Features:_x000D__x000D_Pretested, precise and high quality oxygen sensor. _x000D_Designed to improve fuel economy while reducing harmful emissions. _x000D_Helps the engine run efficiently in perfect air-gas ratio. _x000D_Improve engine response and performance. _x000D_Replace OE 4L3Z9G444AA, direct replacement for the original one. _x000D_Specification:_x000D_Condition: 100% Brand New_x000D_Material: ABS+Aluminum alloy_x000D_Color: as picture show_x000D_OE: 4L3Z9G444AA_x000D_Fitment:_x000D_Location: Upstream Left, Upstream Right, Downstream Left, Downstream Rightless 2006 fit for FX4 Crew Cab Pickup 4-Door 5.4L 330Cu. In. V8 FLEX SOHC Naturally Aspirated_x000D_Location: Upstream Left, Upstream Right, Downstream Left, Downstream Rightless 2006 fit for FX4 Crew Cab Pickup 4-Door 5.4L 330Cu. In. V8 GAS SOHC Naturally Aspirated_x000D_Location: Upstream Left, Upstream Right, Downstream Left, Downstream Rightless 2006 fit for FX4 Extended Cab Pickup 4-Door 5.4L 330Cu. In. V8 FLEX SOHC Naturally Aspirated_x000D_Location: Upstream Left, Upstream Right, Downstream Left, Downstream Rightless 2006 fit for FX4 Extended Cab Pickup 4-Door 5.4L 330Cu. In. V8 GAS SOHC Naturally Aspirated_x000D_Location: Upstream Left, Upstream Right, Downstream Left, Downstream Rightless 2006 fit for FX4 Standard Cab Pickup 2-Door 5.4L 330Cu. In. V8 FLEX SOHC Naturally Aspirated_x000D_Location: Upstream Left, Upstream Right, Downstream Left, Downstream Rightless 2006 fit for FX4 Standard Cab Pickup 2-Door 5.4L 330Cu. In. V8 GAS SOHC Naturally Aspirated_x000D_Location: Upstream Left, Upstream Right, Downstream Left, Downstream Rightless 2006 fit for Flotillera Standard Cab Pickup 2-Door 4.2L 256Cu. In. V6 GAS OHV Naturally Aspirated_x000D_Location: Upstream Left, Upstream Right, Downstream Left, Downstream Rightless 2006 fit for Edition Extended Cab Pickup 4-Door 5.4L 330Cu. In. V8 FLEX SOHC Naturally Aspirated_x000D_Location: Upstream Left, Upstream Right, Downstream Left, Downstream Rightless 2006 fit for Edition Extended Cab Pickup 4-Door 5.4L 330Cu. In. V8 GAS SOHC Naturally Aspirated_x000D_Location: Upstream Left, Upstream Right, Downstream Left, Downstream Rightless 2006 fit for King Ranch Crew Cab Pickup 4-Door 5.4L 330Cu. In. V8 FLEX SOHC Naturally Aspirated_x000D_Location: Upstream Left, Upstream Right, Downstream Left, Downstream Rightless 2006 fit for King Ranch Crew Cab Pickup 4-Door 5.4L 330Cu. In. V8 GAS SOHC Naturally Aspirated_x000D_Location: Upstream Left, Upstream Right, Downstream Left, Downstream Rightless 2006 fit for Lariat Crew Cab Pickup 4-Door 5.4L 330Cu. In. V8 FLEX SOHC Naturally Aspirated_x000D_Location: Upstream Left, Upstream Right, Downstream Left, Downstream Rightless 2006 fit for Lariat Crew Cab Pickup 4-Door 5.4L 330Cu. In. V8 GAS SOHC Naturally Aspirated_x000D_Location: Upstream Left, Upstream Right, Downstream Left, Downstream Rightless 2006 fit for Lariat Extended Cab Pickup 4-Door 5.4L 330Cu. In. V8 FLEX SOHC Naturally Aspirated_x000D_Location: Upstream Left, Upstream Right, Downstream Left, Downstream Rightless 2006 fit for Lariat Extended Cab Pickup 4-Door 5.4L 330Cu. In. V8 GAS SOHC Naturally Aspirated_x000D_Location: Upstream Left, Upstream Right, Downstream Left, Downstream Rightless 2006 fit for STX Extended Cab Pickup 4-Door 4.2L 256Cu. In. V6 GAS OHV Naturally Aspirated_x000D_Location: Upstream Left, Upstream Right, Downstream Left, Downstream Rightless 2006 fit for STX Extended Cab Pickup 4-Door 4.6L 281Cu. In. V8 GAS SOHC Naturally Aspirated_x000D_Location: Upstream Left, Upstream Right, Downstream Left, Downstream Rightless 2006 fit for STX Standard Cab Pickup 2-Door 4.2L 256Cu. In. V6 GAS OHV Naturally Aspirated_x000D_Location: Upstream Left, Upstream Right, Downstream Left, Downstream Rightless 2006 fit for STX Standard Cab Pickup 2-Door 4.6L 281Cu. In. V8 GAS SOHC Naturally Aspirated_x000D_Location: Upstream Left, Upstream Right, Downstream Left, Downstream Rightless 2006 fit for XL Extended Cab Pickup 4-Door 4.2L 256Cu. In. V6 GAS OHV Naturally Aspirated_x000D_Location: Upstream Left, Upstream Right, Downstream Left, Downstream Rightless 2006 fit for XL Extended Cab Pickup 4-Door 4.6L 281Cu. In. V8 GAS SOHC Naturally Aspirated_x000D_Location: Upstream Left, Upstream Right, Downstream Left, Downstream Rightless 2006 fit for XL Extended Cab Pickup 4-Door 5.4L 330Cu. In. V8 FLEX SOHC Naturally Aspirated_x000D_Location: Upstream Left, Upstream Right, Downstream Left, Downstream Rightless 2006 fit for XL Extended Cab Pickup 4-Door 5.4L 330Cu. In. V8 GAS SOHC Naturally Aspirated_x000D_Location: Upstream Left, Upstream Right, Downstream Left, Downstream Rightless 2006 fit for XL Standard Cab Pickup 2-Door 4.2L 256Cu. In. V6 GAS OHV Naturally Aspirated_x000D_Location: Upstream Left, Upstream Right, Downstream Left, Downstream Rightless 2006 fit for XL Standard Cab Pickup 2-Door 4.6L 281Cu. In. V8 GAS SOHC Naturally Aspirated_x000D_Location: Upstream Left, Upstream Right,