The VW-Type Oil Temperature Sensor includes Sender, Metric adapter plug and VW Sealing Gasket. It installs without modification into the Oil Pressure Relief Plug opening found on most air-cooled 1960's-type (flat-four air-cooled) VW engines.;

It is not for installation in the Oil-Drain Plug Opening! Most VW experts agree the oil pressure relief plug opening in the engine block (behind the rear cylinder on the drivers side (U.S. Left-Hand Drive) is a better choice for oil temperature sensor location than installing in the dip-stick tube or in the oil pan drain opening.