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Walker 350-34033 Oxygen Sensor - Upstream or Upstream Right
Overview of Walker Oxygen Sensor 350-34033
The Walker 350-34033 oxygen sensor is designed specifically for Mitsubishi vehicles, including the Lancer, Montero, and Montero Sport models. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by providing precise air-fuel mixture data to the vehicle's engine control unit.
- Heated oxygen sensor with 4-wire design for reliable operation
- Specific fit for Mitsubishi Lancer, Montero, and Montero Sport
- 26.1-inch wiring harness length for flexible installation
- Threaded mounting type with 18.0 mm thread diameter
- Radiused polygon male connector for secure electrical connection
- Wire gauge measurement of 20 for durability and signal integrity
- Overall length of 29.65 inches to accommodate factory fitment
Detailed Product Description
This Walker Products Aftermarket oxygen sensor (part number 350-34033) is engineered to meet the exact specifications required by Mitsubishi vehicles such as the Lancer, Montero, and Montero Sport. Featuring a heated sensor type, it quickly reaches operating temperature to provide accurate oxygen level readings, which are critical for maintaining efficient combustion and reducing emissions. The sensor includes a 4-wire configuration, which supports both the sensor signal and the heating element, ensuring consistent performance under various driving conditions.
The wiring harness length of 26.1 inches offers sufficient reach for straightforward installation without the need for extensions. The connector is a radiused polygon shape with a male gender, designed to match the factory wiring harness for a secure and reliable connection. The threaded mounting type with an 18.0 mm diameter allows for direct replacement without modification, maintaining the integrity of the exhaust system.
Common Applications and Issues Addressed
- Restores accurate air-fuel ratio readings for improved fuel efficiency
- Helps resolve engine misfires related to faulty oxygen sensors
- Reduces emissions by ensuring proper catalytic converter function
- Eliminates check engine light codes related to oxygen sensor failure
- Improves overall engine performance and drivability
Installation Notes and Tips
- Ensure the vehicle is cool before removing the old sensor to avoid burns
- Use an oxygen sensor socket or appropriate tool for removal and installation
- Apply anti-seize compound to the sensor threads if not pre-coated
- Verify connector compatibility with the factory harness before installation
- Follow vehicle manufacturer torque specifications when tightening the sensor
Quality Assurance and Warranty
Walker Products Aftermarket parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 350-34033 oxygen sensor undergoes rigorous testing to ensure durability and reliable performance in emission control systems. While specific warranty details may vary, Walker typically offers coverage against defects in materials and workmanship to provide confidence in the product's longevity and effectiveness.
| Brand | Walker |
|---|---|
| Part Number | 350-34033 |
| Position | Walker Products Aftermarket, Upstream |
| Connector Gender | Male |
| Connector Shape | Radiused Polygon |
| Mounting Type | Threaded |
| Overall Length | 29.65 |
| Sensor Type | Heated |
| Thread Diameter | 18.0 |
| Universal Or Specific Fit | Specific |
| Wire Gauge Measurement | 20 |
| Wire Quantity | 4 |
| Wiring Harness Length | 26.1 |
This part fits 44 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2019 | Mitsubishi | Montero | 3.8L | V6 | Upstream Right | OE Replacement | |
| 2018 | Mitsubishi | Montero | 3.8L | V6 | Upstream Right | OE Replacement | |
| 2017 | Mitsubishi | Montero | 3.8L | V6 | Upstream Right | OE Replacement | |
| 2015 | Mitsubishi | Montero | 3.8L | V6 | Upstream Right | OE Replacement | |
| 2014 | Mitsubishi | Montero | 3.8L | V6 | Upstream Right | OE Replacement | |
| 2013 | Mitsubishi | Montero | 3.8L | V6 | Upstream Right | OE Replacement | |
| 2012 | Mitsubishi | Montero | 3.8L | V6 | Upstream Right | OE Replacement | |
| 2011 | Mitsubishi | Montero | 3.8L | V6 | Upstream Right | OE Replacement | |
| 2010 | Mitsubishi | Montero | 3.8L | V6 | Upstream Right | OE Replacement | |
| 2009 | Mitsubishi | Montero | 3.8L | V6 | Upstream Right | OE Replacement | |
