OE Quality
60-Day Returns

Walker 250-241104 Oxygen Sensor - Downstream, Downstream Left or Downstream Right
Overview of Walker Products OE Oxygen Sensor 250-241104
The Walker Products OE oxygen sensor 250-241104 is designed specifically for select INFINITI and Nissan models, including the M35h, Note, Q50, Q70, Versa, and Versa Note. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by providing precise air-fuel mixture data.
- Heated oxygen sensor with 4-wire design for reliable operation
- Specific fit for INFINITI and Nissan vehicles
- Threaded mounting type with 18.0 mm thread diameter
- Radiused polygon female connector for secure electrical connection
- Wiring harness length of 12.32 inches and overall length of 15.87 inches
- Wire gauge measurement of 20 for durability and signal integrity
Walker Products OE Brand Line Details
The Walker Products OE line focuses on delivering original equipment quality emission control components. This oxygen sensor 250-241104 is engineered to meet or exceed OEM specifications, ensuring compatibility and performance consistent with factory-installed parts. The product line emphasizes precise fitment and reliable sensor operation for emission systems in INFINITI and Nissan vehicles.
Product Features and Specifications
This oxygen sensor features a heated sensor type with four wires, allowing for faster sensor warm-up and improved emissions monitoring. The 18.0 mm threaded mounting ensures a secure fit in the exhaust system. The radiused polygon female connector provides a stable electrical connection, reducing the risk of signal loss. With a wiring harness length of 12.32 inches and an overall length of 15.87 inches, this sensor is designed for proper installation without excess slack or tension.
Common Applications and Issues Addressed
- Restores accurate air-fuel ratio readings for engine control units
- Helps resolve rough idling and poor fuel economy caused by faulty sensors
- Reduces emissions by ensuring proper catalytic converter function
- Prevents check engine light triggers related to oxygen sensor faults
- Improves overall engine performance and drivability in compatible INFINITI and Nissan models
Installation Notes and Tips
When installing the Walker Products OE oxygen sensor 250-241104, ensure the threaded mounting hole is clean and free of debris. Use appropriate anti-seize compound on the threads if recommended by the vehicle manufacturer. Confirm the radiused polygon female connector is fully seated to avoid electrical connection issues. Verify wiring harness routing to prevent contact with hot exhaust components or moving parts.
Quality Assurance and Warranty
Walker Products OE oxygen sensors are manufactured to meet strict quality standards, providing reliable performance and durability. This part number 250-241104 undergoes rigorous testing to ensure compatibility with specified INFINITI and Nissan models. Warranty coverage details should be confirmed with the product documentation or supplier.
| Brand | Walker |
|---|---|
| Part Number | 250-241104 |
| Position | Walker Products OE, Downstream |
| Connector Gender | Female |
| Connector Shape | Radiused Polygon |
| Mounting Type | Threaded |
| Overall Length | 15.87 |
| Sensor Type | Heated |
| Thread Diameter | 18.0 |
| Universal Or Specific Fit | Specific |
| Wire Gauge Measurement | 20 |
| Wire Quantity | 4 |
| Wiring Harness Length | 12.32 |
This part fits 76 vehicles. Search below:
| Year | Make | Model | Submodel | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|---|
| 2019 | Nissan | Versa | 1.6L | L4 | GAS | Downstream | B1S2; Downstream; To 08/2018; Walker Products OE | |
| 2019 | Nissan | Versa | 1.6L | L4 | GAS | Downstream | Downstream B1S2 Oxygen Sensor; Fits up to August 2018; Walker Products OE | |
| 2018 | INFINITI | Q50 | Hybrid Luxe | 3.5L | V6 | ELECTRIC/GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products OE |
| 2018 | INFINITI | Q50 | Hybrid Luxe | 3.5L | V6 | ELECTRIC/GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products OE |
| 2018 | INFINITI | Q70 | Hybrid | 3.5L | V6 | ELECTRIC/GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products OE |
| 2018 | INFINITI | Q70 | Hybrid | 3.5L | V6 | ELECTRIC/GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products OE |
| 2018 | Nissan | Versa | 1.6L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE | |
| 2017 | INFINITI | Q50 | Hybrid Premium | 3.5L | V6 | ELECTRIC/GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products OE |
| 2017 | INFINITI | Q50 | Hybrid Premium | 3.5L | V6 | ELECTRIC/GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products OE |
| 2017 | INFINITI | Q70 | Hybrid | 3.5L | V6 | ELECTRIC/GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products OE |
| 2017 | INFINITI | Q70 | Hybrid | 3.5L | V6 | ELECTRIC/GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products OE |
| 2017 | Nissan | Note | 1.6L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE | |
| 2017 | Nissan | Versa | 1.6L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE | |
| 2017 | Nissan | Versa | 1.6 SV | 1.6L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE |
| 2017 | Nissan | Versa | 1.6 SL | 1.6L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE |
| 2017 | Nissan | Versa | 1.6 S | 1.6L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE |
| 2017 | Nissan | Versa | 1.6 S Plus | 1.6L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE |
| 2017 | Nissan | Versa Note | SV | 1.6L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE |
| 2017 | Nissan | Versa Note | SR | 1.6L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE |
| 2017 | Nissan | Versa Note | SL | 1.6L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE |
| 2017 | Nissan | Versa Note | S Plus | 1.6L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE |
| 2016 | INFINITI | Q50 | Hybrid Premium | 3.5L | V6 | ELECTRIC/GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products OE |
