Fitment: Compatible with Cadillac Escalade 99-20 & Chevrolet B7 99-00; C1500 96-99; C1500 Suburban 96-99; C2500 96-00; C2500 Suburban 96-99; C35 96-00; C3500 96-00; C3500HD 96-00; Camaro 93-02; Corvette 94-00; Express 2500 96-02; Express 3500 96-02; Tahoe 96-00 & GMC B7 99-00; C1500 96-99; C3500 96-00; K2500 96-99; K3500 96-00; Savana 2500 96-02; Savana 3500 96-02; Yukon 96-00 & More. Please use the year/make/model drop down bar confirm the compatibility before purchasing. Interchange OE Number: 19112572, 25179711, 25008307, 25008308, 25099215, 213-3457, 74-8308, SK2451067, 59009, 29008, 2451067, AF10056, 86-8308, 868308, MF8308, 25008219, 25008241, 25008246, 25008303, 25008941, 25008987 Function: The air mass sensor measures the mass of air inducted by the engine (air flow mass) with great precision. The signal produced by the air mass sensor is used to calculate the amount of fuel injection and in the case of diesel engines also to control the recirculation of exhaust. It is an important component in both the reduction of exhaust and air supply. Guarantee Quality: Our air flow sensors adopt platinum material as the sensor element and digital circuit which are the latest technology in this trade. The platinum sensor element is exact same to original parts material,it is the key performance of air flow sensor--the response time.Fast response will make the engine more powerful than lower.Its response speed is faster than most competitors. Warm tips: Effoexparts team is committed to providing customers with the best shopping experience.We provide you with a one-year warranty service,if you have any questions, please contact us in time.We will reply to your message as soon as possible.Our after-sales team will provide you with corresponding solutions. 1