Availability
Main Bearings
Showing In Stock Items. Show All 471 Items.
Main Bearings, AM-Series, Full Groove, Standard Size, Bi Metal, Ford, Mercury, 330-428, FE, FT, Set 5
Part Number: KGB-MB559AM
Estimated Ship Date: Monday 4/20/2026 if shipped by air
Estimated Ship Date: Monday 4/20/2026 if shipped by air
BUILD IT WITH SUMMIT!
Main Bearing, Honda D15B,Z,D16A,B,W,Y,Z,D17A,Z,B18A,B20A3,4,K20A3 F23A,Z,H22A,Z 1998+ .010 Undersize, Set
Part Number: SUM-1957H010
Not Yet Reviewed
Estimated Ship Date: Monday 4/20/2026 if shipped by air
Estimated Ship Date: Monday 4/20/2026 if shipped by air
Main Bearings, Standard Size, Tri Metal, Full Groove, Ford, Mercury, 351W, Set of 5
Part Number: SLP-5107M
Estimated Ship Date: Monday 4/20/2026 if shipped by air
Estimated Ship Date: Monday 4/20/2026 if shipped by air
Main Bearings, AM-Series, Full Groove, .010 in. Crankshaft Undersize, Bi Metal, Ford, Mercury, 330-428, FE, FT, Set 5
Part Number: KGB-MB559AM010
Estimated Ship Date: Monday 4/20/2026 if shipped by air
Estimated Ship Date: Monday 4/20/2026 if shipped by air
Main Bearings, Standard Size, Tri Metal, Full Groove, Chevy, V6, 3.3L, 3.8L, 4.3L, Set of 4
Part Number: SLP-5085M
Estimated Ship Date: Monday 4/20/2026 if shipped by air
Estimated Ship Date: Monday 4/20/2026 if shipped by air
Main Bearings, AM-Series, Full Groove, .020 in. Crankshaft Undersize, Bi Metal, Ford, Mercury, 330-428, FE, FT, Set 5
Part Number: KGB-MB559AM020
Estimated Ship Date: Monday 4/20/2026 if shipped by air
Estimated Ship Date: Monday 4/20/2026 if shipped by air
Main Bearings, Standard Size, Bi Metal, 3/4 Groove, Chevy, V6, 3.3L, 3.8L, 4.3L, Set of 4
Part Number: SLP-5085MA
Estimated Ship Date: Monday 4/20/2026 if shipped by air
Estimated Ship Date: Monday 4/20/2026 if shipped by air
Main Bearings, SI-Series, Full Groove, .010 in. Crankshaft Undersize, Bi-metal, Silicon Aluminum, Jeep, Mopar, Set of 5
Part Number: KGB-MB5534SI010
Not Yet Reviewed
Estimated Ship Date: Monday 4/20/2026 if shipped by air
Estimated Ship Date: Monday 4/20/2026 if shipped by air
Main Bearings, AM-Series, 3/4 Groove, Standard Size, Bi Metal, Ford, 2.3, 2.5L, Set of 5
Part Number: KGB-MB5278AM
Estimated Ship Date: Monday 4/20/2026 if shipped by air
Estimated Ship Date: Monday 4/20/2026 if shipped by air
Main Bearings, 0.010 in. Crankshaft Undersize, Bi Metal, 3/4 Groove, Chevy, V6, 3.3L, 3.8L, 4.3L, Set of 4
Part Number: SLP-5085MA10
Not Yet Reviewed
Estimated Ship Date: Monday 4/20/2026 if shipped by air
Estimated Ship Date: Monday 4/20/2026 if shipped by air
Main Bearings, SI-Series, Full Groove, .020 in. Crankshaft Undersize, Bi-metal, Silicon Aluminum, Jeep, Mopar, Set of 5
Part Number: KGB-MB5534SI020
Not Yet Reviewed
Estimated Ship Date: Monday 4/20/2026 if shipped by air
Estimated Ship Date: Monday 4/20/2026 if shipped by air
Main Bearings, AM-Series, Full Groove, Alecular Silicon, 0.25mm. Crankshaft Undersize, Ford, 2.0L, 2.3L, Set of 5
Part Number: KGB-MB582AM025
Not Yet Reviewed
Estimated Ship Date: Monday 4/20/2026 if shipped by air
Estimated Ship Date: Monday 4/20/2026 if shipped by air
