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Walker 350-34644 Oxygen Sensor
Overview of Walker 350-34644 Oxygen Sensor
The Walker 350-34644 oxygen sensor is designed specifically for select Mitsubishi models, including the Diamante, Eclipse, Expo, Expo LRV, Galant, Lancer, and Outlander. This heated oxygen sensor provides accurate emissions monitoring to help maintain engine performance and comply with emission standards.
- Heated oxygen sensor with 4-wire design for precise readings
- Specific fit for Mitsubishi vehicles ensuring proper installation
- Threaded mounting type with 18.0 mm thread diameter
- Radiused polygon male connector for secure electrical connection
- Wiring harness length of 19.21 inches and overall length of 22.76 inches
- Wire gauge measurement of 20 for reliable signal transmission
Detailed Product Description
This Walker oxygen sensor (part number 350-34644) is engineered to meet the exact specifications required by Mitsubishi vehicles such as the Diamante, Eclipse, and Lancer. Featuring a heated sensor type, it quickly reaches operating temperature to provide accurate oxygen level readings in the exhaust stream. The 4-wire configuration supports both the sensor signal and heater circuit, improving response time and durability. The sensor’s threaded mounting type with an 18.0 mm diameter ensures a secure fit in the exhaust manifold or pipe. Additionally, the radiused polygon male connector facilitates a reliable electrical connection, minimizing the risk of signal loss or corrosion.
Walker Products Aftermarket Line
Walker Products Aftermarket offers a range of emission control components designed to meet or exceed OEM standards. This product line focuses on delivering reliable, vehicle-specific parts that support emission system functionality and engine efficiency. The 350-34644 oxygen sensor is part of this line, providing a direct replacement solution for Mitsubishi models requiring precise sensor performance and fitment.
Common Applications and Issues Addressed
- Restores accurate air-fuel mixture readings for optimal engine performance
- Helps resolve check engine light triggers related to oxygen sensor faults
- Reduces emissions by ensuring proper catalytic converter operation
- Improves fuel economy by providing correct sensor data to the ECU
- Prevents rough idling and engine hesitation caused by faulty sensors
Installation Notes and Tips
When installing the Walker 350-34644 oxygen sensor, ensure the vehicle is compatible with this specific part number and fitment. Use proper tools to avoid damaging the threaded sensor or connector. It is recommended to disconnect the battery before installation to prevent electrical shorts. Verify the wiring harness length and connector type match the vehicle’s existing setup for a seamless replacement.
Quality Assurance and Warranty
Walker Products Aftermarket oxygen sensors are manufactured to meet stringent quality standards. While specific warranty details for part number 350-34644 should be confirmed at the point of purchase, Walker typically offers coverage against defects in materials and workmanship. This ensures dependable performance and longevity in emission control applications.
| Brand | Walker |
| Part Number | 350-34644 |
| Position | Walker Products Aftermarket, Downstream |
| Connector Gender | Male |
| Connector Shape | Radiused Polygon |
| Mounting Type | Threaded |
| Overall Length | 22.76 |
| Sensor Type | Heated |
| Thread Diameter | 18.0 |
| Universal Or Specific Fit | Specific |
| Wire Gauge Measurement | 20 |
| Wire Quantity | 4 |
| Wiring Harness Length | 19.21 |
This part fits 99 vehicles. Search below:
