PROX Crankshaft Bearing and Seal Kit — Manufacturer Ref: 23.CBS63017

This PROX kit includes the bearings and seals necessary to refurbish the crankshaft of a motocross bike. Designed for engine maintenance and restoration, it allows for the replacement of worn components to restore the sealing and guidance of the crankshaft.

• Complete kit: bearings + crankshaft seals
• Treated bearings to reduce friction
• Intended for motocross and enduro applications (engine maintenance)

Replacing the bearings and seals during an engine overhaul prevents excessive play, oil leaks at the crankshaft, and the risk of premature wear. This kit is used when replacing the crankshaft or refurbishing the engine after checking tolerances. Installation is recommended by a professional or an experienced mechanic to ensure proper timing and sealing.

Examples of compatible models (to be verified according to year and engine type):

• HUSQVARNA FC 350 (2025)
• KTM 250 SX-F (2025)
• GAS GAS MC 250 F (2025)

Before ordering, check the reference and dimensions on your motorcycle's specification sheet to ensure compatibility with your crankshaft.