NTK 24408 Oxygen Sensor - Downstream Rear or Downstream Right

Direct Fit Oxygen Sensor for Nissan and Infiniti

NTK 24408 is a direct fit heated oxygen sensor built for specific downstream applications on select Nissan and Infiniti vehicles. It uses a threaded mounting design, a 4-wire configuration, and a 14.5-inch wiring harness length for OE-style replacement on the correct bank and sensor location.

Key Features

• Direct Fit Oxygen Sensor from NTK
• Heated sensor design for downstream emissions monitoring
• Specific fit application with threaded mounting
• 4-wire configuration with 14.5000 wiring harness length
• 18.000 thread diameter
• OE-focused design for import applications

Product Line Details

NTK Direct Fit Oxygen Sensors are part of NTK’s OE-oriented sensor line for import and domestic vehicles. The brand uses controlled ceramic manufacturing and extensive production testing to support fit, form, and function that align with original equipment requirements.

Detailed Description

Part number 24408 is engineered for downstream oxygen sensor replacement on select Infiniti M45, FX45, FX35, G35, M35, and Q45 models, as well as Nissan Quest, 350Z, Altima, and Maxima applications listed below. This sensor is a direct replacement for B1S2 and B2S2 locations where specified, helping restore accurate exhaust feedback for the engine management system. This part cross-references Bosch (e.g., 15521, 15522) for the same application.

What It Helps Address

• Check engine light related to oxygen sensor performance
• Incorrect downstream air-fuel feedback readings
• Emissions test failures tied to sensor response issues
• Rough idle or drivability concerns caused by faulty exhaust feedback
• Replacement needs for worn or contaminated OE sensors

Installation Notes and Fitment

• Fits 2006-2010 INFINITI M45, Downstream Right
• Fits 2003-2004 INFINITI M45, Downstream Right
• Fits 2005-2009 Nissan Quest, Downstream Rear
• Fits 2003-2008 INFINITI FX45, Downstream Right
• Fits 2003-2006 INFINITI FX35, Downstream Right
• Fits 2003-2006 INFINITI G35, Downstream Right
• Fits 2006 INFINITI M35, Downstream Right
• Fits 2002-2006 INFINITI Q45, Downstream Right
• Fits 2003-2006 Nissan 350Z, Downstream Right
• Fits 2005-2006 Nissan Altima, Downstream Rear
• Fits 2004-2006 Nissan Maxima, Downstream Rear
• Fits 2004 Nissan Altima, Downstream Rear; From 1/04

Before ordering, confirm the vehicle year, make, model, and sensor position against the existing connector and exhaust location. The threaded mount and harness length should match the original sensor layout for proper installation.

Quality Assurance

NTK manufactures oxygen sensors with extensive production testing to help ensure reliability and OE-level performance expectations. As a major original equipment oxygen sensor supplier, NTK supports import and domestic applications with direct-fit sensor coverage.