OE Quality
60-Day Returns

Walker 250-24017 Oxygen Sensor - Downstream or Upstream
Overview of Walker 250-24017 Oxygen Sensor for Mitsubishi Vehicles
The Walker 250-24017 oxygen sensor is designed specifically for Mitsubishi Galant and Lancer models. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by monitoring exhaust gases effectively.
- Heated sensor type for faster response times
- Specific fit for Mitsubishi Galant and Lancer
- 19.41-inch wiring harness length for precise installation
- 20 gauge wire measurement with 4 wires for reliable signal transmission
- Radiused polygon male connector for secure connection
- 18.0 mm thread diameter with threaded mounting type
- Overall length of 22.95 inches for proper fitment
Detailed Features and Specifications
This oxygen sensor from Walker Products OE is engineered with a heated sensor element to provide quicker warm-up times, which helps reduce emissions during cold starts. The 19.41-inch wiring harness length and 20 gauge wire ensure durability and consistent electrical performance. Featuring a radiused polygon male connector, the sensor offers a secure and precise connection to the vehicle’s wiring system. The threaded mounting type with an 18.0 mm thread diameter allows for straightforward installation and a tight seal in the exhaust system. The overall length of 22.95 inches is designed to fit the exhaust layout of Mitsubishi Galant and Lancer models accurately.
Walker Products OE Brand Line Information
Walker Products OE focuses on delivering original equipment quality parts that meet or exceed OEM specifications. The 250-24017 oxygen sensor is part of this product line, ensuring compatibility and reliable performance for emission control systems in Mitsubishi vehicles. This line emphasizes precise fitment and durability, making it suitable for maintaining factory-level emissions standards.
Common Applications and Issues Addressed
- Helps maintain proper air-fuel mixture for efficient combustion
- Reduces harmful emissions by providing accurate exhaust gas readings
- Prevents engine performance issues related to faulty oxygen sensors
- Addresses check engine light triggers caused by sensor failure
- Supports smooth engine idling and acceleration in Mitsubishi Galant and Lancer
Installation Notes and Tips
When installing the Walker 250-24017 oxygen sensor, ensure the vehicle is cool to avoid burns. Use the correct tools to remove the old sensor and avoid damaging the wiring harness. The radiused polygon male connector should be securely connected to prevent signal loss. Thread the sensor carefully into the exhaust port to avoid cross-threading. Verify the wiring harness length and connector type match the vehicle’s specifications before installation.
Quality Assurance and Warranty
Walker Products OE oxygen sensors are manufactured to meet strict quality standards for durability and performance. While specific warranty details for part number 250-24017 should be confirmed with the supplier, Walker typically offers coverage against defects in materials and workmanship to ensure long-term reliability in emission control applications.
| Brand | Walker |
| Part Number | 250-24017 |
| Position | Walker Products OE, Upstream |
| Connector Gender | Male |
| Connector Shape | Radiused Polygon |
| Mounting Type | Threaded |
| Overall Length | 22.95 |
| Sensor Type | Heated |
| Thread Diameter | 18.0 |
| Universal Or Specific Fit | Specific |
| Wire Gauge Measurement | 20 |
| Wire Quantity | 4 |
| Wiring Harness Length | 19.41 |
This part fits 27 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2006 | Mitsubishi | Lancer | 2.4L | L4 | GAS | Upstream | Bank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE |
