OE Quality
60-Day Returns

Walker 350-34396 Oxygen Sensor - Downstream
Overview of Walker Oxygen Sensor 350-34396 for Buick Regal
The Walker 350-34396 oxygen sensor is designed specifically for Buick Regal models, 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.
- Wiring harness length: 10.35 inches
- Wire gauge measurement: 20 gauge
- Heated sensor type for faster response
- Specific fit for Buick Regal
- Four-wire configuration
- Radiused polygon female connector
- Thread diameter: 18.0 mm
- Overall length: 13.9 inches
- Threaded mounting type
Detailed Product Description
The Walker 350-34396 oxygen sensor is engineered to meet the emission control requirements of Buick Regal vehicles. As a heated sensor, it quickly reaches operating temperature, providing accurate oxygen level readings to the engine control unit. This sensor includes a 10.35-inch wiring harness with 20-gauge wires, arranged in a four-wire setup to support heating and signal transmission. The radiused polygon female connector ensures a secure and reliable electrical connection, while the 18.0 mm threaded mounting allows for straightforward installation in the exhaust system. With an overall length of 13.9 inches, this sensor fits precisely in the designated location for Buick Regal models.
Walker Products Aftermarket Line
This oxygen sensor is part of the Walker Products Aftermarket line, which focuses on providing replacement emission control components that meet or exceed OEM specifications. The product line emphasizes compatibility and durability, offering specific-fit sensors like the 350-34396 to maintain proper vehicle emissions and engine efficiency.
Common Applications and Issues Addressed
- Restores accurate air-fuel mixture readings for Buick Regal engines
- Helps resolve rough idling and poor fuel economy
- Reduces emissions by ensuring proper catalytic converter function
- Prevents check engine light triggers related to oxygen sensor faults
- Improves overall engine performance and drivability
Installation Notes and Tips
When installing the Walker 350-34396 oxygen sensor, ensure the vehicle is cool to avoid burns. Use the correct socket size for the 18.0 mm threaded sensor to prevent damage. Verify the connector's radiused polygon female shape matches the vehicle harness for a secure fit. Avoid twisting or pulling on the wiring harness during installation to maintain wire integrity.
Quality Assurance and Warranty
Walker Products Aftermarket oxygen sensors are manufactured to meet stringent quality standards. While specific warranty details for part number 350-34396 should be confirmed at the point of purchase, Walker typically offers coverage against defects in materials and workmanship to support long-term reliability.
| Brand | Walker |
|---|---|
| Part Number | 350-34396 |
| Position | Walker Products Aftermarket, Downstream |
| Connector Gender | Female |
| Connector Shape | Radiused Polygon |
| Mounting Type | Threaded |
| Overall Length | 13.9 |
| Sensor Type | Heated |
| Thread Diameter | 18.0 |
| Universal Or Specific Fit | Specific |
| Wire Gauge Measurement | 20 |
| Wire Quantity | 4 |
| Wiring Harness Length | 10.35 |
This part fits 1 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|
| 1994 | Buick | Regal | 3.8L | V6 | GAS | Downstream | Downstream oxygen sensor for vehicle installation.; Walker Products Aftermarket |
* 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.