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NTK 24324 Air / Fuel Ratio Sensor - Upstream, Upstream Left or Upstream Right
Overview of NTK Direct Fit 5-Wire A/F Sensor 24324
The NTK Direct Fit 5-Wire Air/Fuel Ratio Sensor 24324 is designed for precise emission control in select Audi, Porsche, and Volkswagen vehicles. This heated sensor ensures accurate air/fuel mixture readings to support optimal engine performance and emissions compliance.
- Heated sensor type for faster warm-up and accurate readings
- Specific fit for Audi, Porsche, and Volkswagen models including 911, A8 Quattro, Boxster, Cayenne, Cayman, CC, Macan, Passat, Passat CC, and Phaeton
- 5-wire configuration for reliable signal transmission
- 33.5-inch wiring harness length for convenient installation
- Thread diameter of 18.000 mm and thread length of 0.38 inches
- No mounting bracket included
About the Direct Fit 5-Wire A/F Sensor Product Line
The NTK Direct Fit 5-Wire A/F Sensor line is engineered to provide exact replacement sensors that match OEM specifications. This product line focuses on direct fitment, ensuring compatibility with specific vehicle models and simplifying installation without the need for modifications. The 5-wire heated sensor design supports accurate air/fuel ratio monitoring critical for emission control systems.
Detailed Product Description
The NTK part number 24324 is a heated air/fuel ratio sensor featuring a 5-wire design that delivers precise voltage signals to the engine control unit. Its 33.5-inch wiring harness length allows for flexible routing during installation. The sensor’s thread diameter of 18.000 mm and thread length of 0.38 inches are designed to match factory specifications for a secure fit. This sensor is compatible with a range of Audi, Porsche, and Volkswagen vehicles, including the Porsche 911 and Boxster, Audi A8 Quattro, and Volkswagen Passat models, among others. The absence of a mounting bracket means it installs directly into the designated exhaust port.
Common Applications and Issues Addressed
- Helps maintain proper air/fuel mixture for efficient combustion
- Supports emission control by providing accurate sensor data
- Resolves engine performance issues related to faulty air/fuel ratio readings
- Prevents check engine light triggers caused by sensor failure
- Improves fuel economy by enabling precise engine adjustments
Installation Notes and Tips
- Ensure vehicle compatibility with NTK part number 24324 before installation
- Use appropriate tools to avoid damaging the sensor threads (18.000 mm diameter)
- Verify wiring harness length (33.5 inches) is sufficient for your vehicle’s routing
- Do not attempt to install without disconnecting the battery to prevent electrical issues
- Check for exhaust leaks after installation to ensure sensor accuracy
Quality Assurance and Warranty
NTK sensors are manufactured to meet strict OEM standards for durability and performance. The Direct Fit 5-Wire A/F Sensor 24324 undergoes rigorous testing to ensure reliable operation in emission control systems. Warranty coverage details should be confirmed with the product documentation or supplier.
| Brand | NTK |
| Part Number | 24324 |
| Position | Direct Fit 5-Wire A/F Sensor, Upstream Left |
| Mounting Bracket Included | No |
| Sensor Type | Heated |
| Thread Diameter | 18.000 |
| Thread Length | 0.38 |
| Universal Or Specific Fit | Specific |
| Wire Quantity | 5 |
| Wiring Harness Length | 33.5 |
This part fits 95 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2018 | Porsche | Macan | 3.6L | V6 | Upstream Right | OE Equivalent Design; Direct Fit 5-Wire A/F Sensor |
| 2017 | Porsche | 911 | 4.0L | H6 | Upstream Right | Equivalent OE design oxygen sensor; Direct Fit 5-Wire A/F Sensor |
| 2017 | Porsche | 911 | 4.0L | H6 | Upstream Left | Equivalent OE design oxygen sensor; Direct Fit 5-Wire A/F Sensor |
| 2017 | Porsche | 911 | 3.0L | H6 | Upstream Right | Equivalent OE design oxygen sensor; Direct Fit 5-Wire A/F Sensor |
| 2017 | Porsche | 911 | 3.0L | H6 | Upstream Left | Equivalent OE design oxygen sensor; Direct Fit 5-Wire A/F Sensor |
| 2017 | Porsche | Cayenne | 3.6L | V6 | Upstream | Cylinders 1-3, Bank 1 Sensor 1, OE Equivalent Design; Direct Fit 5-Wire A/F Sensor |
| 2017 | Porsche | Macan | 3.6L | V6 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor |
| 2017 | Porsche | Macan | 3.0L | V6 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor |
| 2017 | Volkswagen | CC | 3.6L | V6 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor |
| 2016 | Audi | A8 Quattro | 6.3L | W12 | Upstream | Cyls. 1, 3, 5; OE Equivalent Design; Direct Fit 5-Wire A/F Sensor |
| 2016 | Porsche | 911 | 4.0L | H6 | Upstream Right | Equivalent OE design oxygen sensor; Direct Fit 5-Wire A/F Sensor |
