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Walker 250-24448 Oxygen Sensor
Overview of Walker 250-24448 Oxygen Sensor for Nissan and Infiniti
The Walker 250-24448 oxygen sensor is designed specifically for select Nissan and Infiniti models, including the 350Z, Altima, FX35, and G35. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by monitoring exhaust gases effectively.
- Heated oxygen sensor with 4-wire design for precise readings
- Specific fit for Nissan and Infiniti vehicles such as Maxima, Murano, and Q45
- 12.52-inch wiring harness length with 20-gauge wire for reliable connectivity
- Threaded mounting type with 18.0 mm thread diameter for secure installation
- Radiused polygon male connector for proper fit and electrical connection
- Overall length of 16.06 inches to accommodate factory specifications
Detailed Features and Specifications
This Walker Products OE oxygen sensor (part number 250-24448) features a heated sensor type that allows for faster warm-up times and improved fuel efficiency. The 4-wire configuration supports both the sensor element and the heater circuit, ensuring consistent operation under various driving conditions. The wiring harness length of 12.52 inches and 20-gauge wire measurement provide durability and ease of installation. The sensor’s threaded mounting type with an 18.0 mm diameter matches factory OEM specifications for a secure fit. Additionally, the radiused polygon male connector ensures compatibility with the vehicle’s wiring harness, reducing the risk of connection issues.
Walker Products OE Brand Line Information
The Walker Products OE line focuses on delivering emission control components that meet or exceed original equipment standards. This oxygen sensor is part of that line, designed to provide reliable performance and fitment for specific Nissan and Infiniti models. Walker Products OE parts are engineered to maintain factory-level emissions compliance and sensor accuracy, supporting vehicle longevity and regulatory requirements.
Common Applications and Issues Addressed
- Replacement for faulty or failing oxygen sensors in Nissan Altima and Infiniti FX45
- Resolves engine performance issues related to incorrect air-fuel mixture readings
- Helps correct rough idling and poor fuel economy caused by sensor malfunction
- Addresses check engine light triggers related to oxygen sensor faults
- Supports emissions system compliance for vehicles like the Nissan Sentra and Infiniti M35
Installation Notes and Tips
When installing the Walker 250-24448 oxygen sensor, ensure the vehicle is cool to avoid burns. Use appropriate tools to remove the old sensor and avoid damaging the threaded mounting hole. Verify the connector shape and gender match the vehicle’s wiring harness before installation. Proper torque specifications should be followed to prevent leaks or sensor damage. It is recommended to clear any diagnostic trouble codes after installation to reset the vehicle’s computer system.
Quality Assurance and Warranty
Walker Products OE oxygen sensors are manufactured to meet strict quality standards for durability and performance. While specific warranty details may vary, Walker typically offers coverage against defects in materials and workmanship. Using this sensor helps maintain emissions compliance and supports the vehicle’s onboard diagnostics system.
| Brand | Walker |
|---|---|
| Part Number | 250-24448 |
| Position | Walker Products OE, Downstream Left |
| Connector Gender | Male |
| Connector Shape | Radiused Polygon |
| Mounting Type | Threaded |
| Overall Length | 16.06 |
| Sensor Type | Heated |
| Thread Diameter | 18.0 |
| Universal Or Specific Fit | Specific |
| Wire Gauge Measurement | 20 |
| Wire Quantity | 4 |
| Wiring Harness Length | 12.52 |
This part fits 83 vehicles. Search below:
| Year | Make | Model | Transmission | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|---|
| 2010 | INFINITI | M45 | 4.5L | V8 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products OE | |
| 2009 | INFINITI | M45 | 4.5L | V8 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products OE | |
| 2009 | Nissan | Quest | 3.5L | V6 | GAS | Downstream Rear | Rear downstream oxygen sensor must be installed in correct position.; Walker Products OE | |
| 2008 | INFINITI | FX45 | 4.5L | V8 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products OE | |
| 2008 | INFINITI | M45 | 4.5L | V8 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products OE | |
