Engine Crankshaft Main Bearing Set

Carrying on a tradition of durability and dependability, Clevite Bi-Metal (aluminum) engine bearings feature 100% lead-free aluminum silicon. Engineered with 60% more silicon than comparable competitive replacements, they provide better conditioning of journal surfaces. This results in greater seizure and wear resistance.

Bearing Item Grade:	OE Replacement
Bearing Material:	AL-5
Bearing O.D. or Housing Bore (max.):	MB2508A20=2.6415in MB2509A20(F)=2.6415in
Bearing O.D. or Housing Bore (min.):	MB2508A20=2.6406in MB2509A20(F)=2.6406in
Bearing Series:	A
Max. Wall:	MB2508A20=0.1055in MB2509A20(F)=0.1055in
Meets or Exceeds Original Equipment Manufacture Specifications:	Yes
Size:	0.020in Undersize
Standard Shaft Diameter (max.):	MB2508A20=2.4393in MB2509A20(F)=2.4388in
Standard Shaft Diameter (min.):	MB2508A20=2.4384in MB2509A20(F)=2.4379in
Vertical Oil Clearance (max.):	MB2508A20=0.0036in MB2509A20(F)=0.0041in
Vertical Oil Clearance (min.):	MB2508A20=0.0006in MB2509A20(F)=0.0011in

• Sealed Power: 4663MA20
• King Engine Bearings: MB557SI-020

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