| 2016 | INFINITI | Q50 | Hybrid Premium | 3.5L | V6 | ELECTRIC/GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products OE |
| 2016 | INFINITI | Q70 | Hybrid | 3.5L | V6 | ELECTRIC/GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products OE |
| 2016 | INFINITI | Q70 | Hybrid | 3.5L | V6 | ELECTRIC/GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products OE |
| 2016 | Nissan | Note | 1.6L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE | |
| 2016 | Nissan | Versa | 1.6L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE | |
| 2016 | Nissan | Versa | 1.6 SV | 1.6L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE |
| 2016 | Nissan | Versa | 1.6 SL | 1.6L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE |
| 2016 | Nissan | Versa | 1.6 S | 1.6L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE |
| 2016 | Nissan | Versa | 1.6 S Plus | 1.6L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE |
| 2016 | Nissan | Versa Note | SV | 1.6L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE |
| 2016 | Nissan | Versa Note | SR | 1.6L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE |
| 2016 | Nissan | Versa Note | SL | 1.6L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE |
| 2016 | Nissan | Versa Note | S | 1.6L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE |
| 2016 | Nissan | Versa Note | S Plus | 1.6L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE |
| 2015 | INFINITI | Q50 | 3.5L | V6 | ELECTRIC/GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products OE | |
| 2015 | INFINITI | Q50 | 3.5L | V6 | ELECTRIC/GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products OE | |
| 2015 | INFINITI | Q70 | Hybrid | 3.5L | V6 | ELECTRIC/GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products OE |
| 2015 | INFINITI | Q70 | Hybrid | 3.5L | V6 | ELECTRIC/GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products OE |
| 2015 | Nissan | Note | 1.6L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE | |
| 2015 | Nissan | Versa | 1.6L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE | |
| 2015 | Nissan | Versa | 1.6 SV | 1.6L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE |
| 2015 | Nissan | Versa | 1.6 SL | 1.6L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE |
| 2015 | Nissan | Versa | 1.6 S | 1.6L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE |
| 2015 | Nissan | Versa | 1.6 S Plus | 1.6L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE |
| 2015 | Nissan | Versa Note | SV | 1.6L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE |
| 2015 | Nissan | Versa Note | SR | 1.6L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE |
| 2015 | Nissan | Versa Note | SL | 1.6L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE |
| 2015 | Nissan | Versa Note | S | 1.6L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE |
| 2015 | Nissan | Versa Note | S Plus | 1.6L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE |
| 2014 | INFINITI | Q50 | 3.5L | V6 | ELECTRIC/GAS | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products OE | |
| 2014 | INFINITI | Q50 | 3.5L | V6 | ELECTRIC/GAS | Downstream Left | Downstream left oxygen sensor required.; Walker Products OE | |
| 2014 | INFINITI | Q70 | Hybrid | 3.5L | V6 | ELECTRIC/GAS | Downstream Right | Right downstream oxygen sensor fits models up to 11/2013 and all models from 11/2013.; Walker Products OE |
| 2014 | INFINITI | Q70 | Hybrid | 3.5L | V6 | ELECTRIC/GAS | Downstream Right | From 11/2013; Del 11/2013; Downstream; Right; Walker Products OE |
| 2014 | INFINITI | Q70 | Hybrid | 3.5L | V6 | ELECTRIC/GAS | Downstream Left | From 11/2013; Del 11/2013; Downstream; Left; Walker Products OE |
| 2014 | INFINITI | Q70 | Hybrid | 3.5L | V6 | ELECTRIC/GAS | Downstream Left | To 11/2013; Al 11/2013; Downstream; Left; Walker Products OE |
| 2014 | INFINITI | Q70 | Hybrid | 3.5L | V6 | ELECTRIC/GAS | Downstream Right | Downstream right fitment for vehicles up to November 2013.; Walker Products OE |
| 2014 | INFINITI | Q70 | Hybrid | 3.5L | V6 | ELECTRIC/GAS | Downstream Right | 11/2013 Downstream Right Oxygen Sensor; Walker Products OE |
| 2014 | INFINITI | Q70 | Hybrid | 3.5L | V6 | ELECTRIC/GAS | Downstream Left | From 11/2013; Downstream; Left; Walker Products OE |
| 2014 | INFINITI | Q70 | Hybrid | 3.5L | V6 | ELECTRIC/GAS | Downstream Left | Fits from up to November 2013, downstream on the left side.; Walker Products OE |
| 2014 | Nissan | Versa | 1.6L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE | |
| 2014 | Nissan | Versa | 1.6 SV | 1.6L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE |
| 2014 | Nissan | Versa | 1.6 SL | 1.6L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE |
| 2014 | Nissan | Versa | 1.6 S | 1.6L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE |
| 2014 | Nissan | Versa | 1.6 S Plus | 1.6L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE |
| 2014 | Nissan | Versa Note | SV | 1.6L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE |
| 2014 | Nissan | Versa Note | S | 1.6L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE |
| 2014 | Nissan | Versa Note | S Plus | 1.6L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE |
| 2013 | INFINITI | M35h | 3.5L | V6 | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products OE | ||
| 2013 | INFINITI | M35h | 3.5L | V6 | Downstream Left | Downstream left oxygen sensor required.; Walker Products OE | ||
| 2013 | Nissan | Versa | 1.6L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE | |
| 2012 | INFINITI | M35h | 3.5L | V6 | Downstream Right | Install downstream oxygen sensor on the right side.; Walker Products OE | ||
| 2012 | INFINITI | M35h | 3.5L | V6 | Downstream Left | Downstream left oxygen sensor required.; Walker Products OE | ||
| 2012 | Nissan | Versa | 1.6L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE | |
| 2012 | Nissan | Versa | 1.6L | L4 | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE |
* 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.