Fitment: 

Upstream or Downstream Sensor 
Heated.
4 wire configuration.

Built and tested to strict quality control standards

2000-11 Hyundai Accent Upstream Downstream O2 Oxygen Sensor
2001-13 Hyundai Elantra Downstream O2 Oxygen Sensor L4 2.0L
2003-08 Hyundai Tiburon Downstream L4 2.0L
2005-09 Hyundai Tucson Downstream L4 2.0L
2006-11 Kia Rio Downstream O2 Oxygen Sensor L4 2.0L
2006-11 Kia Rio5 Downstream O2 Oxygen Sensor
2010 Kia Soul Downstream L4 1.6L
2010-11 Kia Soul Downstream L4 2.0L
2004-09 Kia Spectra Downstream O2 Oxygen Sensor
2005-09 Kia Spectra 5 Downstream O2 Oxygen Sensor
2005-10 Kia Sportage Downstream L4 2.0L

Note: For clarification purposes:
Upstream location is between the catalytic converter and the engine.
Downstream location is between the catalytic converter and the tailpipe.