HomeEmission Control > SensorsNTK 24357 Air / Fuel Ratio Sensor - Upstream
Part #: 24357

NTK 24357 Air / Fuel Ratio Sensor - Upstream

Direct Fit 5-Wire A/F Sensor, Upstream
3 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Direct Fit 5-Wire A/F Sensor, Upstream
Fitment: Mazda, 3
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Overview of NTK Direct Fit 5-Wire A/F Sensor for Mazda 3

The NTK Direct Fit 5-Wire Air/Fuel Ratio Sensor (part number 24357) is designed specifically for Mazda 3 models. This heated sensor provides accurate air/fuel mixture readings to help maintain optimal engine performance and emissions control.

  • Heated sensor type for faster response times
  • 5-wire configuration for precise signal transmission
  • Specific fitment for Mazda 3 ensuring direct replacement
  • 30.5-inch wiring harness length for convenient installation
  • Thread diameter of 18.000 mm and thread length of 0.38 inches
  • No mounting bracket included

Detailed Product Description

The NTK Direct Fit 5-Wire A/F Sensor (part number 24357) is engineered to meet the exact specifications required by Mazda 3 vehicles. Its heated sensor design allows it to reach operating temperature quickly, improving the accuracy of air/fuel ratio measurements. The 5-wire setup supports reliable communication with the engine control unit, ensuring precise adjustments to fuel delivery. With a wiring harness length of 30.5 inches, this sensor offers flexibility during installation without the need for extensions or modifications. The sensor’s thread diameter of 18.000 mm and thread length of 0.38 inches match factory standards, providing a secure and leak-free fit. This sensor is a specific fit part, designed to replace the original equipment without requiring additional adapters or modifications.

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

The NTK Direct Fit 5-Wire A/F Sensor product line focuses on providing exact-fit air/fuel ratio sensors with a 5-wire heated design. These sensors are developed to deliver reliable performance and compatibility with specific vehicle models, such as the Mazda 3. By offering direct fit solutions, this product line simplifies installation and helps maintain factory-level emissions control and engine efficiency.

Common Applications and Issues Addressed

  • Helps correct inaccurate air/fuel mixture readings
  • Resolves engine performance issues related to faulty sensors
  • Supports proper emissions control compliance
  • Prevents check engine light triggers related to A/F sensor faults
  • Improves fuel economy by ensuring accurate sensor data

Installation Notes and Tips

When installing the NTK 24357 sensor on a Mazda 3, ensure the engine is cool to avoid burns. The 30.5-inch wiring harness length allows for straightforward routing without extensions. Use proper tools to avoid damaging the 18.000 mm thread diameter sensor during installation. Since no mounting bracket is included, reuse the original bracket if applicable. Verify sensor connections are secure to maintain signal integrity.

Quality Assurance and Warranty

NTK sensors are manufactured to meet OEM standards for fit and function. The Direct Fit 5-Wire A/F Sensor undergoes rigorous testing to ensure durability and reliable performance. While specific warranty details are not provided here, NTK typically offers coverage against manufacturing defects. Consult product documentation or the supplier for exact warranty terms.

BrandNTK
Part Number24357
PositionDirect Fit 5-Wire A/F Sensor, Upstream
Mounting Bracket IncludedNo
Sensor TypeHeated
Thread Diameter18.000
Thread Length0.38
Universal Or Specific FitSpecific
Wire Quantity5
Wiring Harness Length30.5

This part fits 3 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2009Mazda32.3LL4UpstreamBank 1 Sensor 1 Oxygen Sensor; Direct Fit 5-Wire A/F Sensor
2008Mazda32.3LL4UpstreamBank 1 Sensor 1 Oxygen Sensor; Direct Fit 5-Wire A/F Sensor
2007Mazda32.3LL4UpstreamBank 1 Sensor 1 Oxygen Sensor; Direct Fit 5-Wire A/F 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:

18118234-5013L33X188G1C

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