NTK 24391 Air / Fuel Ratio Sensor - Upstream

Overview of NTK Direct Fit 5-Wire A/F Sensor 24391

The NTK Direct Fit 5-Wire Air/Fuel Ratio Sensor 24391 is designed specifically for select Mazda models, including the Mazda 3 and Mazda 3 Sport. This heated sensor provides accurate air/fuel mixture readings to help maintain optimal engine performance and emissions control.

• Heated sensor type for faster warm-up and accurate readings
• Specific fitment for Mazda 3 and Mazda 3 Sport models
• 5-wire configuration with a 19.5-inch wiring harness length
• Thread diameter of 18.0 mm and thread length of 0.38 inches
• Does not include a mounting bracket

Detailed Product Description

The NTK Direct Fit 5-Wire A/F Sensor 24391 is engineered to provide precise air/fuel ratio measurements for improved engine management and emissions control. Featuring a heated sensor element, it reaches operating temperature quickly, ensuring reliable data under various driving conditions. The 5-wire design supports enhanced signal accuracy and durability. With a wiring harness length of 19.5 inches, this sensor offers sufficient reach for direct installation without modification. The thread diameter of 18 mm and thread length of 0.38 inches are tailored for a specific fit, ensuring compatibility with the exhaust system of Mazda 3 and Mazda 3 Sport vehicles.

About the Direct Fit 5-Wire A/F Sensor Product Line

The Direct Fit 5-Wire A/F Sensor line by NTK focuses on providing exact replacement sensors that match OEM specifications for specific vehicle applications. This product line emphasizes direct compatibility, reducing installation time and ensuring proper sensor function. The 5-wire heated sensor design supports accurate air/fuel ratio monitoring, which is critical for emission control systems and engine efficiency.

Common Applications and Issues Addressed

• Helps resolve engine performance issues related to incorrect air/fuel mixture
• Supports emission control compliance by providing accurate sensor data
• Addresses check engine light triggers related to faulty air/fuel sensors
• Improves fuel economy by enabling precise fuel management
• Reduces exhaust emissions by maintaining proper combustion ratios

Installation Notes and Tips

This sensor is designed for direct fit installation on compatible Mazda 3 and Mazda 3 Sport models. Ensure the vehicle is cool before installation to avoid injury. The 19.5-inch wiring harness length allows for straightforward connection without splicing. No mounting bracket is included, so use the existing bracket or mounting point on the vehicle. Verify thread size and length match the original sensor to prevent leaks or improper fit.

Quality Assurance and Warranty

NTK sensors are manufactured to meet strict quality standards and OEM specifications. The Direct Fit 5-Wire A/F Sensor 24391 undergoes rigorous testing to ensure durability and reliable performance. Warranty coverage details should be confirmed with the supplier or manufacturer, as they may vary by region.