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Main Bearings, AM-Series, Full Groove, .030 in. Crankshaft Undersize, Bi Metal, Ford, Mercury, 330-428, FE, FT, Set 5
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Estimated Ship Date: Apr 13, 2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
MB 559AM 030
Part Type:
Product Line:
Summit Racing Part Number:
KGB-MB559AM030
UPC:
611500220647
Bearing Usage:
Performance
Engine Crankshaft Undersize (in.):
0.030 in.
Engine Crankshaft Undersize (mm):
0.75mm
Grooved Bearing:
Yes
Groove Location:
Upper and lower
Groove Style:
Full
Thrust Bearing Oversize:
Maximum
Bearing Material:
Alecular silicon
Quantity:
Sold as a set of 5.
King AM-Series Main Bearings
King AM-Series main bearings are recommended for street or marine applications. These crankshaft bearings have superior embeddability, which provides greater macro-particle to reduce scratching of the crank journals and tearing or weakening of the Babbitt overlays. King AM-Series main bearings feature tolerance control to within plus or minus .0001—and they're lead-free, making them environmentally-friendly and user-safe. Hundreds of performance sets are available; order the replacement bearings designed to fit your vehicle.
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Some parts are not legal for use in California or other states with similar laws / regulations
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