NTK 24528 Oxygen Sensor - Upstream Left

Direct Fit Oxygen Sensor for Nissan and INFINITI

NTK Oxygen Sensor 24528 is a direct fit, heated oxygen sensor built for specific upstream left applications. It is engineered for 2001-2003 Nissan Pathfinder and INFINITI QX4 coverage, with OE-style fit, form, and function for emission control service.

NTK’s Direct Fit Oxygen Sensor line focuses on application-specific replacement parts with the correct connector, harness length, thread size, and mounting style for the listed vehicle positions. Part number 24528 is built for import and domestic coverage where precise sensor response and reliable exhaust feedback are required.

Key Features

• Direct fit oxygen sensor for specific applications
• Heated sensor design for faster operating temperature
• 36.0000 wiring harness length
• 3-wire configuration
• 18.000 thread diameter with threaded mounting type
• OE-equivalent design for upstream left placement
• Built by NTK, a major original equipment oxygen sensor manufacturer

Fitment Details

• Fits 2002-2003 INFINITI QX4, upstream left.
• Fits 2002 Nissan Pathfinder, upstream left.
• Fits 2001 INFINITI QX4, upstream left.
• Fits 2001 Nissan Pathfinder, upstream left.

What This Sensor Helps Address

• Check engine light related to oxygen sensor performance
• Incorrect air-fuel ratio feedback from a worn upstream sensor
• Slow sensor response during closed-loop operation
• Emission control faults tied to exhaust oxygen monitoring
• Driveability issues caused by inaccurate exhaust gas readings

Installation Notes and Tips

Verify the vehicle position before installation: this part is for upstream left applications only. Confirm connector style, harness length, thread diameter, and 3-wire configuration against the removed sensor before replacement. For 2001 Nissan Pathfinder and 2001 INFINITI QX4 applications, note the B2S1 and 2001.5 model-year coverage from 8/2/00. This part cross-references Bosch 13224 and DENSO Auto Parts 234-3106 for the same application.

Quality Assurance

NTK manufactures oxygen sensors with controlled ceramic technology and extensive production testing to help ensure quality and reliability that meet or exceed OE specifications. As part of the NGK family of products, NTK supports OE application coverage with direct-fit sensor engineering for Nissan Pathfinder and INFINITI QX4 service.