OE Quality
60-Day Returns

Walker 250-23063 Oxygen Sensor - Upstream
Overview of Walker 250-23063 Oxygen Sensor for Mercedes-Benz 300TE
The Walker Products OE 250-23063 oxygen sensor is designed specifically for the Mercedes-Benz 300TE. 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 Mercedes-Benz 300TE
- Threaded mounting type with 18.0 mm thread diameter
- 11.73 inches wiring harness length with 3 wires of 20 gauge
- Radiused polygon female connector for secure connection
- Overall length of 15.28 inches for proper installation
Detailed Product Features and Specifications
This Walker 250-23063 oxygen sensor features a heated sensor element that allows it to reach operating temperature quickly, improving fuel efficiency and reducing emissions. The sensor is designed with a threaded mounting type, featuring an 18.0 mm thread diameter to ensure a secure fit in the exhaust system of the Mercedes-Benz 300TE. The wiring harness length measures 11.73 inches, providing sufficient reach for installation, and includes three 20-gauge wires. The connector is a radiused polygon female type, engineered for a reliable electrical connection and compatibility with the vehicle’s wiring harness. The overall length of the sensor is 15.28 inches, accommodating the specific fitment requirements of the 300TE model.
Walker Products OE Brand Line Information
The Walker Products OE line focuses on delivering original equipment quality parts that meet or exceed OEM specifications. This oxygen sensor from the Walker Products OE series is engineered to provide precise emissions control and durability, matching the performance standards expected by Mercedes-Benz for the 300TE. Using parts from this line helps maintain factory-level reliability and compliance with emissions regulations.
Common Applications and Issues Addressed
- Restores accurate oxygen sensing for proper air-fuel mixture
- Helps resolve rough idling and engine hesitation
- Reduces excessive fuel consumption caused by faulty sensors
- Prevents check engine light related to oxygen sensor faults
- Supports emissions system compliance and reduces exhaust pollutants
Installation Notes and Tips
When installing the Walker 250-23063 oxygen sensor on a Mercedes-Benz 300TE, ensure the threaded mounting hole is clean and free of debris. Use anti-seize compound on the threads if recommended by the vehicle manufacturer to prevent seizing. Connect the radiused polygon female connector securely to the vehicle’s wiring harness, verifying the three-wire configuration matches the original sensor. Proper torque specifications should be followed to avoid damage to the sensor or exhaust components.
Quality Assurance and Warranty
Walker Products OE oxygen sensors are manufactured to meet strict quality standards, ensuring reliable performance and durability. This part number 250-23063 undergoes rigorous testing to comply with emissions control requirements. Warranty coverage details should be confirmed with the product documentation or supplier, as it may vary by region.
| Brand | Walker |
|---|---|
| Part Number | 250-23063 |
| Position | Walker Products OE, Upstream |
| Connector Gender | Female |
| Connector Shape | Radiused Polygon |
| Mounting Type | Threaded |
| Overall Length | 15.28 |
| Sensor Type | Heated |
| Thread Diameter | 18.0 |
| Universal Or Specific Fit | Specific |
| Wire Gauge Measurement | 20 |
| Wire Quantity | 3 |
| Wiring Harness Length | 11.73 |
This part fits 7 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|
| 1993 | Mercedes-Benz | 300TE | 3.0L | L6 | GAS | Upstream | Install upstream oxygen sensor for optimal performance.; Walker Products OE |
| 1992 | Mercedes-Benz | 300TE | 3.0L | L6 | GAS | Upstream | 14.25" Lead; 362mm Plomo; Upstream; Walker Products OE |
| 1992 | Mercedes-Benz | 300TE | 3.0L | L6 | GAS | Upstream | 14.25" Lead; Upstream; Walker Products OE |
| 1991 | Mercedes-Benz | 300TE | 3.0L | L6 | GAS | Upstream | 14.25" Lead; 362mm Plomo; Upstream; Walker Products OE |
| 1991 | Mercedes-Benz | 300TE | 3.0L | L6 | GAS | Upstream | 14.25" Lead; Upstream; Walker Products OE |
| 1990 | Mercedes-Benz | 300TE | 3.0L | L6 | GAS | Upstream | 14.25" Lead; 362mm Plomo; Upstream; Walker Products OE |
| 1990 | Mercedes-Benz | 300TE | 3.0L | L6 | GAS | Upstream | 14.25" Lead; Upstream; 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.