NTK 24384 Air / Fuel Ratio Sensor - Upstream Left or Upstream Right

Direct Fit Air/Fuel Ratio Sensor for Ford, Mazda, Mercury

NTK Part Number 24384 is a direct fit heated 5-wire air/fuel ratio sensor built for specific upstream applications. It is engineered for precise signal response and OE-style fitment on select Ford Fusion, Mazda 6, and Mercury Milan models.

Key Features

• Direct fit air/fuel ratio sensor for specific applications
• Heated sensor design for faster operating temperature
• 5-wire configuration
• 11.5-inch wiring harness length
• 18 mm thread diameter with 0.38 thread length
• Specific fit design for upstream right and upstream left positions
• No mounting bracket included

Product Line Details

NTK Direct Fit 5-Wire A/F Sensor products are built around OE application coverage and sensor technology developed by a major original equipment oxygen sensor supplier. NTK uses controlled ceramic manufacturing and extensive production testing to support consistent fit, form, and function across import and domestic vehicle applications. Part Number 24384 follows that direct-fit approach for the listed upstream positions.

Detailed Description

NTK 24384 is an emission control sensor for air/fuel ratio monitoring in select 2010 Ford Fusion and Mercury Milan models, plus 2009-2010 Mazda 6 applications. It is listed for upstream right and upstream left positions, including B1S1 and B2S1 configurations where specified. This part cross-references DENSO Auto Parts 234-5032 for the same application. If you are replacing a worn sensor on a Ford Fusion, Mazda 6, or Mercury Milan, this NTK sensor provides the correct direct-fit layout for the listed vehicle positions.

What It Helps Address

• Check engine light related to air/fuel ratio sensor performance
• Rough idle caused by inaccurate upstream sensor readings
• Fuel trim issues from delayed or inconsistent sensor response
• Emissions test failures tied to sensor faults
• Driveability concerns from degraded oxygen sensor feedback

Installation Notes

Verify the vehicle’s build date and sensor position before ordering. This part is listed for 2010 Ford Fusion and 2010 Mercury Milan vehicles built to 8/3/09, and for 2009-2010 Mazda 6 upstream right or upstream left applications as specified. Match the connector, wire count, thread size, and upstream location to the original sensor before installation. Use proper exhaust sensor service practices and confirm the harness routing clears hot exhaust components.

Quality Assurance

NTK manufactures oxygen and air/fuel ratio sensors with OE-focused engineering and production testing to meet or exceed original equipment specifications. The brand’s sensor expertise and controlled ceramic manufacturing support reliable fit and signal performance for the listed applications.