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Walker 250-24025 Oxygen Sensor - Upstream
Overview of Walker 250-24025 Oxygen Sensor for BMW 318is
The Walker 250-24025 oxygen sensor is designed specifically for the BMW 318is, ensuring precise emission control and optimal engine performance. This heated oxygen sensor features a threaded mounting type and a radiused polygon female connector for secure installation.
- Heated oxygen sensor for accurate emissions monitoring
- Specific fit for BMW 318is models
- 30.04-inch wiring harness length for flexible placement
- 20 gauge wire measurement with 4 wires for reliable signal transmission
- Threaded mounting with 18.0 mm thread diameter
- Radiused polygon female connector for secure connection
- Overall length of 33.58 inches for proper fitment
Detailed Product Description
The Walker 250-24025 oxygen sensor is engineered to meet the exact specifications of the BMW 318is, providing accurate feedback to the engine control unit (ECU) for efficient fuel management and reduced emissions. This heated sensor type ensures faster warm-up times, improving performance during cold starts. The 4-wire design includes a dedicated heater circuit, enhancing sensor responsiveness and durability. With a wiring harness length of 30.04 inches and an overall length of 33.58 inches, this sensor offers the necessary reach and flexibility for proper installation in the BMW 318is exhaust system. The radiused polygon female connector and 18.0 mm threaded mounting provide a secure and reliable fit, minimizing the risk of connection issues.
Walker Products OE Brand Line
Walker Products OE is a product line focused on delivering original equipment quality parts that meet or exceed OEM specifications. The 250-24025 oxygen sensor from this line is designed to provide consistent performance and durability, making it a suitable replacement part for maintaining the emission control system of the BMW 318is. This line emphasizes precise fitment and reliable operation, aligning with the standards expected from factory-installed components.
Common Applications and Issues Addressed
- Restores accurate oxygen sensing for proper air-fuel mixture control
- Resolves engine performance issues related to faulty oxygen sensors
- Helps reduce emissions and pass vehicle emissions testing
- Eliminates rough idling and poor fuel economy caused by sensor failure
- Prevents check engine light triggers related to oxygen sensor faults
Installation Notes and Tips
When installing the Walker 250-24025 oxygen sensor on a BMW 318is, ensure the threaded mounting is tightened to manufacturer torque specifications to avoid exhaust leaks. Verify the connector orientation matches the radiused polygon female design for a secure electrical connection. It is recommended to inspect the wiring harness for any damage and replace if necessary to maintain signal integrity. Allow the sensor to reach operating temperature for accurate readings after installation.
Quality Assurance and Warranty
Walker Products OE oxygen sensors are manufactured to meet stringent quality standards, ensuring reliable operation and longevity. The 250-24025 part number undergoes rigorous testing to comply with emission control requirements. Warranty coverage details should be confirmed with the distributor or retailer, as they may vary by region.
| Brand | Walker |
|---|---|
| Part Number | 250-24025 |
| Position | Walker Products OE, Upstream |
| Connector Gender | Female |
| Connector Shape | Radiused Polygon |
| Mounting Type | Threaded |
| Overall Length | 33.58 |
| Sensor Type | Heated |
| Thread Diameter | 18.0 |
| Universal Or Specific Fit | Specific |
| Wire Gauge Measurement | 20 |
| Wire Quantity | 4 |
| Wiring Harness Length | 30.04 |
This part fits 2 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|
| 1991 | BMW | 318is | 1.8L | L4 | GAS | Upstream | Bank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE |
| 1991 | BMW | 318is | 1.8L | L4 | GAS | Upstream | Front oxygen sensor compatible with various 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.