| 2006 | Mitsubishi | Lancer | 2.4L | L4 | GAS | Upstream | Front oxygen sensor compatible with various vehicle models.; Walker Products OE |
| 2005 | Mitsubishi | Lancer | 2.4L | L4 | GAS | Upstream | Bank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE |
| 2005 | Mitsubishi | Lancer | 2.4L | L4 | GAS | Upstream | Front oxygen sensor compatible with various vehicle models.; Walker Products OE |
| 2004 | Mitsubishi | Lancer | 2.4L | L4 | GAS | Upstream | Bank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE |
| 2004 | Mitsubishi | Lancer | 2.4L | L4 | GAS | Upstream | Front oxygen sensor compatible with various vehicle models.; Walker Products OE |
| 1998 | Mitsubishi | Galant | 2.4L | L4 | GAS | Downstream | Downstream oxygen sensor for B1S2 position in California emissions.; Walker Products OE |
| 1998 | Mitsubishi | Galant | 2.4L | L4 | GAS | Downstream | Downstream oxygen sensor for B1S2, not for vehicles in California.; Walker Products OE |
| 1998 | Mitsubishi | Galant | 2.4L | L4 | GAS | Downstream | Downstream oxygen sensor compatible with California-ESV vehicles in bank 1 position 2.; Walker Products OE |
| 1998 | Mitsubishi | Galant | 2.4L | L4 | GAS | Downstream | Downstream Bank 1 Sensor 2 for Non-Calif-ESV vehicles.; Walker Products OE |
| 1998 | Mitsubishi | Galant | 2.4L | L4 | GAS | Downstream | Downstream oxygen sensor for second bank, sensor 1, non-California emissions.; Walker Products OE |
| 1997 | Mitsubishi | Galant | 2.4L | L4 | GAS | Downstream | Downstream oxygen sensor for B1S2 position in California emissions.; Walker Products OE |
| 1997 | Mitsubishi | Galant | 2.4L | L4 | GAS | Downstream | Downstream oxygen sensor for B1S2, not for vehicles in California.; Walker Products OE |
| 1997 | Mitsubishi | Galant | 2.4L | L4 | GAS | Downstream | Downstream oxygen sensor compatible with California-ESV vehicles in bank 1 position 2.; Walker Products OE |
| 1997 | Mitsubishi | Galant | 2.4L | L4 | GAS | Downstream | Downstream Bank 1 Sensor 2 for Non-Calif-ESV vehicles.; Walker Products OE |
| 1997 | Mitsubishi | Galant | 2.4L | L4 | GAS | Downstream | Downstream oxygen sensor for second bank, sensor 1, non-California emissions.; Walker Products OE |
| 1996 | Mitsubishi | Galant | 2.4L | L4 | GAS | Downstream | Downstream oxygen sensor for B1S2 position in California emissions.; Walker Products OE |
| 1996 | Mitsubishi | Galant | 2.4L | L4 | GAS | Downstream | Downstream oxygen sensor for B1S2, not for vehicles in California.; Walker Products OE |
| 1996 | Mitsubishi | Galant | 2.4L | L4 | GAS | Downstream | Downstream oxygen sensor compatible with California-ESV vehicles in bank 1 position 2.; Walker Products OE |
| 1996 | Mitsubishi | Galant | 2.4L | L4 | GAS | Downstream | Downstream Bank 1 Sensor 2 for Non-Calif-ESV vehicles.; Walker Products OE |
| 1996 | Mitsubishi | Galant | 2.4L | L4 | GAS | Downstream | Downstream oxygen sensor for second bank, sensor 1, non-California emissions.; Walker Products OE |
| 1995 | Mitsubishi | Galant | 2.4L | L4 | GAS | Downstream | Downstream oxygen sensor for B1S2, not for vehicles in California.; Walker Products OE |
| 1995 | Mitsubishi | Galant | 2.4L | L4 | GAS | Downstream | Downstream oxygen sensor for B1S2 position in California emissions.; Walker Products OE |
| 1995 | Mitsubishi | Galant | 2.4L | L4 | GAS | Downstream | Downstream Bank 1 Sensor 2 for Non-Calif-ESV vehicles.; Walker Products OE |
| 1995 | Mitsubishi | Galant | 2.4L | L4 | GAS | Downstream | Downstream oxygen sensor compatible with California-ESV vehicles in bank 1 position 2.; Walker Products OE |
| 1995 | Mitsubishi | Galant | 2.4L | L4 | GAS | Downstream | Downstream oxygen sensor for second bank, sensor 1, non-California emissions.; Walker Products OE |
| 1994 | Mitsubishi | Galant | 2.4L | L4 | GAS | 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.