Precautions for purchase - Please use Amazon Your Garage to verify fitment by your vehicle’s year, make, and model and confirm the OE number of the replaceable part. What this part does - Replaces a worn or failed oxygen sensor to restore proper air-fuel management. - Improves engine efficiency and performance and enhances fuel economy. - Reduces CO2 and other harmful emissions. OE standard and quality - Oxygen sensors are built to meet or exceed OE specifications, with strict quality control testing. - Each component matches or improves on the OE design for fast, easy installation and dependable performance. Replacement part numbers - 234-9009, 234-9007, 89465-06030, 89465-06080, 89465-33180 Key attributes - Function: OE-style oxygen sensor replacement for accurate engine management. - Compatibility: Designed to fit the listed OE replacement numbers and align with OE connector and mounting interfaces. - Installation: Built to match OE design for straightforward installation and reliable operation. - Performance: Aims to restore proper sensor readings, supporting fuel economy and emissions control. Applications and use scenarios - Routine maintenance: Replace aging O2 sensors on vehicles that require the listed replacement part numbers to maintain engine performance and emissions control. - Diagnostic replacement: When the engine management system indicates suspected O2 sensor fault, install these sensors to restore accurate readings. - Emissions readiness: Use for vehicles that need to pass emissions testing by ensuring sensor accuracy and proper fuel trimming.