The VW Master Cylinder Plug installs in the top of the master cylinder and holds the feed line in place. The plug or master cylinder
grommets are sold individually, two are needed for 1972 through 1977 Standard Beetles, 1972 through 1979 Super Beetles, 1972 through
1974 Karmann Ghias, 1980 through 1991 Vanagons and 1986 through 1991 Syncros. The grommet has a 12mm ID inlet and 21.5mm OD to hold
and seal the feed port (113611153C) to the master cylinder.
Fitment - 19mm Inlet Master Cylinders:
Original Master Cylinders -
1972-1977 Standard Beetle
1972-1979 Super Beetle
1972-1974 Karmann Ghia
Brazilian and aftermarket made replacement Master Cylinders -
1967-1977 Standard Beetle
1971-1979 Super Beetle
1967-1974 Karmann Ghia
Our Expert's Take:
"Bloom” is a milky dusting of dry powder on the surface of new rubber products. Typically, this is caused by unused vulcanizing agents migrating to the surface of the rubber part. This is often found on new master cylinder plugs. This MUST be thoroughly cleaned prior to installation or a fluid leak will occur. Coating the plug with brake fluid prior to install can help with lubrication and a better seal during and after install.
Jaime started working at JBugs as a teen all the way back in the mid-90's; a customer turned employee buying parts for his own cars. He took a 10 year hiatus to become an ASE certified automotive technician, but eventually made his way back to his first love, VWs. In fact, Jaime has owned over 50 VWs including Beetles, Notchback, Squareback, Karmann Ghia, and Bus. His real passion is for building Baja Bugs and he has extensive experience in roll cage, chassis, and suspension fabrication. In his current role at JBugs he is responsible for quality control of products and technical support.
California Prop 65 Warning:
Please Note:The information listed below is for stock, unmodified VW's manufactured for sale in the US. VW's are commonly modified and very often parts from another year VW may have been installed on your car. California Pacific JBugs is not responsible for any errors if your car has been modified in any way.