| Year | Make | Model | Submodel | Drive Type | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|---|---|
| 2007 | Mitsubishi | Lancer | 2.0L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket | ||
| 2006 | Mitsubishi | Lancer | 2.0L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket | ||
| 2005 | Mitsubishi | Lancer | 2.0L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket | ||
| 2004 | Mitsubishi | Lancer | 2.0L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket | ||
| 2004 | Mitsubishi | Lancer | 2.0L | L4 | GAS | Downstream | To 09/01/03; B1S2; Al 09/01/03; Downstream; Walker Products Aftermarket | ||
| 2004 | Mitsubishi | Lancer | 2.0L | L4 | GAS | Downstream | To 09/01/03; Al 09/01/03; Downstream; B1S2; Walker Products Aftermarket | ||
| 2004 | Mitsubishi | Lancer | 2.0L | L4 | GAS | Downstream | 09/01/03 - downstream oxygen sensor for bank 1 sensor 2.; Walker Products Aftermarket | ||
| 2003 | Mitsubishi | Lancer | 2.0L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket | ||
| 2003 | Mitsubishi | Outlander | AWD | 2.4L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket | |
| 2002 | Mitsubishi | Lancer | 2.0L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket | ||
| 2000 | Mitsubishi | Diamante | 3.5L | V6 | GAS | Upstream Rear | Non California engine, no California engine, upstream position, rear location; Walker Products Aftermarket | ||
| 2000 | Mitsubishi | Diamante | 3.5L | V6 | GAS | Upstream Front | Non-Calif-ESV No Calif-ESV Upstream Front; Walker Products Aftermarket | ||
| 2000 | Mitsubishi | Diamante | 3.5L | V6 | GAS | Downstream Rear | Downstream Rear Oxygen Sensor for Non-Calif-ESV models.; Walker Products Aftermarket | ||
| 2000 | Mitsubishi | Diamante | 3.5L | V6 | GAS | Downstream Front | Non Calif-ESV No Calif-ESV Downstream Front; Walker Products Aftermarket | ||
| 2000 | Mitsubishi | Diamante | 3.5L | V6 | GAS | Upstream Rear | Non Calif-ESV Upstream Rear Oxygen Sensor; Walker Products Aftermarket | ||
| 2000 | Mitsubishi | Diamante | 3.5L | V6 | GAS | Upstream Front | Fits non-California emissions vehicles upstream of catalytic converter.; Walker Products Aftermarket | ||
| 2000 | Mitsubishi | Diamante | 3.5L | V6 | GAS | Downstream Rear | Non Calif-ESV; Downstream; Rear; Walker Products Aftermarket | ||
| 2000 | Mitsubishi | Diamante | 3.5L | V6 | GAS | Downstream Front | Non Calif-ESV; Downstream; Front; Walker Products Aftermarket | ||
| 2000 | Mitsubishi | Eclipse | 3.0L | V6 | GAS | Upstream Rear | Non California engine, no California engine, upstream position, rear location; Walker Products Aftermarket | ||
| 2000 | Mitsubishi | Eclipse | 3.0L | V6 | GAS | Upstream Front | Non-Calif-ESV No Calif-ESV Upstream Front; Walker Products Aftermarket | ||
| 2000 | Mitsubishi | Eclipse | 2.4L | L4 | GAS | Upstream | Non California emissions certified; Bank 1 Sensor 1; Upstream position; Not suitable for California emissionscertified vehicles; Walker Products Aftermarket | ||
| 2000 | Mitsubishi | Eclipse | 2.4L | L4 | GAS | Downstream | Downstream oxygen sensor for B1S2, not for vehicles in California.; Walker Products Aftermarket | ||
| 2000 | Mitsubishi | Eclipse | 2.4L | L4 | GAS | Upstream | For vehicles without California and Federal Emissions - Upstream Bank 1 Sensor 1.; Walker Products Aftermarket | ||
| 2000 | Mitsubishi | Eclipse | 2.4L | L4 | GAS | Downstream | Downstream Bank 1 Sensor 2 for Non-Calif-ESV vehicles.; Walker Products Aftermarket | ||
| 2000 | Mitsubishi | Eclipse | 3.0L | V6 | GAS | Upstream Rear | Non Calif-ESV Upstream Rear Oxygen Sensor; Walker Products Aftermarket | ||
| 2000 | Mitsubishi | Eclipse | 3.0L | V6 | GAS | Upstream Front | Fits non-California emissions vehicles upstream of catalytic converter.; Walker Products Aftermarket | ||
