Wiseco Pistons B1038 Top End Needle Bearing - 15x20x17.8mm

The Wiseco B1038 is a precision-engineered top end needle bearing designed for high-performance engine applications. This bearing measures 15mm inner diameter, 20mm outer diameter, and 17.8mm length, making it a critical component for connecting rod small end assemblies in two-stroke and four-stroke engines.

Key Features:

• Case-hardened construction for maximum durability and extended service life
• Precision-manufactured to OEM specifications for exact fit and performance
• Engineered for smooth operation at high engine speeds and temperatures
• High-quality materials resist wear and reduce friction
• Direct replacement bearing for various powersports applications

Wiseco bearings are manufactured to rigorous quality standards, ensuring reliable performance in demanding motorsports and recreational vehicle applications. This top end bearing is commonly used in piston pin assemblies and should be replaced during engine rebuilds to maintain optimal performance and reliability.