| 2008 | Nissan | Maxima | 3.5L | V6 | GAS | Downstream Rear | Rear downstream oxygen sensor must be installed in correct position.; Walker Products OE | |
| 2008 | Nissan | Maxima | 3.5L | V6 | GAS | Downstream Front | Downstream front oxygen sensor required.; Walker Products OE | |
| 2008 | Nissan | Murano | 3.5L | V6 | Downstream Rear | OE Base Sensor | ||
| 2008 | Nissan | Quest | 3.5L | V6 | GAS | Downstream Rear | Rear downstream oxygen sensor must be installed in correct position.; Walker Products OE | |
| 2007 | INFINITI | FX45 | 4.5L | V8 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products OE | |
| 2007 | INFINITI | M45 | 4.5L | V8 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products OE | |
| 2007 | Nissan | Maxima | 3.5L | V6 | GAS | Downstream Front | Downstream front oxygen sensor required.; Walker Products OE | |
| 2007 | Nissan | Murano | 3.5L | V6 | GAS | Downstream Rear | Rear downstream oxygen sensor must be installed in correct position.; Walker Products OE | |
| 2007 | Nissan | Murano | 3.5L | V6 | GAS | Downstream Front | Downstream front oxygen sensor required.; Walker Products OE | |
| 2007 | Nissan | Quest | 3.5L | V6 | GAS | Downstream Rear | Rear downstream oxygen sensor must be installed in correct position.; Walker Products OE | |
| 2006 | INFINITI | FX35 | 3.5L | V6 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products OE | |
| 2006 | INFINITI | FX45 | 4.5L | V8 | GAS | Downstream Left | Del 11/2005; Downstream; Left; From 11/2005; Walker Products OE | |
| 2006 | INFINITI | FX45 | 4.5L | V8 | GAS | Downstream Left | Al 11/2005; Downstream; Left; To 11/2005; Walker Products OE | |
| 2006 | INFINITI | FX45 | 4.5L | V8 | GAS | Downstream Left | Downstream; Left; From 11/2005; Walker Products OE | |
| 2006 | INFINITI | FX45 | 4.5L | V8 | GAS | Downstream Left | Downstream; Left; To 11/2005; Walker Products OE | |
| 2006 | INFINITI | G35 | 3.5L | V6 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products OE | |
| 2006 | INFINITI | M35 | 3.5L | V6 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products OE | |
| 2006 | INFINITI | M45 | 4.5L | V8 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products OE | |
| 2006 | INFINITI | Q45 | 4.5L | V8 | GAS | Downstream Left | From 12/2005; Del 12/2005; Downstream; Left; Walker Products OE | |
| 2006 | INFINITI | Q45 | 4.5L | V8 | GAS | Downstream Left | To 12/2005; Al 12/2005; Downstream; Left; Walker Products OE | |
| 2006 | INFINITI | Q45 | 4.5L | V8 | GAS | Downstream Left | From 12/2005; Downstream; Left; Walker Products OE | |
| 2006 | INFINITI | Q45 | 4.5L | V8 | GAS | Downstream Left | 12/2005 Downstream Left Oxygen Sensor; Walker Products OE | |
| 2006 | Nissan | 350Z | 3.5L | V6 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products OE | |
| 2006 | Nissan | Altima | 3.5L | V6 | GAS | Downstream Rear | Rear downstream oxygen sensor must be installed in correct position.; Walker Products OE | |
| 2006 | Nissan | Altima | 2.5L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE | |
| 2006 | Nissan | Maxima | 3.5L | V6 | GAS | Downstream Front | Downstream front oxygen sensor required.; Walker Products OE | |
| 2006 | Nissan | Murano | 3.5L | V6 | GAS | Downstream Rear | Rear downstream oxygen sensor must be installed in correct position.; Walker Products OE | |
| 2006 | Nissan | Murano | 3.5L | V6 | GAS | Downstream Front | Downstream front oxygen sensor required.; Walker Products OE | |
| 2006 | Nissan | Pickup | 2.4L | L4 | Upstream | OE Base Sensor | ||
| 2006 | Nissan | Quest | 3.5L | V6 | GAS | Downstream Rear | Rear downstream oxygen sensor must be installed in correct position.; Walker Products OE | |
| 2006 | Nissan | Sentra | 2.5L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE | |
| 2005 | INFINITI | FX35 | 3.5L | V6 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products OE | |
| 2005 | INFINITI | FX45 | 4.5L | V8 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products OE | |
| 2005 | INFINITI | G35 | 3.5L | V6 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products OE | |
| 2005 | INFINITI | Q45 | 4.5L | V8 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products OE | |
| 2005 | Nissan | 350Z | 3.5L | V6 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products OE | |
| 2005 | Nissan | Altima | 3.5L | V6 | GAS | Downstream Rear | Rear downstream oxygen sensor must be installed in correct position.; Walker Products OE | |
| 2005 | Nissan | Altima | 2.5L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE | |
| 2005 | Nissan | Maxima | 3.5L | V6 | GAS | Downstream Front | Downstream front oxygen sensor required.; Walker Products OE | |
