King Engine Bearings MB5180XP0.5 XP-Series Tri-Metal Main Bearing Set Oversize - 0.50mm

The King Engine Bearings MB5180XP0.5 is a complete XP-Series (Xtreme Performance) tri-metal main bearing set sized at +0.50mm oversize, designed for Renault R9 and R11 engines. This is a race-proven main bearing set engineered for demanding, high-load applications requiring exceptional durability and precision.

Key Features:

• Tri-Metal Construction: Features layered copper-lead construction with a nickel plate barrier and a lead/tin/copper Babbitt overlay over a steel backing, providing superior stability and durability
• Xtreme Performance (XP) Series: Race-grade bearings designed to handle the extreme loads of high-performance and competition engines
• Precision Wall Thickness: Tolerance maintained at an industry-leading ±.0001 in., far tighter than the competition for consistent, reliable fitment
• Improved Oiling: Narrowed design for large-radius crankshafts with enlarged, chamfered oil holes and full, 3/4, or 1/2 groove options for enhanced oil flow
• High Load Capacity: Engineered for high-load, long-duration engine use in both performance street and race applications
• +0.50mm Oversize: Intended for use with crankshafts that have been reground to a 0.50mm undersize specification
• Sold as a Complete Set of 5 bearing shells

Engine Compatibility:

• Renault 1.8L / 1721cc (1980–2001)
• Renault 1.8L / 1763cc (1988–1998)
• Renault 2.0L / 1998cc (1990–2003)
• Renault 1.9L / 1870cc Diesel (1988–1995)

King Engine Bearings is a dedicated bearing specialist, applying race-derived engineering and advanced metallurgy to every set they produce. The XP-Series main bearings deliver consistent, long-lasting performance whether in a rebuilt street engine or a full competition build.