Ensure a leak-free oil change with this Genuine Piaggio OEM Oil Drain Plug O-Ring (MPN: 285536). Black nitrile rubber O-ring with uniform cross-section � exact OEM inner diameter, outer diameter, and thickness for a flawless crush seal at the engine oil drain plug or oil sump filter screen cap. Rubber O-rings degrade, flatten, and lose elasticity from continuous engine heat cycles and compression; replace this O-ring at every oil change as cheap insurance against oil leaks.
