Prox Crankshaft bearings and seals kit Crankshaft bearingRef : PRO00026A / 1117596

PROX Crankshaft Bearing and Oil Seal Kit — manufacturer reference 23.CBS22005. This kit includes the essential components to refurbish the crankshaft of a 125 2-stroke: bearings and oil seals carefully selected to restore sealing and rotation without surprises. Ideal for engine revisions on cross machines where sealing and freedom of rotation are paramount.

• Complete kit: bearings + crankshaft oil seals
• Treated bearings to minimize friction
• Allows for refurbishing the crankshaft under reliability conditions equivalent to the original equipment
• Brand: PROX — engine parts specialist

This kit is aimed at riders and mechanics who want to restore the heart of their engine during a revision, after an oil leak at the crankshaft, or simply to prevent wear. Compatible with the applications indicated for the reference, including Yamaha YZ125 and certain recent 125 models (see compatibility details). Particularly suitable for cross use where engine stress is high and reliable sealing is essential.

For a clean installation: carefully clean the seating surfaces, check the condition of the crankshaft, and adhere to the manufacturer's torque specifications. If in doubt, entrust the assembly to a qualified workshop to ensure alignment and longevity of moving parts.