HomeEmission Control > SensorsNTK 24401 Oxygen Sensor - Upstream Left or Upstream Right
Part #: 24401

NTK 24401 Oxygen Sensor - Upstream Left or Upstream Right

Direct Fit Oxygen Sensor, Upstream Left
⚙️ 22 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Direct Fit Oxygen Sensor, Upstream Left
🚗Fitment: INFINITI and Nissan, Q45, FX45, FX35, G35, M45, and 350Z
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Overview of NTK Direct Fit Oxygen Sensor 24401

The NTK Direct Fit Oxygen Sensor 24401 is designed specifically for select Infiniti and Nissan models, including the 350Z, FX35, FX45, G35, M45, and Q45. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by providing precise air-fuel mixture data to the vehicle's engine management system.

  • Heated sensor type for faster response times
  • Specific fit for Infiniti and Nissan models listed
  • Threaded mounting type with 18mm thread diameter
  • Four-wire design for reliable electrical connections
  • 21-inch wiring harness length for proper installation

Detailed Product Features and Specifications

The NTK Direct Fit Oxygen Sensor 24401 features a heated sensor element that allows it to reach operating temperature quickly, improving fuel efficiency and reducing emissions. Its specific fitment ensures compatibility with Infiniti and Nissan vehicles such as the 350Z, FX35, FX45, G35, M45, and Q45, eliminating the need for modifications. The sensor uses a threaded mounting type with an 18mm thread diameter, providing a secure and precise installation. The four-wire configuration supports both the sensor signal and heater circuit, while the 21-inch wiring harness length offers sufficient reach for factory-style installation.

About the NTK Direct Fit Oxygen Sensor Line

The Direct Fit Oxygen Sensor line by NTK is engineered to provide exact replacement sensors tailored to specific vehicle applications. This product line focuses on delivering sensors that match OEM specifications, ensuring proper fit, function, and durability. The 24401 sensor is part of this line, designed to meet the precise requirements of Infiniti and Nissan models for emission control systems.

Common Applications and Issues Addressed

  • Restores accurate air-fuel ratio readings for engine control
  • Helps resolve check engine light codes related to oxygen sensors
  • Improves fuel economy by optimizing combustion efficiency
  • Reduces harmful emissions by maintaining proper sensor function
  • Prevents rough idling and engine performance issues caused by faulty sensors

Installation Notes and Tips

Installation of the NTK 24401 oxygen sensor requires removal of the old sensor from the exhaust system and threading the new sensor into place using the 18mm threaded mount. The 21-inch wiring harness length allows for straightforward connection to the vehicle’s existing wiring harness without extension. It is recommended to use anti-seize compound on the threads to facilitate future removal. Ensure the sensor wiring is routed away from hot exhaust components to prevent damage.

Quality Assurance and Warranty

NTK oxygen sensors are manufactured to meet strict quality standards and OEM specifications. The Direct Fit Oxygen Sensor 24401 undergoes rigorous testing to ensure durability and reliable performance in emission control applications. While specific warranty details are not provided here, NTK typically offers coverage against defects in materials and workmanship for a defined period. Consult product documentation or the manufacturer for exact warranty terms.

BrandNTK
Part Number24401
PositionDirect Fit Oxygen Sensor, Upstream Left
Mounting TypeThreaded
Sensor TypeHeated
Thread Diameter18.000
Universal Or Specific FitSpecific
Wire Quantity4
Wiring Harness Length21.0000

This part fits 22 vehicles. Search below:

YearMakeModelDrive TypeLitersCylindersPositionNotes
2006INFINITIQ454.5LV8Upstream LeftB1S1; To 12/05; OE MFR: NTK; Direct Fit Oxygen Sensor
2005INFINITIFX454.5LV8Upstream LeftBank 1 Sensor 1 Oxygen Sensor; Direct Fit Oxygen Sensor
2005INFINITIQ454.5LV8Upstream LeftBank 1 Sensor 1 Oxygen Sensor; Direct Fit Oxygen Sensor
2004INFINITIFX353.5LV6Upstream RightB1S1; 2004 Model Year; OE MFR: NTK; Direct Fit Oxygen Sensor
2004INFINITIFX353.5LV6Upstream LeftB2S1; 2004 Model Year; OE MFR: NTK; Direct Fit Oxygen Sensor
2004INFINITIFX454.5LV8Upstream LeftBank 1 Sensor 1 Oxygen Sensor; Direct Fit Oxygen Sensor
2004INFINITIG35RWD3.5LV6Upstream RightBank 1 Sensor 1 Oxygen Sensor; Direct Fit Oxygen Sensor
2004INFINITIG35RWD3.5LV6Upstream LeftBank 2, sensor 1, Oxygen Sensor.; Direct Fit Oxygen Sensor
2004INFINITIM454.5LV8Upstream LeftBank 1 Sensor 1 Oxygen Sensor; Direct Fit Oxygen Sensor
2004INFINITIQ454.5LV8Upstream LeftBank 1 Sensor 1 Oxygen Sensor; Direct Fit Oxygen Sensor
2004Nissan350Z3.5LV6Upstream RightBank 1 Sensor 1 Oxygen Sensor; Direct Fit Oxygen Sensor
2004Nissan350Z3.5LV6Upstream LeftBank 2, sensor 1, Oxygen Sensor.; Direct Fit Oxygen Sensor
2003INFINITIFX353.5LV6Upstream RightBank 1 Sensor 1 Oxygen Sensor; Direct Fit Oxygen Sensor
2003INFINITIFX353.5LV6Upstream LeftBank 2, sensor 1, Oxygen Sensor.; Direct Fit Oxygen Sensor
2003INFINITIFX454.5LV8Upstream LeftBank 1 Sensor 1 Oxygen Sensor; Direct Fit Oxygen Sensor
2003INFINITIG353.5LV6Upstream RightBank 1 Sensor 1 Oxygen Sensor; Direct Fit Oxygen Sensor
2003INFINITIG353.5LV6Upstream LeftBank 2, sensor 1, Oxygen Sensor.; Direct Fit Oxygen Sensor
2003INFINITIM454.5LV8Upstream LeftBank 1 Sensor 1 Oxygen Sensor; Direct Fit Oxygen Sensor
2003INFINITIQ454.5LV8Upstream LeftBank 1 Sensor 1 Oxygen Sensor; Direct Fit Oxygen Sensor
2003Nissan350Z3.5LV6Upstream RightBank 1 Sensor 1 Oxygen Sensor; Direct Fit Oxygen Sensor
2003Nissan350Z3.5LV6Upstream LeftBank 2, sensor 1, Oxygen Sensor.; Direct Fit Oxygen Sensor
2002INFINITIQ454.5LV8Upstream LeftBank 1 Sensor 1 Oxygen Sensor; Direct Fit Oxygen Sensor

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

155241566522690AL60022691AR210234-430875-301975-3134SG1405

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.