O2 Oxygen Sensor Upstream Downstream for Nissan Murano (2004-2007) 3.5L

Direct-Fit Upstream and Downstream O2 Oxygen Sensor Kit for 2004-2007 Nissan Murano (Z50)

What it Does: The 4-piece oxygen sensor kit restores closed-loop air-fuel ratio management and post-cat monitoring on the 2004-2007 Nissan Murano to eliminate check engine lights and normalize fuel trim efficiency.

The Stock Nissan Murano Sensor Degradation

With extended mileage and thermal cycling, factory heated oxygen sensors on the VQ35DE suffer from internal zirconia element poisoning, silicon contamination, and heater circuit burnout. Slower sensor switching speeds alter the ECU's short-term fuel trim (STFT) feedback loop, causing rich-running conditions, unburned hydrocarbon buildup, rough idling, degraded fuel mileage, and trigger diagnostic trouble codes like P0130, P0135, P0420, or P0430.

The Engineering Solution

This full replacement sensor kit provides matched factory impedance and rapid response times for both upstream air-fuel ratio sensing and downstream catalytic efficiency verification. Engineered with robust dual-protection tube housings, high-temperature ceramic sensing cores, and factory-pinned harness connectors, each direct-fit sensor resists soot fouling and moisture intrusion. Replacing all four sensors as a calibrated set ensures balanced cylinder bank telemetry across Bank 1 and Bank 2.

What's Included

• 2pcs Upstream Oxygen Sensors
• 2pcs Downstream Oxygen Sensors

Technical Specifications

Compatibility

• 2004 Nissan Murano 3.5L V6 (Base, SE, SL)
• 2005 Nissan Murano 3.5L V6 (S, SE, SL)
• 2006 Nissan Murano 3.5L V6 (S, SE, SL)
• 2007 Nissan Murano 3.5L V6 (S, SE, SL)

Frequently Asked Questions & Fitment Warnings

Does this fit the Z50 Murano?

Yes, this is a direct fit for the 2004-2007 Nissan Murano equipped with the VQ35DE 3.5L V6 engine.

Do these sensors require wire splicing or repinning?

No, each sensor features direct-fit OE-style harness plugs and pre-threaded bodies for plug-and-play installation without wire splicing.

The Nissan Precision Standard

Ensure reliable fuel trims, clean throttle transitions, and long-term catalytic converter health under demanding city driving and highway cruising loads.