Right Oxygen Sensor for 2001 Infiniti QX4 - Bosch 15377

Bosch 15377 right oxygen sensor for the 2001 Infiniti QX4 V6 3.5L is a Bosch O2 sensor that reports air-fuel ratio to the ECU. This Bosch premium oxygen sensor is a heated, narrow-band unit that helps the ECU keep combustion stable and emissions low.

• Switching-Type narrow-band heated design for air-fuel-ratio feedback to the ECU
• Metal housing, integrated heater element and TSP coating to resist vibration, corrosion and contamination
• Built to withstand exhaust streams up to 1,880°F
• Reaches operating temperature in under 10 seconds for quick closed-loop control

Quick facts

• Part: Bosch 15377 oxygen sensor
• Fits: 2001 Infiniti QX4 V6 3.5L
• Position: Downstream right
• Material: Metal housing
• Condition: New

A worn or failing oxygen sensor can show up as a check engine light, rough running or poorer fuel economy, but those signs can also come from other problems. Before replacing it, find the actual cause; with the engine off and cool, you can look over the wiring and connector for damage.

Fits

This is a direct-fit replacement oxygen sensor for the 2001 Infiniti QX4 V6 3.5L, made for the downstream right position.

Specifications

In the box

One oxygen sensor with its wiring harness; a mounting bracket is not included. This listing is one sensor for the downstream right position, and the 2001 Infiniti QX4 V6 3.5L takes one in that position. A sensor for another position is a separate part.

Installation notes

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