King Engine Bearings CR4552SI020 SI-Series Connecting Rod Bearing Set Oversize - 0.020

King Engine Bearings CR4552SI020 is a precision-engineered connecting rod bearing set from the SI-Series line, designed specifically for OE replacement and performance engine rebuilding applications. This set features a +0.020" oversize specification for use with reground crankshafts.

Key Features:

• SI-Series aluminum-based bearing material strengthened with 2.5-3% silicon for medium load engines and nodular cast iron crankshafts
• Improved bearing finish reduces microscopic ferrite peaks on improperly ground or polished crankshafts
• Bull's Eye Tolerance technology maintains bearing wall thickness tolerances at an incredibly tight ±0.0001"
• Enhanced oil clearance specifications reduce wear and increase engine life while minimizing operating noise, vibration, and excess oil flow
• Single deep layer (.012"-.015") of Alecular bearing material on steel backing for superior embedability
• Precision-engineered for aftermarket gasoline and diesel engine rebuilds with OE crankshafts

King Engine Bearings has specialized in manufacturing premium engine bearings since 1960, earning a reputation as a world-class bearing specialist trusted by professional engine builders, racing teams, and automotive enthusiasts. Each bearing set undergoes rigorous quality control and testing to ensure optimal performance and longevity.