Civic 2016-2021 2.0L Front and Rear Oxygen Sensors 234-5071 234-8025 Exhaust Monitoring Two-Piece Set

This oxygen sensor two-piece kit is designed for 2016–2021 Honda Civic 2.0L; front and rear sensors (models 234-5071 and 234-8025) work together to monitor oxygen in exhaust in real time, ensuring precise fuel–air ratio adjustments, improving fuel efficiency and reducing emissions. OEM numbers 365315BAA01 and 365325BAA01 for cross-checking. Replacement difficulty moderate; use a dedicated sensor socket; clean threads and apply anti-seize to prevent high-temperature seizure. AIUSLN-brand bulk supply product; factory-tested; suitable for repair shops or distributors to bulk-purchase, reducing aftersales returns.