Description
The Wiseco B1005 top end bearing is essential for maintaining precise piston-to-cylinder clearances and supporting sustained high-RPM operation in your YFZ350 Banshee. A worn or inadequate bearing accelerates top-end wear and compromises engine reliability during aggressive riding. This bearing restores factory tolerances and ensures smooth operation under the demanding conditions of race and trail use.
- High-silicon aluminum alloy
- Case-hardened construction
- Yamaha YFZ350 Banshee fitment
- 1987–2006 model years
- Precision manufactured tolerances
- Bolt-on installation
- High-RPM rated









