- Caution: Before purchase, carefully review the product description to confirm vehicle compatibility. Check the part images in this listing, especially the connector. It must be an exact match, or it may not fit your vehicle. - Solution: Improves engine efficiency and fuel economy. Reduces CO2 and other harmful emissions. - Standard: All oxygen sensors are built to meet or exceed OE specifications and undergo strict quality control tests. Each component matches the OE design or is improved to enable quick installation with superior performance and reliability. - Benefit: The Marsflex O2 sensor is made from high quality materials and is durable to ensure long service life. It can improve engine power and fuel economy and extend the life of the catalytic converter. - Use scenarios: - Replacing a worn oxygen sensor on a vehicle that requires OE standard sensors to restore performance. - Routine maintenance to sustain engine efficiency and lower emissions in passenger cars and light trucks. - Service or repair where an OE spec oxygen sensor is required to protect catalytic converter life and meet emissions standards.