026 if ordered today
Crankshaft Main Bearings FIAT 131-132
Part Number: KGB-MB562AM010
Not Yet Reviewed
Estimated Ship Date: May 11, 2026 if ordered today
Estimated Ship Date: May 11, 2026 if ordered today
Main Bearings, AM-Series, 1/2 Groove, Standard Size, Bi Metal, Volkswagen, L4, Set of 5
Part Number: KGB-MB5070AM
Not Yet Reviewed
Estimated Ship Date: May 11, 2026 if ordered today
Estimated Ship Date: May 11, 2026 if ordered today
Main Bearings, AM-Series, Full Groove, Alecular Silicon, 0.75mm. Crankshaft Undersize, Ford, 2.0L, 2.3L, Set of 5
Part Number: KGB-MB582AM075
Not Yet Reviewed
Estimated Ship Date: May 11, 2026 if ordered today
Estimated Ship Date: May 11, 2026 if ordered today
Main Bearings, AM-Series, Full Groove, Alecular Silicon, 0.75mm. Crankshaft Undersize, Toyota, 2.2L, 2.4L, Set of 5
Part Number: KGB-MB580AM075
Not Yet Reviewed
Estimated Ship Date: May 11, 2026 if ordered today
Estimated Ship Date: May 11, 2026 if ordered today
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