King Engine Bearings CR4256XP0.25 Tri-Metal Rod Bearing Set +0.25mm Oversize

The King Engine Bearings CR4256XP0.25 is a +0.25mm oversize connecting rod bearing set engineered for the Dodge/Chrysler 148CI EDZ SRT-4 Turbo engine. Built on King's race-proven XP Series platform, these bearings feature the proprietary pMaxBlack™ tri-metal overlay — purpose-built to handle the elevated loads and cylinder pressures generated by forced-induction performance engines.

Key Features:

• pMaxBlack™ Tri-Metal Construction: A unique three-layer bearing structure combining a steel backing, copper-lead or aluminum intermediate layer, and a hardened performance overlay for maximum load capacity
• Proprietary Non-Scaled Hardening Process: King's exclusive hardening technology produces a denser, more resilient overlay surface that resists fatigue under high-boost, high-RPM conditions
• +0.25mm Oversize: Designed to accommodate a crankshaft that has been reground 0.25mm undersize, restoring proper oil clearance during engine rebuilds
• Race-Grade Performance: Engineered for demanding race and high-performance street applications where OE-style bi-metal bearings fall short
• Precision Manufacturing: Produced to tight tolerances with multiple quality control checkpoints to ensure consistent wall thickness and geometry
• Cross-Reference: Interchanges with Clevite CB-1668P and CB-1813A

King Engine Bearings has specialized exclusively in engine bearings since 1960, and the XP pMaxBlack™ series represents the top of their performance lineup. This set is ideal for SRT-4 builds, turbo upgrades, and high-output engine rebuilds requiring a superior rod bearing solution.