There is a washer that is crimped to the spring on there now. I have never changed the oil on this car and am getting it ready for a startup. It had sat in storage for a lot of years before I got it. I found another washer that was sitting below the oil filter and looks to be the same size as the broken one. Not sure if there is supposed to be a washer there or not or if it is suppose to sit on top or should not be there period.