King Engine Bearings CR4403CP040 Connecting Rod Bearing Set Austin/MG B-Series .040 Undersize Tri-Metal

The King Engine Bearings CR4403CP040 is a tri-metal copper-lead connecting rod bearing set designed for the classic Austin/MG BMC B-Series 1798cc 4-cylinder engine. This set is sized at 0.040" undersize, intended for engines whose connecting rod crankshaft journals have been reground 0.040" below the standard dimension.

King's CP-Series tri-metal construction uses a copper-lead alloy on a steel backing with a tin overplate, delivering outstanding load capacity and temperature resistance compared to standard bi-metal bearings. This makes the CP-Series an excellent upgrade choice for performance rebuilds or worn engines requiring superior durability.

Key Features:

• CP-Series Tri-Metal Construction: Copper-lead on steel backing with tin overplate for high load capacity and heat resistance
• 0.040" (1.00 mm) Undersize: For use with crankshafts reground 0.040" below standard journal diameter
• Crankshaft Journal Dimension: 47.65–47.66 mm (1.8759–1.8764")
• Housing Bore Dimension: 51.33–51.35 mm (2.0210–2.0215")
• Bearing Length: 19.9 mm (0.784")
• Set Includes: 4 pairs (8 individual bearing shells)
• King Bull's Eye Tolerance™ Technology: Wall thickness maintained to ±0.0001" for precise oil clearance
• Engineered for the BMC/Austin/MG B-Series 1798cc 4-cylinder engine platform

King Engine Bearings has specialized exclusively in engine bearings since 1960, applying racing-derived metallurgy and manufacturing precision to every OEM replacement and performance bearing in their lineup. The CR4403CP040 is the ideal choice for engine rebuilders seeking a robust, precise tri-metal rod bearing solution for the iconic B-Series engine.