ROCKER COVER Today I replaced a painted rocker, which i painted ages ago was waiting for the PVC valve... So, get everything out of the way for the rocker to come loss. After you take those nut off the rocker, u left with this washers, pick them off, them the rocker should come off easily. Use flat head screw driver on all corners, till you see the rocker moving slowly. once its off you will see this Those are the parts may need to be replace, grommet is 90480-18006, PVC vlave as pic, and gasket as pic. not sure what part numbers are for the washers. Put everything back in, done