Orion Motor Tech Air Fuel Ratio upstream Oxygen Sensor for Toyota Camry RAV4 Lexus RX300 ES300 8946748011 Compatible with 89467-41021, 8946741021, 234-9007, 2349007,15217 Designed to detect the amount of oxygen in the exhaust system. Direct fit Fast-acting heater optimizes sensor operation Coated threads for easy installation