Left Oxygen Sensor for 1999-2003 Nissan Frontier & More - Bosch 15957

Bosch 15957 left oxygen sensor for the 1999-2003 Nissan Frontier V6 3.3L and other vehicles measures the air-fuel ratio in the exhaust and sends it to the ECU for combustion control. This Bosch O2 sensor is a switching-type unit for the downstream left position.

• Heated narrow-band sensor that gives the ECU air-fuel-ratio feedback
• Reaches operating temperature in under 10 seconds for quick closed-loop control
• Metal housing with an integrated heater element and TSP coating to resist vibration, corrosion and contamination
• Ceramic element and heater control for a consistent signal under thermal and vibration loads

Quick facts

• Part: Bosch 15957 left oxygen sensor
• Fits: 1999-2003 Nissan Frontier V6 3.3L and other vehicles
• Position: Downstream left
• Material: Metal housing
• Condition: New

A failing oxygen sensor can come with a check engine light, poor fuel economy or rough running, but other faults produce the same signs. If the sensor is the cause, this one replaces it. Before replacing it, look over the wiring and connector for cuts or melted insulation with the engine off and the exhaust cool. A shop can test the sensor signal itself.

Fits

This oxygen sensor fits the 1999-2003 Nissan Frontier V6 3.3L, which takes one in this position. It also works as an oxygen sensor for the 2000-2003 Nissan Xterra V6 3.3L. This listing is one sensor for the downstream left position, and other positions are separate parts.

Specifications

In the box

One oxygen sensor with its wiring harness. A mounting bracket is not included.

Installation notes

• Conductive anti-seize is pre-applied to the threads.
• Direct-fit connectors are made for quick installation.