| 2016 | Porsche | 911 | 4.0L | H6 | Upstream Left | Equivalent OE design oxygen sensor; Direct Fit 5-Wire A/F Sensor |
| 2016 | Porsche | 911 | 3.8L | H6 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor |
| 2016 | Porsche | 911 | 3.8L | H6 | Upstream Left | Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 5-Wire A/F Sensor |
| 2016 | Porsche | 911 | 3.4L | H6 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor |
| 2016 | Porsche | 911 | 3.4L | H6 | Upstream Left | Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 5-Wire A/F Sensor |
| 2016 | Porsche | Boxster | 3.8L | H6 | Upstream Right | Equivalent OE design oxygen sensor; Direct Fit 5-Wire A/F Sensor |
| 2016 | Porsche | Boxster | 3.8L | H6 | Upstream Left | Equivalent OE design oxygen sensor; Direct Fit 5-Wire A/F Sensor |
| 2016 | Porsche | Boxster | 3.4L | H6 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor |
| 2016 | Porsche | Boxster | 3.4L | H6 | Upstream Left | Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 5-Wire A/F Sensor |
| 2016 | Porsche | Boxster | 2.7L | H6 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor |
| 2016 | Porsche | Boxster | 2.7L | H6 | Upstream Left | Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 5-Wire A/F Sensor |
| 2016 | Porsche | Cayenne | 3.6L | V6 | Upstream | Cylinders 1-3, Bank 1 Sensor 1, OE Equivalent Design; Direct Fit 5-Wire A/F Sensor |
| 2016 | Porsche | Cayman | 3.8L | H6 | Upstream Right | Equivalent OE design oxygen sensor; Direct Fit 5-Wire A/F Sensor |
| 2016 | Porsche | Cayman | 3.8L | H6 | Upstream Left | Equivalent OE design oxygen sensor; Direct Fit 5-Wire A/F Sensor |
| 2016 | Porsche | Cayman | 3.4L | H6 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor |
| 2016 | Porsche | Cayman | 3.4L | H6 | Upstream Left | Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 5-Wire A/F Sensor |
| 2016 | Porsche | Cayman | 2.7L | H6 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor |
| 2016 | Porsche | Cayman | 2.7L | H6 | Upstream Left | Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 5-Wire A/F Sensor |
| 2016 | Porsche | Macan | 3.6L | V6 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor |
| 2016 | Porsche | Macan | 3.0L | V6 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor |
| 2016 | Volkswagen | CC | 3.6L | V6 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor |
| 2015 | Audi | A8 Quattro | 6.3L | W12 | Upstream | Cyls. 1, 3, 5; OE Equivalent Design; Direct Fit 5-Wire A/F Sensor |
| 2015 | Porsche | 911 | 3.8L | H6 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor |
| 2015 | Porsche | 911 | 3.8L | H6 | Upstream Left | Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 5-Wire A/F Sensor |
| 2015 | Porsche | 911 | 3.4L | H6 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor |
| 2015 | Porsche | 911 | 3.4L | H6 | Upstream Left | Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 5-Wire A/F Sensor |
| 2015 | Porsche | Boxster | 3.4L | H6 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor |
| 2015 | Porsche | Boxster | 3.4L | H6 | Upstream Left | Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 5-Wire A/F Sensor |
| 2015 | Porsche | Boxster | 2.7L | H6 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor |
| 2015 | Porsche | Boxster | 2.7L | H6 | Upstream Left | Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 5-Wire A/F Sensor |
| 2015 | Porsche | Cayenne | 3.6L | V6 | Upstream | Cylinders 1-3, Bank 1 Sensor 1, OE Equivalent Design; Direct Fit 5-Wire A/F Sensor |
| 2015 | Porsche | Cayman | 3.4L | H6 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor |
| 2015 | Porsche | Cayman | 3.4L | H6 | Upstream Left | Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 5-Wire A/F Sensor |
| 2015 | Porsche | Cayman | 2.7L | H6 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor |
| 2015 | Porsche | Cayman | 2.7L | H6 | Upstream Left | Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 5-Wire A/F Sensor |
| 2015 | Porsche | Macan | 3.6L | V6 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor |
| 2015 | Porsche | Macan | 3.0L | V6 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor |
| 2015 | Volkswagen | CC | 3.6L | V6 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor |
| 2014 | Porsche | 911 | 3.8L | H6 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor |
| 2014 | Porsche | 911 | 3.8L | H6 | Upstream Left | Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 5-Wire A/F Sensor |
| 2014 | Porsche | 911 | 3.4L | H6 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor |
| 2014 | Porsche | 911 | 3.4L | H6 | Upstream Left | Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 5-Wire A/F Sensor |