Main Bearings, AM-Series, Full Groove, .030 in. Crankshaft Undersize, Bi Metal, Ford, Mercury, 330-428, FE, FT, Set 5
Part Number: KGB-MB559AM030
Estimated Ship Date: Monday 4/20/2026 if shipped by air
Estimated Ship Date: Monday 4/20/2026 if shipped by air
Main Bearings, AM-Series, Alecular Silicon, 0.25mm Crankshaft Undersize, Ford, 2.3, 2.5L, Set of 5
Part Number: KGB-MB5278AM025
Estimated Ship Date: Monday 4/20/2026 if shipped by air
Estimated Ship Date: Monday 4/20/2026 if shipped by air
Main Bearings, SI-Series, Full Groove, .010 in. Crankshaft Undersize, Bi-metal, Silicon Aluminum, Ford, Set of 5
Part Number: KGB-MB5504SI010
Not Yet Reviewed
Estimated Ship Date: Monday 4/20/2026 if shipped by air
Estimated Ship Date: Monday 4/20/2026 if shipped by air
Main Bearings, 0.010 in. Crankshaft Undersize, Tri Metal, Full Groove, Chevy, V6, 3.3L, 3.8L, 4.3L, Set of 4
Part Number: SLP-5085M10
Not Yet Reviewed
Estimated Ship Date: Monday 4/20/2026 if shipped by air
Estimated Ship Date: Monday 4/20/2026 if shipped by air
Main Bearings, SI-Series, Full Groove, .030 in. Crankshaft Undersize, Bi-metal, Silicon Aluminum, Jeep, Mopar, Set of 5
Part Number: KGB-MB5534SI030
Not Yet Reviewed
Estimated Ship Date: Jul 15, 2026 if ordered today
Estimated Ship Date: Jul 15, 2026 if ordered today
Main Bearings, AM-Series, Full Groove, Alecular Silicon, 0.25mm. Crankshaft Undersize, Toyota, 2.2L, 2.4L, Set of 5
Part Number: KGB-MB580AM025
Estimated Ship Date: Jul 15, 2026 if ordered today
Estimated Ship Date: Jul 15, 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: Jul 13, 2026 if ordered today
Estimated Ship Date: Jul 13, 2026 if ordered today
Main Bearing, Mitsubishi 4G63/T, 4G64 -1997+ w/TW .001 Undersize, Set
Part Number: SUM-1219H1
Not Yet Reviewed
Estimated Ship Date: Monday 4/20/2026 if shipped by air
Estimated Ship Date: Monday 4/20/2026 if shipped by air
Main Bearings, 3/4 Groove, Standard Size, Bi-metal, Silicon Aluminum, Set of 4
Part Number: KGB-MB4023SI
Not Yet Reviewed
Estimated Ship Date: Monday 4/20/2026 if shipped by air
Estimated Ship Date: Monday 4/20/2026 if shipped by air
Main Bearings, P Series, Standard Size, Tri Metal, Ford, 351M, 351W, 400, Set of 5
Part Number: EW1-MS981P
Not Yet Reviewed
Estimated Ship Date: Monday 4/20/2026 if shipped by air
Estimated Ship Date: Monday 4/20/2026 if shipped by air
Main Bearings, 3/4 Groove, Standard Size, Bi-metal, Silicon Aluminum, Set of 4
Part Number: KGB-MB4034SI
Not Yet Reviewed
Estimated Ship Date: Jul 15, 2026 if ordered today
Estimated Ship Date: Jul 15, 2026 if ordered today
Main Bearings, 0.001 in. Crankshaft Undersize, Tri Metal, Full Groove, Chevy, V6, 3.3L, 3.8L, 4.3L, Set of 4
Part Number: SLP-5085M1
Not Yet Reviewed
Estimated Ship Date: May 6, 2026 if ordered today
Estimated Ship Date: May 6, 2026 if ordered today
Main Bearings, Standard Size, Tri Metal, Full Groove, Toyota, L4, 2.4L, Set of 5
Part Number: SLP-7148M
Not Yet Reviewed
Estimated Ship Date: May 6, 2026 if ordered today
Estimated Ship Date: May 6, 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