Ensure optimal performance and compliance of your vehicle’s emissions system with the 68085750AA Differential Pressure Sensor. This highly accurate automotive sensor is engineered to monitor the pressure difference across the exhaust system or Diesel Particulate Filter (DPF). It features dual pressure ports (HI and LO) to precisely measure flow restrictions and a reliable 4-pin electrical connector for seamless integration with your vehicle’s engine control unit. Constructed from heavy-duty PPS 40% GF (Polyphenylene Sulfide reinforced with 40% Glass Fiber), the sensor housing provides exceptional resistance to extreme under-hood temperatures and harsh exhaust chemicals. To ensure accurate readings and prevent internal condensation buildup, the sensor is specifically designed to be mounted with the pressure ports pointing down.