| 2014 | Porsche | Boxster | 3.4L | H6 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor |
| 2014 | Porsche | Boxster | 3.4L | H6 | Upstream Left | Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 5-Wire A/F Sensor |
| 2014 | Porsche | Boxster | 2.7L | H6 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor |
| 2014 | Porsche | Boxster | 2.7L | H6 | Upstream Left | Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 5-Wire A/F Sensor |
| 2014 | Porsche | Cayman | 3.4L | H6 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor |
| 2014 | Porsche | Cayman | 3.4L | H6 | Upstream Left | Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 5-Wire A/F Sensor |
| 2014 | Porsche | Cayman | 2.7L | H6 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor |
| 2014 | Porsche | Cayman | 2.7L | H6 | Upstream Left | Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 5-Wire A/F Sensor |
| 2014 | Volkswagen | CC | 3.6L | V6 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor |
| 2013 | Porsche | 911 | 3.8L | H6 | Upstream Right | B1S1; MA1.70 Eng; OE Equivalent Design; Direct Fit 5-Wire A/F Sensor |
| 2013 | Porsche | 911 | 3.8L | H6 | Upstream Left | B2S1; MA1.70 Eng; OE Equivalent Design; Direct Fit 5-Wire A/F Sensor |
| 2013 | Porsche | 911 | 3.8L | H6 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor |
| 2013 | Porsche | 911 | 3.8L | H6 | Upstream Left | Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 5-Wire A/F Sensor |
| 2013 | Porsche | 911 | 3.4L | H6 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor |
| 2013 | Porsche | 911 | 3.4L | H6 | Upstream Left | Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 5-Wire A/F Sensor |
| 2013 | Porsche | Boxster | 3.4L | H6 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor |
| 2013 | Porsche | Boxster | 3.4L | H6 | Upstream Left | Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 5-Wire A/F Sensor |
| 2013 | Porsche | Boxster | 2.7L | H6 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor |
| 2013 | Porsche | Boxster | 2.7L | H6 | Upstream Left | Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 5-Wire A/F Sensor |
| 2013 | Volkswagen | CC | 3.6L | V6 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor |
| 2012 | Porsche | 911 | 3.8L | H6 | Upstream Right | B1S1; MA1.70 Eng; OE Equivalent Design; Direct Fit 5-Wire A/F Sensor |
| 2012 | Porsche | 911 | 3.8L | H6 | Upstream Left | B2S1; MA1.70 Eng; OE Equivalent Design; Direct Fit 5-Wire A/F Sensor |
| 2012 | Porsche | 911 | 3.8L | H6 | Upstream Right | B1S1; MA1.03 Eng; OE Equivalent Design; Direct Fit 5-Wire A/F Sensor |
| 2012 | Porsche | 911 | 3.8L | H6 | Upstream Left | B2S1; MA1.03 Eng; OE Equivalent Design; Direct Fit 5-Wire A/F Sensor |
| 2012 | Porsche | 911 | 3.4L | H6 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor |
| 2012 | Porsche | 911 | 3.4L | H6 | Upstream Left | Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 5-Wire A/F Sensor |
| 2012 | Volkswagen | CC | 3.6L | V6 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor |
| 2011 | Porsche | 911 | 3.8L | H6 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor |
| 2011 | Porsche | 911 | 3.8L | H6 | Upstream Left | Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 5-Wire A/F Sensor |
| 2011 | Volkswagen | CC | 3.6L | V6 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor |
| 2010 | Porsche | 911 | 3.8L | H6 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor |
| 2010 | Porsche | 911 | 3.8L | H6 | Upstream Left | Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 5-Wire A/F Sensor |
| 2010 | Volkswagen | CC | 3.6L | V6 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor |
| 2010 | Volkswagen | Passat | 3.6L | V6 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor |
| 2010 | Volkswagen | Passat CC | 3.6L | V6 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor |
| 2009 | Volkswagen | CC | 3.6L | V6 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor |
| 2009 | Volkswagen | Passat | 3.6L | V6 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor |
| 2009 | Volkswagen | Passat CC | 3.6L | V6 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor |
| 2008 | Volkswagen | Passat | 3.6L | V6 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor |
| 2007 | Volkswagen | Passat | 3.6L | V6 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor |
| 2006 | Volkswagen | Passat | 3.6L | V6 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 5-Wire A/F Sensor |
| 2006 | Volkswagen | Phaeton | 6.0L | W12 | Upstream | Cylinders 1-3, Bank 1 Sensor 1, OE Equivalent Design; 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:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.