Upstream Oxygen O2 Sensor for 2004 2005 2006 Nissan Altima Titan 12499877

Product Overview

This aftermarket replacement upstream oxygen O2 sensor is intended for the listed 2004, 2005, and 2006 Nissan Altima and Nissan Titan applications and references part number 12499877. An upstream oxygen sensor measures oxygen content in the exhaust stream to provide information used by the engine control system.

Key Features & Performance

• Upstream oxygen O2 sensor for the applications identified in the title.
• Measures oxygen content in the exhaust stream as part of the engine control system.
• References part number 12499877 for comparison during fitment verification.
• Used when servicing or replacing the corresponding upstream oxygen sensor.

Fitment & Compatibility

• for 2004 Nissan Altima applications
• for 2005 Nissan Altima applications
• for 2006 Nissan Altima applications
• for 2004 Nissan Titan applications
• for 2005 Nissan Titan applications
• for 2006 Nissan Titan applications

Common Uses

• Replacing a worn, damaged, or malfunctioning upstream oxygen sensor.
• Supporting routine exhaust and engine control system service.
• Servicing the upstream oxygen sensing position on the listed vehicle applications.

Technical Specifications

• Product Type: Upstream oxygen O2 sensor
• Part Number: 12499877
• Vehicle Applications: 2004, 2005, and 2006 Nissan Altima and Nissan Titan
• Sensor Position: Upstream

Frequently Asked Questions

Q: What does an upstream oxygen O2 sensor do? A: It measures oxygen content in the exhaust stream and provides information used by the engine control system.

Q: How should fitment be verified? A: Compare the complete existing part number 12499877 and the complete vehicle model designation, including the applicable year and Nissan Altima or Nissan Titan model, before purchase.

This is an aftermarket replacement part and is not represented as genuine or original equipment. Product appearance and specifications may vary slightly by batch. Compatibility may vary by serial number, model year, or existing part number. Verify fitment before purchase.