HomeEmission Control > SensorsNTK 24669 Air / Fuel Ratio Sensor - Upstream, Upstream Left or Upstream Right
Part #: 24669

NTK 24669 Air / Fuel Ratio Sensor - Upstream, Upstream Left or Upstream Right

Direct Fit 4-Wire A/F Sensor, Upstream
27 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 4-Wire A/F Sensor, Upstream
Fitment: Toyota, Tacoma, Tundra, and 4Runner
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 4-Wire A/F Sensor 24669

The NTK Direct Fit 4-Wire A/F Sensor 24669 is designed specifically for Toyota 4Runner, Tacoma, and Tundra models. This heated air/fuel ratio sensor ensures precise monitoring of the engine's air-fuel mixture to support optimal emission control and engine performance.

  • Heated sensor type for faster response times
  • 12.3-inch wiring harness length for direct fit installation
  • 0.38-inch thread length with 18mm thread diameter
  • 4-wire configuration for accurate signal transmission
  • Specific fit for Toyota 4Runner, Tacoma, and Tundra models
  • No mounting bracket included

Details on the Direct Fit 4-Wire A/F Sensor Product Line

The NTK Direct Fit 4-Wire A/F Sensor product line is engineered to provide a precise replacement solution for specific vehicle applications. This line focuses on delivering sensors with exact wiring harness lengths and thread specifications to ensure seamless integration without modification. The 4-wire heated sensor design enhances durability and responsiveness, making it suitable for emission control systems in Toyota trucks and SUVs.

Product Description and Specifications

The NTK 24669 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. The 12.3-inch wiring harness length is tailored for direct fitment, reducing installation complexity. With a thread length of 0.38 inches and an 18mm thread diameter, this sensor mounts securely in the exhaust system. The 4-wire design supports both sensor heating and signal output, ensuring reliable communication with the vehicle’s engine control unit. This sensor is specifically designed for Toyota 4Runner, Tacoma, and Tundra models, providing a precise fit without the need for adapters or modifications.

Common Applications and Issues Addressed

  • Helps maintain proper air/fuel mixture for efficient combustion
  • Reduces emissions by providing accurate sensor data to the ECU
  • Resolves engine performance issues related to faulty air/fuel sensors
  • Prevents check engine light triggers caused by sensor failure
  • Supports compliance with emission regulations in Toyota 4Runner, Tacoma, and Tundra vehicles

Installation Notes and Tips

Installation of the NTK 24669 sensor requires no modifications due to its specific fit design. Ensure the vehicle is cool before removing the old sensor to avoid burns. Use an appropriate oxygen sensor socket for removal and installation. Verify the wiring harness connection is secure and free of damage. Since the sensor does not include a mounting bracket, use the existing mounting points on the vehicle. After installation, clear any diagnostic trouble codes and perform a system check to confirm proper operation.

Quality Assurance and Warranty

NTK sensors are manufactured to meet OEM standards for quality and durability. The Direct Fit 4-Wire A/F Sensor 24669 undergoes rigorous testing to ensure reliable performance in emission control systems. While specific warranty details are not provided here, NTK typically offers coverage against defects in materials and workmanship. Consult the product packaging or NTK documentation for exact warranty terms.

BrandNTK
Part Number24669
PositionDirect Fit 4-Wire A/F Sensor, Upstream
Mounting Bracket IncludedNo
Sensor TypeHeated
Thread Diameter18.000
Thread Length0.38
Universal Or Specific FitSpecific
Wire Quantity4
Wiring Harness Length12.3

This part fits 27 vehicles. Search below:

YearMakeModelDrive TypeTransmissionLitersCylindersPositionNotes
2004ToyotaTacomaAutomatic3.4LV6UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2004ToyotaTacoma2.7LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2004ToyotaTacoma2.4LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2004ToyotaTundraAutomatic3.4LV6UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2003ToyotaTacomaAutomatic3.4LV6UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2003ToyotaTacoma2.7LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2003ToyotaTacoma2.4LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2003ToyotaTundraAutomatic3.4LV6UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2002Toyota4Runner3.4LV6UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2002ToyotaTacomaAutomatic3.4LV6UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2002ToyotaTacoma2.7LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2002ToyotaTacoma2.4LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2002ToyotaTundraAutomatic3.4LV6UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2001Toyota4Runner3.4LV6UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2001ToyotaTacomaAutomatic3.4LV6UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2001ToyotaTacoma2.7LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2001ToyotaTacoma2.4LL4UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2001ToyotaTundraAutomatic4.7LV8Upstream RightB2S1; Calif. Emissions; OE Equivalent Design; Direct Fit 4-Wire A/F Sensor
2001ToyotaTundraAutomatic4.7LV8Upstream LeftB1S1; Calif. Emissions; OE Equivalent Design; Direct Fit 4-Wire A/F Sensor
2001ToyotaTundraAutomatic3.4LV6UpstreamOE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor
2000Toyota4RunnerAutomatic3.4LV6UpstreamB1S1; Calif. Emissions; OE Equivalent Design; Direct Fit 4-Wire A/F Sensor
2000Toyota4RunnerManual2.7LL4UpstreamB1S1; Calif. Emissions; OE Equivalent Design; Direct Fit 4-Wire A/F Sensor
2000ToyotaTacoma4WDAutomatic3.4LV6UpstreamB1S1; Calif. Emissions; OE Equivalent Design; Direct Fit 4-Wire A/F Sensor
2000ToyotaTacoma2.7LL4UpstreamB1S1; Calif. Emissions; OE Equivalent Design; Direct Fit 4-Wire A/F Sensor
2000ToyotaTundraAutomatic3.4LV6UpstreamB1S1; Calif. Emissions; OE Equivalent Design; Direct Fit 4-Wire A/F Sensor
1999Toyota4RunnerAutomatic3.4LV6UpstreamB1S1; Calif. Emissions; OE Equivalent Design; Direct Fit 4-Wire A/F Sensor
1999Toyota4RunnerAutomatic2.7LL4UpstreamB1S1; Calif. Emissions; OE Equivalent Design; Direct Fit 4-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:

136041361315203152041520615216213-2857234-9001234-900275-223075-223375-248975-249075-249975-2836894673402189467350118946735030894673504089467350508946735060ES10944OS1514OS1515OS1516OS1532OS1566OS1584OS5114SG1865SG760SG761SG762SG778SG812SG830

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