Oxygen Sensor for 2001-2004 Nissan Altima - Bosch 15949

Bosch 15949 oxygen sensor for the 2001 Nissan Altima 4-cylinder 2.4L and the 2002-2004 Altima V6 3.5L measures oxygen in the exhaust and reports the air-fuel ratio to the ECU. This Bosch O2 sensor is a heated, narrow-band downstream unit.

• Switching-type narrow-band sensor that feeds air-fuel-ratio measurements to the ECU
• Reaches operating temperature in under 10 seconds for quick closed-loop control and lower cold-start emissions
• Built for exhaust gas up to 1,880°F, with a TSP coating against vibration, corrosion and contamination
• Metal housing with an integrated heater element

Quick facts

• Part: Bosch 15949 oxygen sensor
• Fits: 2001 Nissan Altima 4-cylinder 2.4L and the 2002-2004 Altima V6 3.5L
• Position: Downstream
• Material: Metal
• Condition: New

A worn sensor can bring a check engine light, rough running or poorer fuel economy, though other faults produce similar symptoms, so trace the cause first. With the engine off and cool, look over the wiring and connector for cracks, burns or contamination.

Fits

Use this O2 sensor as a direct-fit replacement on the 2001 Nissan Altima 4-cylinder 2.4L and the 2002-2004 Altima V6 3.5L. This listing is one sensor; the 2001 Altima 4-cylinder 2.4L and the 2002-2004 Altima V6 3.5L each take one.

Specifications

In the box

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

Installation notes

• Conductive anti-seize comes pre-applied on the threads.
• Direct-fit connectors.