Check the listing for details. CX12028 Oxygen Sensor Direct Fit Replacement O2 Sensor Heated 1-Wire Connector. Condition: New – Open box. Listed at 23.90 USD. The CX12028 Oxygen Sensor is designed to accurately monitor oxygen levels within the exhaust system, providing essential feedback to help maintain proper air-fuel mixture in modern engine management systems. Engineered with a sensitive and fast-reacting sensing element, this replacement O2 sensor offers consistent performance under extreme exhaust temperatures and operating conditions. Constructed with durable, high-temperature materials and a rugged protective housing, the CX12028 helps ensure reliable signal communication to the vehicle's ECU. Its connector and wire layout match the specifications associated with the CX12028 part number, allowing for easy installation when matched correctly by plug style and sensor position.