| 2005 | Nissan | Murano | 3.5L | V6 | GAS | Downstream Rear | Rear downstream oxygen sensor must be installed in correct position.; Walker Products OE | |
| 2005 | Nissan | Murano | 3.5L | V6 | GAS | Downstream Front | Downstream front oxygen sensor required.; Walker Products OE | |
| 2005 | Nissan | Pickup | 2.4L | L4 | Upstream | OE Base Sensor | ||
| 2005 | Nissan | Quest | 3.5L | V6 | GAS | Downstream Rear | Rear downstream oxygen sensor must be installed in correct position.; Walker Products OE | |
| 2005 | Nissan | Sentra | 2.5L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE | |
| 2004 | INFINITI | FX35 | 3.5L | V6 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products OE | |
| 2004 | INFINITI | FX45 | 4.5L | V8 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products OE | |
| 2004 | INFINITI | G35 | 3.5L | V6 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products OE | |
| 2004 | INFINITI | M45 | 4.5L | V8 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products OE | |
| 2004 | INFINITI | Q45 | 4.5L | V8 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products OE | |
| 2004 | Nissan | 350Z | 3.5L | V6 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products OE | |
| 2004 | Nissan | Altima | 3.5L | V6 | GAS | Downstream Rear | Rear downstream oxygen sensor must be installed in correct position.; Walker Products OE | |
| 2004 | Nissan | Altima | 2.5L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE | |
| 2004 | Nissan | Maxima | 3.5L | V6 | GAS | Downstream Front | Downstream front oxygen sensor required.; Walker Products OE | |
| 2004 | Nissan | Murano | 3.5L | V6 | GAS | Downstream Rear | Rear downstream oxygen sensor must be installed in correct position.; Walker Products OE | |
| 2004 | Nissan | Murano | 3.5L | V6 | GAS | Downstream Front | Downstream front oxygen sensor required.; Walker Products OE | |
| 2004 | Nissan | Pickup | 2.4L | L4 | Upstream | OE Base Sensor | ||
| 2004 | Nissan | Quest | 3.5L | V6 | GAS | Downstream Rear | Rear downstream oxygen sensor must be installed in correct position.; Walker Products OE | |
| 2004 | Nissan | Sentra | Manual | 2.5L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE |
| 2004 | Nissan | Sentra | Automatic | 2.5L | L4 | GAS | Downstream | Downstream oxygen sensor for B1S2 position in California emissions.; Walker Products OE |
| 2004 | Nissan | Sentra | Automatic | 2.5L | L4 | GAS | Downstream | Downstream oxygen sensor for B1S2, not for vehicles in California.; Walker Products OE |
| 2004 | Nissan | Sentra | Automatic | 2.5L | L4 | GAS | Downstream | Downstream oxygen sensor compatible with California-ESV vehicles in bank 1 position 2.; Walker Products OE |
| 2004 | Nissan | Sentra | Automatic | 2.5L | L4 | GAS | Downstream | Downstream Bank 1 Sensor 2 for Non-Calif-ESV vehicles.; Walker Products OE |
| 2004 | Nissan | Sentra | Automatic | 2.5L | L4 | GAS | Downstream | Downstream oxygen sensor for second bank, sensor 1, non-California emissions.; Walker Products OE |
| 2003 | INFINITI | FX35 | 3.5L | V6 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products OE | |
| 2003 | INFINITI | FX45 | 4.5L | V8 | GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products OE | |
| 2003 | INFINITI | G35 | 3.5L | V6 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products OE | |
| 2003 | INFINITI | M45 | 4.5L | V8 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products OE | |
| 2003 | INFINITI | Q45 | 4.5L | V8 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products OE | |
| 2003 | Nissan | 350Z | 3.5L | V6 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products OE | |
| 2003 | Nissan | Murano | 3.5L | V6 | GAS | Downstream Rear | Rear downstream oxygen sensor must be installed in correct position.; Walker Products OE | |
| 2003 | Nissan | Murano | 3.5L | V6 | GAS | Downstream Front | Downstream front oxygen sensor required.; Walker Products OE | |
| 2003 | Nissan | Pickup | 2.4L | L4 | Upstream | OE Base Sensor | ||
| 2002 | INFINITI | Q45 | 4.5L | V8 | GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products OE | |
| 2002 | Nissan | Pickup | 2.4L | L4 | Upstream | OE Base Sensor | ||
| 2001 | Nissan | Pickup | 2.4L | L4 | Upstream | OE Base Sensor | ||
| 2000 | Nissan | Pickup | 2.4L | L4 | Upstream | OE Base Sensor | ||
| 1999 | Nissan | Pickup | 2.4L | L4 | Upstream | OE Base Sensor | ||
| 1998 | Nissan | Pickup | 2.4L | L4 | Upstream | OE Base 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.