Package Include: 2 pieces Length: Length of Sensor 1：370mm Length of Sensor 2:370mm OE: 250-24360, 250-54113, 25054113, 234-9050, 8946704010, 8946707020, 8946733130, ES20327, ES20118, ES20326 Q&A: Q:What is Differences Between upstream and downstream O2 Sensor? A: .
