For 1996-1999 Ford Taurus 3.0L 3.4L 4pcs Upsteam Downstream Oxygen O2 02 Sensor

For 2007-2008 Mercury Mariner 3.0L O2 02 Oxygen Sensor Heated 4pcs Upsteam Lower

Upsteam Downstream For 2008 Mazda Tribute 3.0L 4pcs Oxygen O2 02 Sensor

Upstream & Downstream O2 Oxygen Sensor Set of 4 For 1998-2005 Mercury Sable 3.0L

For 2007-2008 Mercury Mariner 3.0L O2 02 Oxygen Sensor Heated 4pcs Upsteam Lower

Oxygen O2 02 Sensor For 1996-1999 Mercury Sable 3.0L 4X Upsteam Downstream

O2 02 Oxygen Sensor For 2004-2007 Ford Freestar 3.9L 4.2L 4X Upsteam Under