King Engine Bearings CR4104XPSTDX XP Series Tri-Metal Connecting Rod Bearing Set

The King Engine Bearings XP Series Connecting Rod Bearing Set delivers exceptional durability for high-performance racing applications. Engineered specifically for forged steel aftermarket crankshafts subjected to extreme loads over extended periods, this bearing set represents the pinnacle of King Racing's advanced metallurgical technology.

pMax Black Tri-Metal Technology:

These bearings feature King's exclusive pMax Black tri-metal construction, which is 24% harder than conventional tri-metal race bearings. The enhanced copper-lead structure includes a nickel barrier and SecureBond adhesion process for superior stability between layers. A metallurgically hardened 0.0005" performance overlay resists surface fatigue and withstands significantly greater loads than traditional bearings.

Key Performance Features:

• 15-30% Greater Load Capacity: Engineered to handle extreme performance demands in circle track, off-road, offshore, and endurance racing
• Bull's Eye Tolerance: Industry-leading wall tolerances with all shells matched to 0.0001" for precise fitment
• Increased Bearing Height: Improves bearing-to-bore contact and heat transfer while reducing spin potential at high RPM
• Medium Eccentricity Design: Optimizes load distribution and enhances oil flow
• SecureBond Adhesion: Unique bonding process ensures exceptional stability between top and intermediate layers
• Narrowed Design: Accommodates large-radius crankshafts for modern performance builds

What's Included:

Complete connecting rod bearing set with precision-matched shells ready for installation.

King XP Series bearings are the ideal choice for race engine builders pushing the limits of load capacity in demanding competition environments where reliability and performance cannot be compromised.