Prox 40x55x10mm Crankshaft oil sealsRef : PRO00393A / 1017354

PROX Crankshaft Oil Seal 40x55x10mm — Manufacturer reference: 41.2-40091

This single oil seal is designed for sealing the crankshaft on motocross models. This PROX seal, with exact dimensions of 40x55x10 mm, is engineered to prevent oil leaks at the shaft exit and protect the engine case from dirt and debris encountered in off-road conditions. Compact and easy to install, it fits on the listed engines without modification.

• Brand: PROX
• Dimensions: 40 x 55 x 10 mm
• Packaging: SINGLE
• Category: Crankshaft Oil Seal
• Universe: Motocross

Compatibility (examples):

• YAMAHA YZ 250 (1997 - 250 cc)
• YAMAHA WR 250 Z (1997 - 250 cc)
• YAMAHA YZ 490 (1988 - 490 cc)

Workshop advice: before installation, check the seal seat and clean the surface. Use a guide or tube to push the seal in straight to avoid folds and ensure a clean installation. Ideal for engine revision operations or replacement during crankshaft disassembly.