| 2008 | Mitsubishi | Montero | 3.8L | V6 | Upstream Right | From 09/01/2007; OE Replacement | |
| 2008 | Mitsubishi | Montero Sport | 3.5L | V6 | Upstream Right | OE Replacement | |
| 2007 | Mitsubishi | Montero Sport | 3.5L | V6 | Upstream Right | OE Replacement | |
| 2006 | Mitsubishi | Lancer | 2.0L | L4 | GAS | Upstream | Bank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket |
| 2006 | Mitsubishi | Lancer | 2.0L | L4 | GAS | Upstream | Front oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket |
| 2006 | Mitsubishi | Montero | 3.8L | V6 | GAS | Upstream Right | Install upstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2006 | Mitsubishi | Montero Sport | 3.5L | V6 | Upstream Right | OE Replacement | |
| 2005 | Mitsubishi | Lancer | 2.0L | L4 | GAS | Upstream | Bank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket |
| 2005 | Mitsubishi | Lancer | 2.0L | L4 | GAS | Upstream | Front oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket |
| 2005 | Mitsubishi | Montero | 3.8L | V6 | GAS | Upstream Right | Install upstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2005 | Mitsubishi | Montero Sport | 3.5L | V6 | Upstream Right | OE Replacement | |
| 2004 | Mitsubishi | Lancer | 2.0L | L4 | GAS | Upstream | To 09/01/03; B1S1; Al 09/01/03; Upstream; Walker Products Aftermarket |
| 2004 | Mitsubishi | Lancer | 2.0L | L4 | GAS | Upstream | From 09/02/03; B1S1; Del 02/09/03; Upstream; Walker Products Aftermarket |
| 2004 | Mitsubishi | Lancer | 2.0L | L4 | GAS | Upstream | To 09/01/03; Al 09/01/03; Upstream; B1S1; Walker Products Aftermarket |
| 2004 | Mitsubishi | Lancer | 2.0L | L4 | GAS | Upstream | From 09/02/03; Del 02/09/03; Upstream; B1S1; Walker Products Aftermarket |
| 2004 | Mitsubishi | Lancer | 2.0L | L4 | GAS | Upstream | To 09/01/03; B1S1; Upstream; Walker Products Aftermarket |
| 2004 | Mitsubishi | Lancer | 2.0L | L4 | GAS | Upstream | From 09/02/03; B1S1; Upstream; Walker Products Aftermarket |
| 2004 | Mitsubishi | Montero | 3.8L | V6 | GAS | Upstream Right | Install upstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2004 | Mitsubishi | Montero Sport | 3.5L | V6 | GAS | Upstream Right | Install upstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2003 | Mitsubishi | Lancer | 2.0L | L4 | GAS | Upstream | Bank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket |
| 2003 | Mitsubishi | Lancer | 2.0L | L4 | GAS | Upstream | Front oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket |
| 2003 | Mitsubishi | Montero | 3.8L | V6 | GAS | Upstream Right | Install upstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2003 | Mitsubishi | Montero Sport | 3.5L | V6 | GAS | Upstream Right | Install upstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2003 | Mitsubishi | Montero Sport | 3.0L | V6 | GAS | Upstream Right | Install upstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2002 | Mitsubishi | Montero | 3.5L | V6 | GAS | Upstream Right | Install upstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2002 | Mitsubishi | Montero Sport | 3.5L | V6 | GAS | Upstream Right | Install upstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2002 | Mitsubishi | Montero Sport | 3.0L | V6 | GAS | Upstream Right | Install upstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2001 | Mitsubishi | Montero | 3.5L | V6 | GAS | Upstream Right | Install upstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2001 | Mitsubishi | Montero Sport | 3.5L | V6 | GAS | Upstream Right | Install upstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2001 | Mitsubishi | Montero Sport | 3.0L | V6 | GAS | Upstream Right | Install upstream oxygen sensor on the right side.; Walker Products Aftermarket |
| 2000 | Mitsubishi | Montero Sport | 3.5L | V6 | GAS | Upstream Right | California emissions; upstream right position; Walker Products Aftermarket |
| 2000 | Mitsubishi | Montero Sport | 3.0L | V6 | GAS | Upstream Right | California emissions; upstream right position; Walker Products Aftermarket |
| 1999 | Mitsubishi | Montero Sport | 3.5L | V6 | GAS | Upstream Right | California emissions; upstream right position; Walker Products Aftermarket |
| 1999 | Mitsubishi | Montero Sport | 3.0L | V6 | GAS | Upstream Right | California emissions; upstream right position; 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.