| 2000 | Mitsubishi | Eclipse | 2.4L | L4 | GAS | Upstream | Upstream oxygen sensor for bank 1 sensor 1 incompatible with California-ESV vehicles.; Walker Products Aftermarket | ||
| 2000 | Mitsubishi | Eclipse | 2.4L | L4 | GAS | Downstream | Downstream oxygen sensor for second bank, sensor 1, non-California emissions.; Walker Products Aftermarket | ||
| 2000 | Mitsubishi | Galant | 3.0L | V6 | GAS | Upstream | Non Calif-ESV; No Calif-ESV; Upstream; Walker Products Aftermarket | ||
| 2000 | Mitsubishi | Galant | 3.0L | V6 | GAS | Downstream | Downstream placement for vehicles without California emissions certification.; Walker Products Aftermarket | ||
| 2000 | Mitsubishi | Galant | 2.4L | L4 | GAS | Upstream | Non California emissions certified; Bank 1 Sensor 1; Upstream position; Not suitable for California emissionscertified vehicles; Walker Products Aftermarket | ||
| 2000 | Mitsubishi | Galant | 2.4L | L4 | GAS | Downstream | Downstream oxygen sensor for B1S2, not for vehicles in California.; Walker Products Aftermarket | ||
| 2000 | Mitsubishi | Galant | 2.4L | L4 | GAS | Upstream | For vehicles without California and Federal Emissions - Upstream Bank 1 Sensor 1.; Walker Products Aftermarket | ||
| 2000 | Mitsubishi | Galant | 2.4L | L4 | GAS | Downstream | Downstream Bank 1 Sensor 2 for Non-Calif-ESV vehicles.; Walker Products Aftermarket | ||
| 2000 | Mitsubishi | Galant | 3.0L | V6 | GAS | Upstream | Upstream oxygen sensor for non-California ESV vehicles.; Walker Products Aftermarket | ||
| 2000 | Mitsubishi | Galant | 3.0L | V6 | GAS | Downstream | Downstream Oxygen Sensor compatible with Non-California ESV vehicles.; Walker Products Aftermarket | ||
| 2000 | Mitsubishi | Galant | 2.4L | L4 | GAS | Upstream | Upstream oxygen sensor for bank 1 sensor 1 incompatible with California-ESV vehicles.; Walker Products Aftermarket | ||
| 2000 | Mitsubishi | Galant | 2.4L | L4 | GAS | Downstream | Downstream oxygen sensor for second bank, sensor 1, non-California emissions.; Walker Products Aftermarket | ||
| 1999 | Mitsubishi | Diamante | 3.5L | V6 | GAS | Upstream Rear | Non California engine, no California engine, upstream position, rear location; Walker Products Aftermarket | ||
| 1999 | Mitsubishi | Diamante | 3.5L | V6 | GAS | Upstream Front | Non-Calif-ESV No Calif-ESV Upstream Front; Walker Products Aftermarket | ||
| 1999 | Mitsubishi | Diamante | 3.5L | V6 | GAS | Downstream Rear | Downstream Rear Oxygen Sensor for Non-Calif-ESV models.; Walker Products Aftermarket | ||
| 1999 | Mitsubishi | Diamante | 3.5L | V6 | GAS | Downstream Front | Non Calif-ESV No Calif-ESV Downstream Front; Walker Products Aftermarket | ||
| 1999 | Mitsubishi | Diamante | 3.5L | V6 | GAS | Upstream Rear | Non Calif-ESV Upstream Rear Oxygen Sensor; Walker Products Aftermarket | ||
| 1999 | Mitsubishi | Diamante | 3.5L | V6 | GAS | Upstream Front | Fits non-California emissions vehicles upstream of catalytic converter.; Walker Products Aftermarket | ||
| 1999 | Mitsubishi | Diamante | 3.5L | V6 | GAS | Downstream Rear | Non Calif-ESV; Downstream; Rear; Walker Products Aftermarket | ||
| 1999 | Mitsubishi | Diamante | 3.5L | V6 | GAS | Downstream Front | Non Calif-ESV; Downstream; Front; Walker Products Aftermarket | ||
| 1999 | Mitsubishi | Eclipse | Spyder GST | FWD | 2.0L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
| 1999 | Mitsubishi | Eclipse | GST | FWD | 2.0L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket |
| 1999 | Mitsubishi | Eclipse | 2.4L | L4 | GAS | Downstream | Downstream oxygen sensor for B1S2, not for vehicles in California.; Walker Products Aftermarket | ||
