Keep your engine's fuel-management feedback accurate with the DENSO Auto Parts Oxygen Sensor 234-4381, a 4-wire heated narrow-band sensor that installs as a direct-fit replacement on the listed applications — including the 2011-2013 INFINITI QX56 [V8-5.6L], 2014-2016 INFINITI QX80 [V8-5.6L], 2007-2013 NISSAN ALTIMA [L4-2.5L] and [V6-3.5L], and the 2009-2021 & 2023-2024 NISSAN GT-R [V6-3.8L]. See the Buyer's Guide tab for the full vehicle list. Cataloged in the downstream position, it measures exhaust oxygen after the catalytic converter so the ECM can verify converter efficiency and trim fuel delivery.
Per-application quantity varies — several V8-5.6L and V6-3.8L applications use two sensors, while the L4-2.5L and most V6-3.5L applications use one; sold individually, so order the quantity your vehicle requires. Country of origin: Japan.
Interchange: 15384 · 22690ED000 · 226A0EN21A · ES11074 · 24449 · 250-24771 · 25024771 · 350-34273 · 35034273 · Manufacturer part number 234-4381 (also 2344381)
This part cross-references / interchanges with the following part numbers:
What does this oxygen sensor do?
Cataloged in the downstream position, it measures oxygen in the exhaust after the catalytic converter, letting the ECM verify converter efficiency and adjust fuel delivery.
Is this a direct-fit sensor?
Yes — DENSO lists it as a direct fit for the applications in the Buyer's Guide, using a threaded mount and a male 4-wire connector.
How many sensors do I need?
Quantity varies by application: several V8-5.6L and GT-R V6-3.8L vehicles use two, while the L4-2.5L and most V6-3.5L applications use one. It is sold individually.
What does "heated, 4-wire, narrow-band" mean?
It's a narrow-band sensor with an internal heater on a 4-wire circuit, which brings it to operating temperature quickly for a faster, more reliable signal.
Could my symptoms be caused by something else?
Yes. A check-engine light or poor fuel economy can have several causes, so diagnose the fault first; if a failed oxygen sensor is the cause, this part replaces it.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
