King Engine Bearings CR4440XP0.25 Trimetal pMax Black Connecting Rod Bearing Set +0.25mm

The King Engine Bearings CR4440XP0.25 is a race-grade trimetal pMax Black connecting rod bearing set manufactured in a +0.25mm (0.010 in) oversized dimension. Designed for performance and racing applications, this set delivers the precision fit and durability required for demanding engine builds.

King Engine Bearings is a bearing-only manufacturer, dedicating their entire engineering focus to producing the highest quality engine bearings available. Their XP Series race bearings feature a proven trimetal construction engineered to withstand the extreme loads associated with high-performance and competition use.

pMax Black Trimetal Construction:

• Trimetal design — copper-lead construction with a nickel barrier plate and a lead/tin/copper babbitt overlay on a steel backing
• pMax Black racing line — King's top-tier race bearing series, engineered for high-RPM and high-load applications
• +0.25mm oversize — designed for use with journals that have been machined undersize by 0.25mm (approximately 0.010 in)
• Tight wall tolerances — King maintains bearing wall thickness tolerances to ±0.0001 in for precise oil clearance control
• Superior embedability — the trimetal layering process promotes particle embedability to protect journal surfaces under race conditions
• Steel-backed construction — provides structural rigidity and a stable foundation for the bearing overlay layers

King Engine Bearings XP Series rod bearings are the choice of professional engine builders for both race and high-performance street builds. The pMax Black line represents King's most advanced bearing technology, making the CR4440XP0.25 an ideal choice for any serious engine rebuild or performance application.