Compatibility: 1999 Toyota 4Runner 2.7L 1996 Toyota T100 3.4L 1997 2000 Toyota Tacoma 3.4L Q&A: Q:What is Differences Between upstream and downstream O2 Sensor? .
2x Upstream & Downstream Oxygen Sensor For Honda Civic 1.8L 234-9119 234-4350
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2x Upstream+Downstream O2 Oxygen Sensor For 2009-13 Mazda 6 250-24859 250-25090
A-Premium 2x Upstream & Downstream O2 Oxygen Sensor for Suzuki Aerio 2002-2007
2x Upstream /Downstream O2 Oxygen Sensor for 2016-2021 Chevrolet Malibu L4 1.5L
