King Engine Bearings CR1057GPC GPC Coated & Graded Connecting Rod Bearing Set

The King Engine Bearings CR1057GPC is a GPC Series Coated and Graded Connecting Rod Bearing Set engineered specifically for the BMW S85B50A 5.0L V10 engine. Built on King's advanced silver-based tri-metal structure, these bearings are precision-graded and individually measured to deliver exact oil clearances — a critical advantage for the S85 platform, which is well known for rod bearing wear concerns.

King's GPC designation indicates a combination of two advanced technologies: precision grading (each shell is individually measured and sorted by size) and a ceramic nano-composite polymer coating applied over the tri-metal base. This coating enhances seizure and wear resistance without altering the bearing's original precision wall thickness. The result is a bearing set engineered to handle extreme loads while maintaining the tight clearances that high-revving M engines demand.

Key Features:

• GPC Series: Silver-based tri-metal construction with ceramic nano-composite polymer coating
• Precision-graded shells — individually measured for exact oil clearance control
• Engineered to handle up to 17,000 PSI of bearing load
• Available in STD, STDX, 0.25mm, and .026mm sizes for clearance flexibility
• "Bull's Eye" wall thickness tolerance of ±0.0001" — tighter than industry standard
• Addresses the known rod bearing wear issues of the BMW S85B50A V10

These bearings are an ideal upgrade over OEM replacements for BMW M5 E60 and M6 E63/E64 owners performing a preventative rod bearing service or full engine build. King Engine Bearings are trusted by professional engine builders and racers worldwide, applying race-proven bearing technology to street and high-performance applications alike.