1-Direct replacement 2-Correct Connector No cutting or splicing 3-Built and tested to quality control standards 4-Oxygen sensor is an electronic device that measures the proportion of oxygen in the gas or liquid being analyzed. It is positioned in the exhaust pipe and can detect the ratio of air and gasoline. Name:Nitrogen oxygen sensor Type:NOx Sensor Part Number: 68366500AB 68366500AC Fit:For Ram 2500 3500 6.7L 2019-2020 Fitment: For Ram 2500 , Laramie, Laramie Longhorn, Limited, Lone Star, 6.7L L6 - 2020 For Ram 3500 , Laramie, Laramie Longhorn, Limited, Lone Star, 6.7L L6 - 2020 For Ram 2500 , Laramie, Laramie Longhorn, Limited, Lone Star, 6.7L L6 - 2019 For Ram 3500 , Laramie, Laramie Longhorn, Limited, Lone Star, 6.7L L6 - 2019 Colour:As Shown Material:plastic+metal Package Contents: 1 x Nitrogen oxygen sensor Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.