The Nitrogen Oxide NOX Sensor 4326872 4326872RX is a high-quality oxygen sensor designed for the Cummins ISX 15.0 engine. It comes with a 1-year manufacturer warranty and is a direct fit, making installation easy. This sensor is interchangeably labeled as 4326872, 4326872RX, and 5WK96749B, ensuring compatibility with various models. With a blade terminal type and a female connector type, this sensor is a reliable choice for monitoring and reducing emissions in your vehicle. Made in China, this sensor is a crucial component for maintaining your vehicle's exhaust and emission systems.