DENSO Auto Parts Oxygen Sensor P/N:234-2052
Help keep the fuel mixture in check with the DENSO Auto Parts Oxygen Sensor 234-4295 — a direct-fit 02 sensor for the 2003-2004 Nissan Pathfinder 3.5L that threads into the upstream left position. This narrow-band, heated 4-wire sensor measures the oxygen content in the exhaust stream and signals the ECU, which trims fuel delivery accordingly.
Each sensor is precision-built and tested to strict OE standards for an exact, first-time replacement. Country of origin: United States.
This part cross-references / interchanges with the following part numbers:
Where does this DENSO 234-4295 oxygen sensor install?
It is the upstream left oxygen sensor for the 2003-2004 Nissan Pathfinder 3.5L, mounting in the exhaust ahead of the catalytic converter to monitor the air-fuel ratio.
Is this a camshaft, crank, or ABS sensor?
No. This is an oxygen (O2) sensor, a different component from the camshaft position, crankshaft position, and ABS wheel speed sensors.
How many wires does this sensor have?
It is a 4-wire heated, narrow-band oxygen sensor with a male connector and a 35.83 in wiring harness.
Is this a direct-fit sensor?
Yes. The manufacturer lists it as a direct-fit, specific-fit sensor with a threaded 0.708 in mounting for the listed application.
What signs may mean this oxygen sensor needs replacing?
A check engine light, rough idle, or reduced fuel economy can point to a failing O2 sensor. Diagnose the cause first, since these symptoms have other possible sources.
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.