Keep your engine's fuel management reading true with the Delphi Oxygen Sensor ES20172. It drops in as a direct-fit replacement across a broad Nissan-family lineup, including the 2004-2010 Infiniti QX56, 2005-2015 Nissan Armada, 2005-2019 Nissan Frontier, 2003-2006 Nissan Sentra, 2004-2015 Nissan Titan and 2009-2012 Suzuki Equator — see the Buyer's Guide tab for the full list of applications.
An oxygen sensor samples the oxygen content of the exhaust stream and sends a voltage signal to the engine control unit, which uses that reading to adjust the air-fuel ratio.
- What it does: continuously monitors exhaust oxygen and reports it to the ECU for closed-loop air-fuel ratio control.
- Position coverage: cataloged for front (upstream) and rear (downstream) locations, including rear right and rear left, depending on the application — match the position used on your specific vehicle.
- Signs it may need replacing: a check-engine light, rough idle, poor fuel economy or a failed emissions test can point to a worn sensor; these symptoms have other causes, so diagnose before replacing.
Interchange: OS1711 · OS1716 · 13882 · 16511 · 16513 · 16596 · 234-4297 · 2344297 · 234-4814 · 2344814 · 234-4835 · 2344835 · 22690-8U300 · 226908U300 · 226A0-7S001 · 226A07S001 · 226A0-8U300 · 226A08U300 · 226A0-EA200 · 226A0EA200 · 24244 · 24644 · REA1584 · REA1588 · SG1659 · SG1692 · SG957 · SG962 · 18213-82Z20 · 1821382Z20 · 250-24453 · 25024453 · 250-24951 · 25024951 · SU6863
Manufacturer part number ES20172.
This part cross-references / interchanges with the following part numbers:
Frequently Asked Questions
What does the Delphi ES20172 oxygen sensor do?
It samples the oxygen content of the exhaust gas and sends a voltage signal to the engine control unit, which uses that reading to adjust the air-fuel ratio.
Which vehicles does this sensor fit?
It fits models including the 2004-2010 Infiniti QX56, 2005-2015 Nissan Armada, 2005-2019 Nissan Frontier, 2003-2006 Nissan Sentra and 2004-2015 Nissan Titan; see the Buyer's Guide tab for the full list.
What position does this oxygen sensor install in?
It is cataloged for front (upstream) and rear (downstream) positions, including rear right and rear left, depending on the application — match the position used on your specific vehicle.
What are signs my oxygen sensor may need replacing?
A check-engine light, rough idle, poor fuel economy or a failed emissions test may indicate a worn sensor. These symptoms can have other causes, so diagnose before replacing.
What is the manufacturer part number and what does it interchange with?
Manufacturer part number ES20172. It interchanges with numbers such as OS1711, OS1716, 234-4297 and 22690-8U300; the full interchange list is shown in the description.
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