Infiniti QX50 Oxygen Sensors
We found 17 eBay listings for Infiniti QX50 oxygen sensors, covering model years 2011 to 2024.
All Infiniti oxygen sensor listings by model
Last checked: . Confirm current price and fitment with the seller.
Compare oxygen sensors options for the Infiniti QX50 by part number, specification and seller fitment details. Matching listing titles mention 2011–2024; this is seller-described coverage, not confirmed fitment. Check the exact generation, engine and required specification before choosing a listing.
What the listings say: Of the 17 listings for Infiniti QX50 oxygen sensors checked on 8 November 2026, 11 give model years between 2011 and 2024, most often 2014 (4). Positions named in the titles: upstream (8), downstream (6). Brands named: Denso (3). Part numbers in more than one title: 234-9148. Titles are the sellers’ descriptions, not confirmed fitment: match the part number, model year, generation and engine before you buy.
Found 17 listings for "infiniti qx50 oxygen sensors"
Oxygen Sensor Set 2 Upstream 2 Downstream Fits 2014 Infiniti QX50 3.7L V6
O2 Oxygen Sensor Upstream+Downstream For 2011-13 Infiniti FX35 EX35 M35H QX50 V6
Delphi OEM Oxygen Sensor For Infiniti Q40 Q50 Q60 Q70L QX50 QX70 Nissan 370Z
Delphi OEM Air Fuel Ratio Oxygen Sensors For Infiniti Q50 Q60 Q70L QX50 QX60 Q70
DENSO 234-9148 Upstream Oxygen sensor For INFINITI QX50 2015-2017 3.7L V6
2019-2024 Infiniti QX50 OEM 2.0L Oxygen O2 Sensors Set Of 2
Upstream O2 Oxygen Sensor for Nissan Altima For INFINITI QX50 For QX55 2019-2021
SINTLY Upstream O2 Oxygen Sensor for Nissan Altima Infiniti Q40 QX50 QX60 24786
AISIN Qty(2) Downstream Oxygen (O2) Sensor for Nissan Murano 370Z Infiniti QX50
AISIN Downstream Oxygen (O2) Sensor for Nissan Altima Sentra Versa Infiniti QX50
2X Uptream Oxygen Sensor For 2014 INFINITI QX50 QX60 QX70 Nissan Quest 3.5L 3.7L
DENSO 234-9148 Upstream Oxygen sensor For INFINITI QX50 2015-2017 3.7L V6
DENSO 234-4380 Downstream Oxygen sensor For Infiniti QX50 2014 3.7L V6
INFINITI QX50 Oxygen O2 Sensor Upstream 2017 2016 2015 2014 OEM
INFINITI QX50 Oxygen O2 Sensor Downstream 2017 2016 2015 2014 OEM
Upstream Oxygen O2 Sensors For INFINITI QX50 2014 3.7L
4pcs Oxygen Sensor Up+Down For Nissan 370Z & Infiniti Fx35 G37 M37 M35h QX50
Questions about these listings
Which model years are named in the listings for Infiniti QX50 oxygen sensors?
11 listing titles give model years from 2011 to 2024; 2014 appears most often (4 listings). Check your car’s year against the fitment details in each listing.
Which positions are named in the listings for Infiniti QX50 oxygen sensors?
The titles name upstream (8 listings) and downstream (6). Order for the position on your car, as stated in the title or the seller’s fitment details.
Which part numbers appear in more than one listing for Infiniti QX50 oxygen sensors?
234-9148 appears in more than one title. Compare the number on your old part with the listing before you buy.
How do I check fitment before buying Infiniti QX50 oxygen sensors?
Find which sensor has failed. Upstream sensors sit before the catalytic converter and control fuelling; downstream sensors sit after it and monitor the converter. A fault code that names the bank and sensor number identifies the position. Some engines use a wideband (air-fuel ratio) sensor upstream. It is not interchangeable with an ordinary oxygen sensor, so match the type as well as the position.
Check compatibility before buying
These listings were found using Infiniti QX50 oxygen sensors search terms. A search match does not establish fitment. Compare the part number, vehicle year, generation and engine with the seller's compatibility details. Confirm delivery, returns and the final price on eBay before ordering.
Match the oxygen sensor to its exact position
Reference: NTK guide to oxygen (lambda) sensor types. Use the catalogue’s correct regional application.