Mopar Performance Valve Covers
No standard PCV grommet will fit the slotted oil fill opening properly. There is a boss on the opposite end for a knock out (a 1" to 1-1/8" hole saw is best, cut from the inside on your drill press).
Those covers are a half inch thick at the boss/knock out area. Most grommets from the Help section are not thick enough and their grooves are too narrow to seal well.
Ma Mopar corporate discontinued production of the "right" grommet a couple years ago. This kit with the grommet and a plug is about $15 but can often be on backorder too. Last time I ordered some, none of the usual suppliers had it but a smaller outfit in East Moline, Illinois did.
More pics are in this Facebook post at Log into Facebook | Facebook
No standard PCV grommet will fit the slotted oil fill opening properly. There is a boss on the opposite end for a knock out (a 1" to 1-1/8" hole saw is best, cut from the inside on your drill press).
Those covers are a half inch thick at the boss/knock out area. Most grommets from the Help section are not thick enough and their grooves are too narrow to seal well.
Ma Mopar corporate discontinued production of the "right" grommet a couple years ago. This kit with the grommet and a plug is about $15 but can often be on backorder too. Last time I ordered some, none of the usual suppliers had it but a smaller outfit in East Moline, Illinois did.
More pics are in this Facebook post at Log into Facebook | Facebook