This is the plastic plug that screws into the timing hole of a Diesel Vanagon bellhousing
Gear Shift Bellows Intermediate Piece 1.6l TD 8/84-7/92 Vanagon
Gearstick for gearbox Diesel 5 speed 8/1982-7/1992 (Not Syncro)
Diesel Vanagon clutch kit.
Brand New Diesel Vanagon Bellhousing made of Aluminum