This Taida crankshaft seal is an aftermarket engine seal designed for GY6 125cc to 150cc engines, particularly in performance or engine swap applications (e.g., Honda Ruckus GY6). It is mounted around the crankshaft to provide a tight seal against oil leaks while preventing the ingress of dust, water, or contaminants.
The oil seal's function is to:
retain engine oil in the crankcase (lower engine)
prevent leaks along the crankshaft
protect bearings and internal components from contamination
maintain proper oil pressure and lubrication
A good oil seal is crucial for preserving the health of the lower engine, especially on modified engines or those subjected to high temperatures and loads.
