MK4 Before-Catalyst Oxygen Sensor (1.8T)

The Bosch oxygen sensor utilizes a mix of zirconium and yttrium oxides and other elements to form a tough base that withstands the intense stress to which oxygen sensors are subjected. Each element is incredibly strong for best-in-class performance and maximum service life. > OE-Equivalent.
> Direct fit for easy installation.
> OE Style connectors and wire lengths.
> Base ceramic probe of Zirconium and Yttrium.
> Patented Platinum Power Grid.
> Fine particle filter. Fits: MK4 1.8T vehicles