<ol> <li><i>O.D.(outside diameter): 24 mm / 0.94 inch , I.D.(inside diameter): 18 mm / 0.71 inch , Thickness: 2 mm / 0.08 inch</i></li> <li><i>This is transmission fluid drain plug crush washer seal for Toyota Prius Corolla Tacoma Camry etc.</i></li> <li><i>This 18 mm / 0.71 inch aluminum transmission fluid drain plug crush washer seal is needed to change the transmission fluid</i></li> <li><i>This is the direct replacement for the part# 90430-18008 9043018008</i></li> </ol>