Volkswagen Audi Skoda Oxygen Sensor 1K0998262AC Replaces 0258006422

This O2 sensor is designed for various VW, Audi, Skoda models with 1.8T/2.0T engines, covering 2006-2015 Magotan, Passat, A4L, Octavia, etc., with displacements from 1.8L to 2.0L. Core function is real-time monitoring of exhaust oxygen and feeding ECU to precisely control air-fuel ratio for efficient combustion and lower emissions. OEM 1K0998262AC, also compatible with replacement 0258006422 for stock checks. Replacement difficulty medium; use a dedicated O2 sensor socket to avoid thread damage; apply anti-seize before installation. For B2B buyers, this sensor uses a wideband design, faster response than narrowband, significantly improving fuel economy on older models; compatible with most EA888 engines from VW Group; common replacement part for workshops.