URO 1K0998262AD Oxygen Sensor O2 Wideband Air/Fuel Ratio Sensor

The URO 1K0998262AD is a replacement wideband oxygen (O2) sensor designed for Volkswagen, Audi, and Porsche diesel and gasoline applications. This is a heated, wideband air/fuel ratio sensor that continuously monitors exhaust oxygen content and transmits real-time data to the engine control unit (ECU) to optimize the air-fuel mixture for efficient combustion and proper emissions performance.

Key Features:

• Wideband (Air/Fuel Ratio) Sensor — provides precise oxygen measurement for optimal engine management
• Heated element — reaches operating temperature quickly for accurate readings from cold start
• 5-wire design with wiring harness included for direct-fit installation
• Threaded mount with 18mm thread diameter and 22mm hex size for standard installation
• Metal housing — built to withstand high exhaust temperatures and harsh under-hood conditions
• OEM part number: 1K0998262AD (also formatted as 1K0-998-262-AD)

OEM Cross-Reference Part Numbers:

• 03G906262A, 03L906262B, 059906262, 059906262B, 059906262F, 4H0906262C, 8R0906262

A faulty oxygen sensor can cause reduced fuel economy, poor engine performance, and emissions test failure. Replacing a worn O2 sensor restores proper fuel mapping, improves MPG, and clears related check engine light codes. Applying anti-seize compound to the threads during installation is recommended to ease future removal.