Pre-Cat Oxygen Sensor, NTK - E36 323ic/323is, Z3 2.8 97-98, M52

This part is listed by BMW as BMW part number 11781433071 (11 78 1 433 071) and is described as Oxygen Sensor, originally made by Siemens with a wire harness length of 410mm (just over 16 inches). This particular oxygen sensor was specifically for the 1997, 1998, and 1999 E36 323is coupe and 323i convertible (323ic) as well as the 1997-1998 Z3 2.8 liter roadster. It installs pre-cat - ahead of the catalytic converter. If you have a bad pre-cat oxygen sensor on your E36 323is, 323ic, or 97-98 Z3 2.8, this brand new replacement can cure your o2 sensor blues! 

Not for Z3 after the 1998 model year. 
Not for 1999 4 door models (only 2 door 323is / 323ic)

This oxygen sensor is made by NTK, an orginal equipment manufacturer (OEM) that is closely aligned with NGK, rival to Bosch - both OE suppliers for BMW and the highest quality and precision for best performance and longevity. This is a brand we don't hesitate to use in our own BimmerWorld employee and project BMWs. 

For full BMW fitment information or for assistance from one of our BMW experts, we recommend calling us at 877-639-9648.