Fitment

Fits for:

• Opel Zafira Tourer C (P12) 1.6 CDTi diesel
• Opel Astra K / Insignia B (selected 1.6 CDTi SCR versions)
• Vauxhall Zafira Tourer Mk III 1.6 CDTi
• Vauxhall Astra / Insignia diesel SCR applications (Euro 6)
• Engine: 1.6 CDTi diesel (B16DTH / B16DTJ / related GM diesel engines)
• Position: Exhaust NOx sensor (post-catalyst / SCR outlet depending on system)
• OE / Cross References: 55485442 / 5WK97247 / LW5442S / SNS247A / 0855609 / 70680402 / 5WK9 7247 family

FAQ

Q1: Are 55485442 and 5WK97247 the same sensor?
A1: Yes. 55485442 is the Opel/Vauxhall OE number, and 5WK97247 is the Continental/VDO reference used for the same NOx sensor and integrated control module.

Q2: What vehicles use this sensor?
A2: It is commonly used on Opel and Vauxhall diesel models such as Zafira Tourer C, Astra, and Insignia equipped with 1.6 CDTi engines and SCR (AdBlue) systems.

Q3: Is this inlet or outlet sensor?
A3: It is typically used as a downstream (post-catalyst / SCR outlet) NOx sensor in 1.6 CDTi applications.

Q4: What does this sensor do?
A4: It measures nitrogen oxide (NOx) levels in the exhaust and sends data to the ECU to control AdBlue dosing, ensuring emissions compliance and SCR system efficiency.