NTK 24355 Air / Fuel Ratio Sensor - Upstream

Overview of NTK Direct Fit 5-Wire A/F Sensor 24355

The NTK Direct Fit 5-Wire A/F Sensor 24355 is designed specifically for select Mazda models, including the Mazda 3, Mazda 3 Sport, and Mazda 5. This heated air/fuel ratio sensor ensures accurate monitoring of the engine's air-fuel mixture to support optimal emission control and engine performance.

• Heated sensor type for faster activation and improved efficiency
• Specific fit for Mazda 3, 3 Sport, and 5 models
• 5-wire configuration for precise signal transmission
• 19.5-inch wiring harness length for convenient installation
• Thread diameter of 18.000 mm and thread length of 0.38 inches
• No mounting bracket included

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

The Direct Fit 5-Wire A/F Sensor line by NTK is engineered to provide a direct replacement solution for vehicles requiring a 5-wire heated air/fuel ratio sensor. This product line focuses on delivering sensors that match OEM specifications for wiring, thread size, and sensor type, ensuring compatibility and reliable performance. The 24355 part number is part of this line, tailored for specific Mazda applications to maintain emission standards and engine efficiency.

Product Description and Specifications

This NTK air/fuel ratio sensor features a heated sensor element that allows it to reach operating temperature quickly, improving the accuracy of air-fuel mixture readings shortly after engine start. The 5-wire design supports enhanced signal quality and durability. With a wiring harness length of 19.5 inches, the sensor provides sufficient reach for straightforward installation in the engine bay. The thread diameter of 18.000 mm and thread length of 0.38 inches ensure a secure and proper fit in the designated mounting location. This sensor is a specific fit for Mazda 3, 3 Sport, and 5 models, making it a reliable choice for maintaining factory emission control systems.

Common Applications and Issues Addressed

• Restores accurate air/fuel ratio readings for improved fuel efficiency
• Helps resolve engine performance issues related to incorrect sensor data
• Supports proper operation of the vehicle’s emission control system
• Reduces the risk of failed emissions tests due to sensor malfunction
• Prevents rough idling and hesitation caused by faulty air/fuel sensors

Installation Notes and Tips

When installing the NTK 24355 sensor, ensure the engine is cool to avoid burns. The 19.5-inch wiring harness length provides flexibility, but verify routing to prevent contact with hot or moving parts. Use appropriate tools to avoid damaging the 18.000 mm thread diameter and 0.38-inch thread length. Since no mounting bracket is included, reuse the original bracket or mounting hardware. Confirm compatibility with Mazda 3, 3 Sport, or 5 models before installation.

Quality Assurance and Warranty

NTK sensors are manufactured to meet strict quality standards and OEM specifications. The Direct Fit 5-Wire A/F Sensor 24355 undergoes rigorous testing to ensure durability and reliable performance in emission control applications. Warranty coverage details should be confirmed with the point of purchase or manufacturer documentation.