Geely Citroen Zhonghua Oxygen Sensor 0258006026 Replacement 1628HN 9635978580 Universal Type

This oxygen sensor fits Geely Emgrand EC7 (2010-2014 1.8L), Citroën Xsara? Ellas (2008-2013 1.6L), and Zhonghua Junjie (2009-2015 1.8L), covering multi-brand generic needs. Core function is real-time monitoring of exhaust oxygen and feeding ECU to optimize air-fuel ratio for combustion efficiency and reduced emissions. OEM numbers include 0258006026, 1628HN, 9635978580, and F01R00C043 for cross-checking with original parts. Replacement difficulty medium; use a dedicated socket to remove; avoid thread damage; after install, use a diagnostic tool to clear fault codes and reset learning. This sensor is a generic design; stock turnover is fast; suitable for wholesalers covering multiple models.