This is the exhaust locking nut that holds the exhaust manifold to the head . It is copper clad and has a 12mm hex. Price is per nut.
Exhaust Manifold (cast iron "Y" pipe) for 2.1l Vanagon (86-91)
Exhaust Manifold Gasket
Center Muffler for Eurovan 97-2003 (OE VW)
Muffler carrier for Syncro Vanagon (Right)
Header Pipe for 1.6l Diesel Vanagon (non-turbo)
Muffler Carrier for Passenger's Side 86-92 2wd Vanagon 2.1L