| 1999 | Mitsubishi | Eclipse | 2.4L | L4 | GAS | Downstream | Downstream Bank 1 Sensor 2 for Non-Calif-ESV vehicles.; Walker Products Aftermarket | ||
| 1999 | Mitsubishi | Eclipse | 2.4L | L4 | GAS | Downstream | Downstream oxygen sensor for second bank, sensor 1, non-California emissions.; Walker Products Aftermarket | ||
| 1999 | Mitsubishi | Galant | 3.0L | V6 | GAS | Upstream | Non Calif-ESV; No Calif-ESV; Upstream; Walker Products Aftermarket | ||
| 1999 | Mitsubishi | Galant | 3.0L | V6 | GAS | Downstream | Downstream placement for vehicles without California emissions certification.; Walker Products Aftermarket | ||
| 1999 | Mitsubishi | Galant | 2.4L | L4 | GAS | Upstream | Non California emissions certified; Bank 1 Sensor 1; Upstream position; Not suitable for California emissionscertified vehicles; Walker Products Aftermarket | ||
| 1999 | Mitsubishi | Galant | 2.4L | L4 | GAS | Downstream | Downstream oxygen sensor for B1S2, not for vehicles in California.; Walker Products Aftermarket | ||
| 1999 | Mitsubishi | Galant | 2.4L | L4 | GAS | Upstream | For vehicles without California and Federal Emissions - Upstream Bank 1 Sensor 1.; Walker Products Aftermarket | ||
| 1999 | Mitsubishi | Galant | 2.4L | L4 | GAS | Downstream | Downstream Bank 1 Sensor 2 for Non-Calif-ESV vehicles.; Walker Products Aftermarket | ||
| 1999 | Mitsubishi | Galant | 3.0L | V6 | GAS | Upstream | Upstream oxygen sensor for non-California ESV vehicles.; Walker Products Aftermarket | ||
| 1999 | Mitsubishi | Galant | 3.0L | V6 | GAS | Downstream | Downstream Oxygen Sensor compatible with Non-California ESV vehicles.; Walker Products Aftermarket | ||
| 1999 | Mitsubishi | Galant | 2.4L | L4 | GAS | Upstream | Upstream oxygen sensor for bank 1 sensor 1 incompatible with California-ESV vehicles.; Walker Products Aftermarket | ||
| 1999 | Mitsubishi | Galant | 2.4L | L4 | GAS | Downstream | Downstream oxygen sensor for second bank, sensor 1, non-California emissions.; Walker Products Aftermarket | ||
| 1998 | Mitsubishi | Diamante | 3.5L | V6 | GAS | Upstream Rear | Upstream oxygen sensor for rear exhaust system.; Walker Products Aftermarket | ||
| 1998 | Mitsubishi | Diamante | 3.5L | V6 | GAS | Upstream Front | Front upstream oxygen sensor needed for proper functionality near exhaust manifold.; Walker Products Aftermarket | ||
| 1998 | Mitsubishi | Diamante | 3.5L | V6 | GAS | Downstream Rear | Rear downstream oxygen sensor must be installed in correct position.; Walker Products Aftermarket | ||
| 1998 | Mitsubishi | Diamante | 3.5L | V6 | GAS | Downstream Front | Downstream front oxygen sensor required.; Walker Products Aftermarket | ||
| 1998 | Mitsubishi | Eclipse | 2.4L | L4 | GAS | Downstream | Downstream oxygen sensor for B1S2, not for vehicles in California.; Walker Products Aftermarket | ||
| 1998 | Mitsubishi | Eclipse | Spyder GST | 2.0L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket | |
| 1998 | Mitsubishi | Eclipse | GST | 2.0L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket | |
| 1998 | Mitsubishi | Eclipse | 2.4L | L4 | GAS | Downstream | Downstream Bank 1 Sensor 2 for Non-Calif-ESV vehicles.; Walker Products Aftermarket | ||
| 1998 | Mitsubishi | Eclipse | 2.4L | L4 | GAS | Downstream | Downstream oxygen sensor for second bank, sensor 1, non-California emissions.; Walker Products Aftermarket | ||
| 1997 | Mitsubishi | Diamante | 3.5L | V6 | GAS | Upstream Rear | Upstream oxygen sensor for rear exhaust system.; Walker Products Aftermarket | ||
| 1997 | Mitsubishi | Diamante | 3.5L | V6 | GAS | Upstream Front | Front upstream oxygen sensor needed for proper functionality near exhaust manifold.; Walker Products Aftermarket | ||
