BMW Oxygen Sensor - 11781742050

Oxygen sensors are vital for your engine to run correctly. They let the engine computer know how much fuel and air to mix to keep you running smoothly.  Replace O2 sensor with this OE replacement. This is a precat sensor and will work on either bank. Replaces BMW PNs: 11781742050, 11781433075, 11781742049 Fitment:  318i 1996-1999 (14) Oxygen Sensor - Upstream 318is 1996-1999 (12) Oxygen Sensor - Upstream 318ti 1996-1999 (16) Oxygen Sensor - Upstream 320i 2001-2005 (10) Oxygen Sensor - Upstream 323Ci 2000 (6) Oxygen Sensor - Upstream 323i 1999-2000 (4) Oxygen Sensor - Upstream 323i 1999-2000 (4) Oxygen Sensor - Upstream Left 323i 1999-2000 (4) Oxygen Sensor - Upstream Right 325Ci 2001-2003 (20) Oxygen Sensor - Upstream 325i 2001-2003 (18) Oxygen Sensor - Upstream 325xi 2001-2005 (30) Oxygen Sensor - Upstream 328Ci 2000 (6) Oxygen Sensor - Upstream 328i 1999-2000 (12) Oxygen Sensor - Upstream 330Ci 2001-2003 (18) Oxygen Sensor - Upstream