Compatibility: 2004 Nissan Frontier 3.3L 2004 Nissan Xterra 3.3L Q&A: Q:What is Differences Between upstream and downstream O2 Sensor? .
4pcs O2 Oxygen 02 Sensor for 2001-02 Chevrolet Camaro 3.8L Upstream + Downstream
2pcs Downstream For 99-02 Chevy Silverado 1500 4.3L V6 O2 Oxygen 02 Sensor
2PCS O2 Oxygen 02 Sensor Upper+Downstream for 02-05 Mitsubishi Lancer 2.0L L4
2pcs O2 Oxygen 02 Sensor Upper+Downstream for 02-05 Mitsubishi Lancer 2.0L L4
O2 Oxygen 02 Sensor For 2002-2007 Mitsubishi Lancer 2.0L L4 Upstream Sensor 1
O2 Oxygen 02 Sensor for 2002-2007 Mitsubishi Lancer 2.0L L4 Upstream Sensor 1
