Upstream Fits 1999-2001 Mercury Mountaineer 5.0L O2 Oxygen Sensor Fits 234-4403

Oxygen O2 Sensor Upstream Sensor 234-4401 For 1999-2001 Mercury Mountaineer 5.0L

New Oxygen O2 Sensor for 1997-2010 Mercury Mountaineer V6 4.0L V8 4.6L 5.0L

Upstream 02 Oxygen O2 Sensor 234-4403 For 2001-2010 Ford Ranger Mazda B4000 4.0L

NTK 22500 Oxygen O2 Sensor for 1990-2011 Ford Jaguar Lincoln Mazda Mercury

Bosch 15664 Oxygen Sensor for 1999-2012 Ford Lincoln Mazda Mercury Vehicles

Bosch 15718 Oxygen O2 Sensor for 1990-2016 Ford Lincoln Mazda Mercury Vehicles

2Pcs Upstream & Downstream Oxygen O2 Sensor For 2001-2011 Ford Ranger 3.0L 4.0L