Availability
Main Bearings, 1/2 Groove, .020 in. Crankshaft Undersize, Bi-metal, Silicon Aluminum, Ford, Small Block, Set of 5
Part Number: KGB-MB529SI020
Need It Sooner? We recommend these similar substitute parts:
Rod Bearings, SI-Series, Silicon Aluminum, 0.010 in. Crankshaft Undersize, Ford, 4.6, 5.4L, Set of 8
Part Number: KGB-CR868SI025
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Main Bearings, HP-Series, Silicon Aluminum, 0.50mm. Crankshaft Undersize, Ford, 4.6, 5.4L, Set of 5
Part Number: KGB-MB5280SI05
Estimated Ship Date: Jan 22, 2026 if ordered today
Estimated Ship Date: Jan 22, 2026 if ordered today
Main Bearings, XP-Series, Copper/Lead/Nickel, Standard Size, Ford, Lincoln, Mercury, Set of 5
Part Number: KGB-MB529XPSTDX
Not Yet Reviewed
Estimated Ship Date: Jan 23, 2026 if ordered today
Estimated Ship Date: Jan 23, 2026 if ordered today
Need It Sooner? We recommend these similar substitute parts:
Main Bearings, 1/2 Groove, .020 in. Crankshaft Undersize, Bi-metal, Silicon Aluminum, Ford, Set of 5
Part Number: KGB-MB5505SI020
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Main Bearings, 1/2 Groove, .040 in. Crankshaft Undersize, Bi-metal, Silicon Aluminum, Ford, Small Block, Set of 5
Part Number: KGB-MB529SI040
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Rod Bearings, SI-Series, Silicon Aluminum, 0.500mm Crankshaft Undersize, Ford, 4.6L, 5.4L, Set of 8
Part Number: KGB-CR881SI05
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Rod Bearings, .010 in Crankshaft Undersize, Bi-metal, Silicon Aluminum, Set of 6
Part Number: KGB-CR640SI010
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Main Bearings, XP-Series, Copper/Lead/Nickel, 0.001 in. Crankshaft Undersize, Ford, Lincoln, Mercury, 351W, 351M, 400
Part Number: KGB-MB5505XP001
Not Yet Reviewed
Main Bearings, XP-Series Coated, Performance Style, Stock Size, Tri-Metal, Grooved, Upper, Half-Style, Ford, Set of 5
Part Number: KGB-MB5283XPC
Not Yet Reviewed
Rod Bearings, .030 in Crankshaft Undersize, Bi-metal, Silicon Aluminum, Ford, Small Block, Set of 8
Part Number: KGB-CR814SI030
Not Yet Reviewed
Estimated Ship Date: Jan 22, 2026 if ordered today
Estimated Ship Date: Jan 22, 2026 if ordered today
Main Bearings, 1/2 Groove, .030 in. Crankshaft Undersize, Bi-metal, Silicon Aluminum, Ford, Small Block, Set of 5
Part Number: KGB-MB529SI030
Not Yet Reviewed
Main Bearings, HP-Series, Silicon Aluminum, 0.020 in. Crankshaft Undersize, Ford, Lincoln, Mercury, Set of 5
Part Number: KGB-MB529HP020
Not Yet Reviewed
Rod Bearings, SI-Series, Silicon Aluminum, 0.250mm Crankshaft Undersize, Ford, 4.6L, 5.4L, Set of 8
Part Number: KGB-CR881SI025
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Rod Bearings, SI-Series, Silicon Aluminum, 0.75mm. Crankshaft Undersize, Ford, 4.6, 5.4L, Set of 8
Part Number: KGB-CR868SI075
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Rod Bearings, HP-Series, Bi-metal, Silicon Aluminum, 0.25mm Crankshaft Undersize, Ford, 4.6L, 5.0L, 5.4L, Set of 8
Part Number: KGB-CR868HPN025
Not Yet Reviewed
Estimated Ship Date: Jan 22, 2026 if ordered today
Estimated Ship Date: Jan 22, 2026 if ordered today
Need It Sooner? We recommend these similar substitute parts:
Main Bearings, XP-Series, Copper/Lead/Nickel, Standard Size, Ford, 4.6, 5.4L, Set of 5
Part Number: KGB-MB5280XP
Not Yet Reviewed
Rod Bearings, XP-Series, Silicon Aluminum, 0.001 in. Crankshaft Undersize, Ford, 221, 255, 260, 289, 302, Set of 8
Part Number: KGB-CR804XPND001
Not Yet Reviewed
Estimated Ship Date: Jan 23, 2026 if ordered today
Estimated Ship Date: Jan 23, 2026 if ordered today
Rod Bearings, .040 in Crankshaft Undersize, Bi-metal, Silicon Aluminum, Ford, Small Block, Set of 8
Part Number: KGB-CR804SI040
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Rod Bearings, Standard Size, Bi-metal, Silicon Aluminum, Ford, Set of 6
Part Number: KGB-CR6712SI
Not Yet Reviewed
Estimated Ship Date: Jan 22, 2026 if ordered today
Estimated Ship Date: Jan 22, 2026 if ordered today
Rod Bearings, SI-Series, Silicon Aluminum, 1.00mm. Crankshaft Undersize, Ford, 4.6, 5.4L, Set of 8
Part Number: KGB-CR868SI10
Not Yet Reviewed
Estimated Ship Date: Jan 23, 2026 if ordered today
Estimated Ship Date: Jan 23, 2026 if ordered today
Rod Bearings, .040 in Crankshaft Undersize, Bi-metal, Silicon Aluminum, Ford, Small Block, Set of 8
Part Number: KGB-CR814SI040
Not Yet Reviewed
Estimated Ship Date: Jan 23, 2026 if ordered today
Estimated Ship Date: Jan 23, 2026 if ordered today
Main Bearings, HP-Series, Silicon Aluminum, 0.25mm. Crankshaft Undersize, Ford, 4.6, 5.4L, Set of 5
Part Number: KGB-MB5280SI025
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Main Bearings, Ford, 240, 250, 300 6-cyl., 1966-1996, 0.030 in., Set
Part Number: KGB-MB7750SI030
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Main Bearings, SI-Series, Silicon Aluminum, 0.50mm. Crankshaft Undersize, Ford, 4.6L, Set of 5
Part Number: KGB-MB5281SI05
Not Yet Reviewed
Estimated Ship Date: Jan 22, 2026 if ordered today
Estimated Ship Date: Jan 22, 2026 if ordered today
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