OE Quality
60-Day Returns

Walker 350-34506 Oxygen Sensor - Downstream
Overview of Walker 350-34506 Oxygen Sensor
The Walker 350-34506 oxygen sensor is designed specifically for select Chevrolet, Pontiac, and Saturn 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 Chevrolet Cobalt, Pontiac G5, Saturn Ion, and other models
- 27.48-inch wiring harness length with 4 wires of 20 gauge
- Threaded mounting type with 18.0 mm thread diameter
- Radiused polygon male connector for secure connection
- Overall length of 31.02 inches for proper installation
Detailed Product Description
This Walker Products Aftermarket oxygen sensor (part number 350-34506) is engineered to meet the exact specifications required by various Chevrolet, Pontiac, and Saturn vehicles. The heated sensor design allows it to reach operating temperature quickly, improving fuel efficiency and reducing emissions. The 4-wire configuration with 20 gauge wiring ensures reliable signal transmission, while the 27.48-inch wiring harness length provides sufficient reach for installation in the exhaust system. The sensor features a threaded mounting type with an 18.0 mm thread diameter, compatible with the original equipment mounting points. The radiused polygon male connector guarantees a secure and precise fit, minimizing the risk of connection issues.
Compatible Vehicles and Applications
This oxygen sensor is compatible with the following makes and models:
- Chevrolet Cobalt, HHR
- Pontiac G4, G5, Pursuit, SC1, SC2
- Saturn Ion, L100, L200, L300, LW200, SL, SL1, SL2, SW2, Vue
It is designed for specific fitment, ensuring proper function and ease of installation in these vehicles.
Common Issues Addressed by This Oxygen Sensor
- Incorrect air-fuel mixture readings causing poor fuel economy
- Check engine light triggered by faulty oxygen sensor signals
- Increased emissions due to sensor malfunction
- Engine performance problems such as rough idling or hesitation
- Failed emissions tests related to sensor failure
Installation Notes and Tips
When installing the Walker 350-34506 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. Verify the connector shape and gender match the vehicleβs harness before installation. Thread the sensor carefully to avoid cross-threading and tighten to manufacturer torque specifications. After installation, clear any diagnostic trouble codes and verify sensor operation with a scan tool.
Quality Assurance and Warranty
Walker Products Aftermarket parts are manufactured to meet or exceed OEM standards. The 350-34506 oxygen sensor undergoes rigorous testing to ensure durability and reliable performance in emission control systems. While specific warranty details are not provided here, Walker typically offers coverage against defects in materials and workmanship. Consult product documentation or the manufacturer for exact warranty terms.
| Brand | Walker |
|---|---|
| Part Number | 350-34506 |
| Position | Walker Products Aftermarket, Downstream |
| Connector Gender | Male |
| Connector Shape | Radiused Polygon |
| Mounting Type | Threaded |
| Overall Length | 31.02 |
| Sensor Type | Heated |
| Thread Diameter | 18.0 |
| Universal Or Specific Fit | Specific |
| Wire Gauge Measurement | 20 |
| Wire Quantity | 4 |
| Wiring Harness Length | 27.48 |
This part fits 72 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2011 | Chevrolet | HHR | 2.4L | L4 | FLEX | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
| 2011 | Chevrolet | HHR | 2.2L | L4 | FLEX | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
| 2010 | Chevrolet | Cobalt | 2.2L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
| 2010 | Chevrolet | HHR | 2.4L | L4 | FLEX | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
| 2010 | Chevrolet | HHR | 2.2L | L4 | FLEX | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
| 2010 | Pontiac | G5 | 2.2L | L4 | Downstream | OE Replacement | |
| 2009 | Chevrolet | Cobalt | 2.2L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
| 2009 | Chevrolet | HHR | 2.4L | L4 | FLEX | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
| 2009 | Chevrolet | HHR | 2.2L | L4 | FLEX | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
| 2009 | Pontiac | G5 | 2.2L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
| 2008 | Chevrolet | Cobalt | 2.4L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
| 2008 | Chevrolet | Cobalt | 2.2L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
| 2008 | Chevrolet | HHR | 2.4L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
| 2008 | Chevrolet | HHR | 2.2L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
| 2008 | Pontiac | G5 | 2.4L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
| 2008 | Pontiac | G5 | 2.2L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
| 2007 | Chevrolet | Cobalt | 2.4L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
| 2007 | Chevrolet | Cobalt | 2.2L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
| 2007 | Chevrolet | Cobalt | 2.0L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
| 2007 | Chevrolet | HHR | 2.4L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
| 2007 | Chevrolet | HHR | 2.2L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
| 2007 | Pontiac | G5 | 2.4L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
| 2007 | Pontiac | G5 | 2.2L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
| 2007 | Saturn | Ion | 2.4L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
| 2007 | Saturn | Ion | 2.2L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
| 2007 | Saturn | Ion | 2.0L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
| 2007 | Saturn | Vue | 2.4L | L4 | ELECTRIC/GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
| 2007 | Saturn | Vue | 2.2L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
| 2006 | Chevrolet | Cobalt | 2.4L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
| 2006 | Chevrolet | Cobalt | 2.2L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
| 2006 | Chevrolet | Cobalt | 2.0L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
| 2006 | Chevrolet | HHR | 2.4L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
| 2006 | Chevrolet | HHR | 2.2L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
| 2006 | Pontiac | G4 | 2.2L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
| 2006 | Pontiac | Pursuit | 2.4L | L4 | Downstream | OE Replacement | |
| 2006 | Saturn | Ion | 2.4L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
| 2006 | Saturn | Ion | 2.2L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
| 2006 | Saturn | Ion | 2.0L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
| 2006 | Saturn | Vue | 2.2L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
| 2005 | Chevrolet | Cobalt | 2.2L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
| 2005 | Chevrolet | Cobalt | 2.0L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
| 2005 | Pontiac | G4 | 2.2L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
| 2005 | Pontiac | Pursuit | 2.2L | L4 | Downstream | OE Replacement | |
| 2005 | Saturn | Ion | 2.2L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
| 2005 | Saturn | Ion | 2.0L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
| 2005 | Saturn | Vue | 2.2L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
| 2004 | Saturn | L300 | 2.2L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
| 2004 | Saturn | Vue | 2.2L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
| 2003 | Saturn | L200 | 2.2L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
| 2003 | Saturn | LW200 | 2.2L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
| 2003 | Saturn | Vue | 2.2L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
| 2002 | Saturn | L100 | 2.2L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
| 2002 | Saturn | L200 | 2.2L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
| 2002 | Saturn | LW200 | 2.2L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
| 2002 | Saturn | SC1 | 1.9L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
| 2002 | Saturn | SC2 | 1.9L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
| 2002 | Saturn | SL | 1.9L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
| 2002 | Saturn | SL1 | 1.9L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
| 2002 | Saturn | SL2 | 1.9L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
| 2002 | Saturn | Vue | 2.2L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
| 2001 | Saturn | SC1 | 1.9L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
| 2001 | Saturn | SC2 | 1.9L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
| 2001 | Saturn | SL | 1.9L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
| 2001 | Saturn | SL1 | 1.9L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
| 2001 | Saturn | SL2 | 1.9L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
| 2001 | Saturn | SW2 | 1.9L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
| 2000 | Saturn | SC1 | 1.9L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
| 2000 | Saturn | SC2 | 1.9L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
| 2000 | Saturn | SL | 1.9L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
| 2000 | Saturn | SL1 | 1.9L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
| 2000 | Saturn | SL2 | 1.9L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
| 2000 | Saturn | SW2 | 1.9L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; 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.