NTK 24638 Oxygen Sensor - Downstream

Overview of NTK Direct Fit Oxygen Sensor 24638

The NTK Direct Fit Oxygen Sensor 24638 is designed specifically for select INFINITI and Nissan models, including the Altima, G20, and Sentra. 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 oxygen sensor for faster response times
• Specific fit for INFINITI and Nissan Altima, G20, and Sentra models
• 14.25-inch wiring harness length for proper installation
• Threaded mounting type with 18mm thread diameter
• Four-wire design for reliable signal transmission

Detailed Product Features and Specifications

The NTK 24638 oxygen sensor features a heated sensor element that allows it to reach operating temperature quickly, improving emissions control efficiency. Its specific fitment ensures compatibility with INFINITI and Nissan vehicles such as the Altima, G20, and Sentra, eliminating the need for modifications. The sensor includes a 14.25-inch wiring harness, providing sufficient length for straightforward installation without excess slack. The threaded mounting type with an 18mm diameter allows secure attachment to the exhaust system. Additionally, the four-wire configuration supports both the sensor signal and heater circuit, ensuring consistent performance.

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, including wiring harness length, thread size, and mounting type. The 24638 sensor is part of this line, offering a direct replacement solution for INFINITI and Nissan models without the need for splicing or adapters.

Common Applications and Issues Addressed

• Restores accurate air-fuel ratio readings for engine control
• Resolves check engine light triggers related to oxygen sensor faults
• Improves fuel efficiency by ensuring proper combustion
• Reduces harmful emissions by maintaining optimal sensor function
• Eliminates rough idling or poor acceleration caused by faulty sensors

Installation Notes and Tips

When installing the NTK 24638 oxygen sensor, ensure the vehicle is cool to avoid burns. Use the correct 18mm socket for removal and installation to prevent damage to the sensor or exhaust threads. Verify the wiring harness length of 14.25 inches is sufficient for your vehicle’s routing. Avoid twisting or pulling on the wires during installation to maintain sensor integrity. It is recommended to apply anti-seize compound on the threads to facilitate future removal.

Quality Assurance and Warranty

NTK oxygen sensors undergo rigorous testing to meet OEM standards for durability and performance. The Direct Fit Oxygen Sensor 24638 is manufactured to provide reliable operation under normal driving conditions. While specific warranty details may vary, NTK typically offers coverage against defects in materials and workmanship, ensuring confidence in the sensor’s quality and longevity.