Detroit Diesel Inlet NOX Sensor – Genuine OE Manufactured by Skyline – Replaces A0101531928Ensure your aftertreatment system functions at peak performance with the Detroit Diesel Inlet NOX Sensor. As a genuine OE manufactured component from Skyline, this sensor provides the high precision data your Engine Control Module (ECM) needs to manage emissions effectively. Positioned as the inlet sensor, it monitors nitrogen oxide levels before they enter the SCR catalyst, serving as a critical data point for calculating proper DEF dosing and