Wiseco Pistons Main Bearing Kit Crankshaft Bearings

Wiseco Pistons Main Bearing Kits are crankshaft main bearing kits for powersports engine rebuilds. They are also sold as crankshaft bearings. The kits are for engine builders and riders who want a dependable bottom end when they rebuild a crankshaft assembly.

Key Features:

• Main bearings that support the crankshaft and let it spin smoothly in the crankcase
• Built as replacements for worn bearings during an engine rebuild or crankshaft service
• Made by Wiseco, a well-known name in pistons and engine internals for powersports
• Helps reduce friction and wear in the rotating assembly

Replacing the main bearings during a rebuild is a good way to restore bottom-end reliability and smooth operation. Pick the variant that matches your engine's bearing specifications.