Downstream Air-Fuel Ratio Sensor for Maserati Quattroporte Levante Ghibli S Q4
Replace a worn or faulty downstream oxygen sensor with IWOKPHD’s 670031348 unit designed for Maserati models. This downstream air-fuel ratio sensor (O2 sensor) uses a piezoelectric sensing element with a heating function to deliver fast, stable readings of exhaust gas composition. By providing accurate fuel-lean/ rich feedback to the engine control unit, it helps restore proper fuel trim, improves idle quality, reduces emissions, and supports consistent performance across Maserati Quattroporte, Levante, and Ghibli variants. A precise, direct-fit replacement means you can avoid guesswork and keep your Maserati running cleanly and efficiently.
Main Description
Engineered for reliability, this sensor targets the downstream position in the exhaust stream to monitor the final combustion byproducts after the catalytic converter. The heating capability speeds up sensor warm-up, enabling the ECU to begin optimal fuel management sooner, even in cold starts. Replacing a degraded downstream sensor helps prevent excessive fuel consumption, smoother throttle response, and potential catalytic converter stress caused by inaccurate air-fuel readings. With OEM-compatible fitment and robust construction, it’s a solid choice for owners who demand real, lasting improvements rather than quick fixes.
Benefits & Tips
- Benefit: Restores accurate exhaust gas monitoring to support proper fuel trimming and lower emissions.
- Benefit: Improves cold-start performance and throttle response by delivering faster sensor heating and stable readings.
- Tips: Verify compatibility by matching the Part Number 670031348 or checking your original sensor. If you’re unsure which item fits your car, send the Part Number or original photos for confirmation before ordering. After installation, monitor for any remaining diagnostic codes and reset the ECU if recommended by your vehicle’s service procedures.
Product Specifications
- Brand: IWOKPHD
- Part Number: 670031348
- Sensor Type: Downstream Oxygen Sensor (Air-Fuel Ratio Sensor)
- Measurement: Downstream monitoring for final exhaust gas composition
- Technology: Piezoelectric
- Heating: Heating Type
- Origin: Mainland China
- Applications: For Maserati Quattroporte (2013-2016 V6 330bhp; 2013-2016 S V6 410bhp; 2013-2020 GTS; 2013-2016 S Q4; 2017-2020 S V6 410bhp; 2017-2020 S Q4); Ghibli (2014-2016; 2014-2016 S; 2014-2016 S Q4; 2017-2020); Levante (2017-2020; 2017-2020 S)
- Warranty: 2 years
Package includes:
- 1 x Downstream Air-Fuel Ratio Sensor (Part No. 670031348)
Warnings/Reminders
- Please check the picture and the part number carefully to ensure you bought the right part for your car.
- If you cannot confirm which item fits your car, please send the Part Number or the Original product photos to us to confirm before order.
- The only way to be 100% sure that the part will fit your vehicle is to check your original part. We will check for you and reply within 24 hours.
All electronic and mechanical equipment, devices and machines sold by InterCyprus to EU countries are CE certified and carry a two year warranty.
Since 2002, InterCyprus has delivered reliable auto parts with consistent quality and service you can trust.