Availability
Main Bearings, Standard Size, Upper 1/2 Groove, Mercruiser, Mercury Marine, OMC, Volvo Penta, Set
Part Number: RRA-18-1317
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Main Bearings, 0.040 in. Crankshaft Undersize, Tri Metal, Full Groove, Ford, Mercury, V8, 221, 260, 289, 302, Set of 5
Part Number: SLP-4125M40
Not Yet Reviewed
Estimated Ship Date: Jan 15, 2026 if ordered today
Estimated Ship Date: Jan 15, 2026 if ordered today
Main Bearings, AM-Series, .030 in. Crankshaft Undersize, Bi Metal, Ford, Mercury, 200, Set of 7
Part Number: KGB-MB762AM030
Not Yet Reviewed
Estimated Ship Date: Mar 30, 2026 if ordered today
Estimated Ship Date: Mar 30, 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: Mar 30, 2026 if ordered today
Estimated Ship Date: Mar 30, 2026 if ordered today
Main Bearing Set;
Part Number: SLP-4663MA40
Not Yet Reviewed
Estimated Ship Date: Jan 16, 2026 if ordered today
Estimated Ship Date: Jan 16, 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: Jan 16, 2026 if ordered today
Estimated Ship Date: Jan 16, 2026 if ordered today
Main Bearing Set;
Part Number: SLP-4125MA40
Not Yet Reviewed
Estimated Ship Date: Jan 16, 2026 if ordered today
Estimated Ship Date: Jan 16, 2026 if ordered today
Main Bearing Set;
Part Number: SLP-4289M40
Not Yet Reviewed
Estimated Ship Date: Jan 16, 2026 if ordered today
Estimated Ship Date: Jan 16, 2026 if ordered today
Main Bearings, AM-Series, Alecular Silicon, 1.25mm Crankshaft Undersize, Mercedes-Benz, 2.2, 2.3L, Set of 5
Part Number: KGB-MB536AM125
Not Yet Reviewed
Estimated Ship Date: Mar 30, 2026 if ordered today
Estimated Ship Date: Mar 30, 2026 if ordered today
Main Bearings, AM-Series, Alecular Silicon, 0.50mm Crankshaft Undersize, Mercedes-Benz, 2.2, 2.3L, Set of 5
Part Number: KGB-MB536AM05
Not Yet Reviewed
Estimated Ship Date: Mar 30, 2026 if ordered today
Estimated Ship Date: Mar 30, 2026 if ordered today
Main Bearings, XP-Series, 1/2 Groove, Standard Size, Tri Metal, Pontiac V8, Set of 5
Part Number: KGB-MB5511XP
Not Yet Reviewed
Estimated Ship Date: Mar 30, 2026 if ordered today
Estimated Ship Date: Mar 30, 2026 if ordered today
Main Bearing, XP-Series, Copper/Lead/Nickel, 0.020 in. Crankshaft Undersize, Chevy, Small Block, Set of 5
Part Number: KGB-MB557XP020X
Not Yet Reviewed
Estimated Ship Date: Mar 30, 2026 if ordered today
Estimated Ship Date: Mar 30, 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: Mar 30, 2026 if ordered today
Estimated Ship Date: Mar 30, 2026 if ordered today
Main Bearings, King XP-Series Main Bearings, .010 in., .25 mm Crankshaft Undersize, Tri-Metal, Audi, Volkswagen, Sold as a Set of 5
Part Number: KGB-MB5566XP025
Not Yet Reviewed
Estimated Ship Date: Mar 30, 2026 if ordered today
Estimated Ship Date: Mar 30, 2026 if ordered today
Crankshaft Main Bearings
Part Number: KGB-MB5511XP020
Not Yet Reviewed
Estimated Ship Date: Mar 30, 2026 if ordered today
Estimated Ship Date: Mar 30, 2026 if ordered today
Main Bearings, XP-Series, Narrowed, Tri-metal, 1/2 Groove Style, 0.020 in. Crankshaft Undersize, Chevrolet, Big Block, Set of 5
Part Number: KGB-MB556XPN020
Not Yet Reviewed
Estimated Ship Date: Mar 30, 2026 if ordered today
Estimated Ship Date: Mar 30, 2026 if ordered today
Main Bearings, AM-Series, Alecular Silicon, 0.75mm Crankshaft Undersize, Toyota, Set of 7
Part Number: KGB-MB787AM075
Not Yet Reviewed
Estimated Ship Date: Mar 30, 2026 if ordered today
Estimated Ship Date: Mar 30, 2026 if ordered today
Main Bearings, AM-Series, Alecular Silicon, 1.00mm Crankshaft Undersize, Toyota, Set of 7
Part Number: KGB-MB787AM10
Not Yet Reviewed
Estimated Ship Date: Mar 30, 2026 if ordered today
Estimated Ship Date: Mar 30, 2026 if ordered today
Main Bearings, P-Series, 1/2 Groove, Standard Size, Tri Metal, Chevy, Big Block, Set of 5
Part Number: MAN-33040
Not Yet Reviewed
Estimated Ship Date: Feb 16, 2026 if ordered today
Estimated Ship Date: Feb 16, 2026 if ordered today
Main Bearings, Ford, 240, 250, 300 6-cyl., 1966-1996, 0.040 in., Set
Part Number: KGB-MB7750SI040
Not Yet Reviewed
Estimated Ship Date: Mar 30, 2026 if ordered today
Estimated Ship Date: Mar 30, 2026 if ordered today
Main Bearings, King XP-Sereis Main Bearings, .020 in., Crankshaft Undersize, Tri-Metal, Ford, Sold as a Set of 5
Part Number: KGB-MB529XP020
Not Yet Reviewed
Estimated Ship Date: Mar 30, 2026 if ordered today
Estimated Ship Date: Mar 30, 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: Mar 30, 2026 if ordered today
Estimated Ship Date: Mar 30, 2026 if ordered today
Main Bearings, AM-Series, Full Groove, .030 in. Crankshaft Undersize, Bi Metal, Oldsmobile, 260, 307, 330, 350, 403
Part Number: KGB-MB5514AM030
Not Yet Reviewed
Estimated Ship Date: Mar 30, 2026 if ordered today
Estimated Ship Date: Mar 30, 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: Mar 30, 2026 if ordered today
Estimated Ship Date: Mar 30, 2026 if ordered today
Main Bearings, XP-Series, Tri-metal, 0.50mm. Crankshaft Undersize, Ford, 2.0L, 2.3L, Set of 5
Part Number: KGB-MB582XP05
Not Yet Reviewed
Estimated Ship Date: Mar 30, 2026 if ordered today
Estimated Ship Date: Mar 30, 2026 if ordered today
Modal Header
Call To Order
This is a custom order part. You can order this part by Contacting Us.