This is M20 oil drain plug gaskets ,OEM: 11126AA000 ,pls check your original gasket ,sure which gaskets are correct for you , if you need M16 oil drain plug crush washers you can search ASIN: B07SLXVVWL
O.D.(outside diameter): 26.5 mm /1.04 inch, I.D.(inside diameter): 20 mm / 0.78 inch , Thickness: 2.17 mm / 0.085inch
This oil drain plug gaskets crush washers is for Baja Impreza WRX STi Legacy Outback Forester Tribeca, see more vehicle fits in the description
This 20 mm / 0.78 inch oil drain plug gaskets crush washers is needed for every oil change, it helps to seal the drain plug and oil pan surfaces.
This is the direct replacement for the part# 11126AA000 , package including 10pcs M20 oil drain plug gaskets crush washers