Downstream. Compatible with or fits: (Note: Bank-2 Sensor-2; Left; Position: Downstream Left; 2005 - 2008 Ford F-150 4.2L V6 VIN: 2 FI Naturally Aspirated GAS 2004 - 2008 Ford F-150 4.6L V8 VIN: W FI Naturally Aspirated GAS 2004 Ford F-150 5.4L V8 VIN: 5 FI Naturally Aspirated GAS). Compatible with or fits: (Note: Left; Position: Downstream Left; 2006 - 2008 Ford F-150 5.4L V8 VIN: V FI Naturally Aspirated FLEX 2005 - 2008 Ford F-150 5.4L V8 VIN: 5 FI Naturally Aspirated GAS). Compatible with or fits: (Note: Bank-1 Sensor-2; Right; Position: Downstream Right; 2005 - 2008 Ford F-150 4.2L V6 VIN: 2 FI Naturally Aspirated GAS 2004 - 2008 Ford F-150 4.6L V8 VIN: W FI Naturally Aspirated GAS 2004 Ford F-150 5.4L V8 VIN: 5 FI Naturally Aspirated GAS). Compatible with or fits: (Note: Right; Position: Downstream Right; 2006 - 2008 Ford F-150 5.4L V8 VIN: V FI Naturally Aspirated FLEX 2005 - 2008 Ford F-150 5.4L V8 VIN: 5 FI Naturally Aspirated GAS).