| 1997 | Mitsubishi | Diamante | 3.5L | V6 | GAS | Downstream Rear | Rear downstream oxygen sensor must be installed in correct position.; Walker Products Aftermarket | ||
| 1997 | Mitsubishi | Diamante | 3.5L | V6 | GAS | Downstream Front | Downstream front oxygen sensor required.; Walker Products Aftermarket | ||
| 1997 | Mitsubishi | Eclipse | 2.4L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket | ||
| 1997 | Mitsubishi | Eclipse | GST | 2.0L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket | |
| 1996 | Mitsubishi | Eclipse | 2.4L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket | ||
| 1996 | Mitsubishi | Eclipse | GST | 2.0L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket | |
| 1995 | Mitsubishi | Eclipse | GST | 2.0L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket | |
| 1995 | Mitsubishi | Expo | FWD | 2.4L | L4 | GAS | Downstream | Downstream oxygen sensor for B1S2, not for vehicles in California.; Walker Products Aftermarket | |
| 1995 | Mitsubishi | Expo | FWD | 2.4L | L4 | GAS | Downstream | Calif-ESV; B1S3; Downstream; Walker Products Aftermarket | |
| 1995 | Mitsubishi | Expo | AWD | 2.4L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket | |
| 1995 | Mitsubishi | Expo | FWD | 2.4L | L4 | GAS | Downstream | Downstream Bank 1 Sensor 2 for Non-Calif-ESV vehicles.; Walker Products Aftermarket | |
| 1995 | Mitsubishi | Expo | FWD | 2.4L | L4 | GAS | Downstream | Calif-ESV; Downstream; B1S3; Walker Products Aftermarket | |
| 1995 | Mitsubishi | Expo | FWD | 2.4L | L4 | GAS | Downstream | Downstream oxygen sensor for second bank, sensor 1, non-California emissions.; Walker Products Aftermarket | |
| 1994 | Mitsubishi | Expo | FWD | 2.4L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket | |
| 1994 | Mitsubishi | Expo | AWD | 2.4L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket | |
| 1994 | Mitsubishi | Expo LRV | 2.4L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket | ||
| 1994 | Mitsubishi | Expo LRV | 1.8L | L4 | GAS | Downstream | Fits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket | ||
| 1993 | Mitsubishi | Expo | FWD | 2.4L | L4 | GAS | Downstream | Downstream oxygen sensor for B1S2 position in California emissions.; Walker Products Aftermarket | |
| 1993 | Mitsubishi | Expo | AWD | 2.4L | L4 | GAS | Downstream | Downstream oxygen sensor for B1S2 position in California emissions.; Walker Products Aftermarket | |
| 1993 | Mitsubishi | Expo | FWD | 2.4L | L4 | GAS | Downstream | Downstream oxygen sensor compatible with California-ESV vehicles in bank 1 position 2.; Walker Products Aftermarket | |
| 1993 | Mitsubishi | Expo | AWD | 2.4L | L4 | GAS | Downstream | Downstream oxygen sensor compatible with California-ESV vehicles in bank 1 position 2.; Walker Products Aftermarket | |
| 1993 | Mitsubishi | Expo LRV | FWD | 2.4L | L4 | GAS | Downstream | Downstream oxygen sensor for B1S2 position in California emissions.; Walker Products Aftermarket | |
| 1993 | Mitsubishi | Expo LRV | AWD | 2.4L | L4 | GAS | Downstream | Downstream oxygen sensor for B1S2 position in California emissions.; Walker Products Aftermarket | |
| 1993 | Mitsubishi | Expo LRV | 1.8L | L4 | GAS | Downstream | Downstream oxygen sensor for B1S2 position in California emissions.; Walker Products Aftermarket | ||
| 1993 | Mitsubishi | Expo LRV | FWD | 2.4L | L4 | GAS | Downstream | Downstream oxygen sensor compatible with California-ESV vehicles in bank 1 position 2.; Walker Products Aftermarket | |
| 1993 | Mitsubishi | Expo LRV | AWD | 2.4L | L4 | GAS | Downstream | Downstream oxygen sensor compatible with California-ESV vehicles in bank 1 position 2.; Walker Products Aftermarket | |
| 1993 | Mitsubishi | Expo LRV | 1.8L | L4 | GAS | Downstream | Downstream oxygen sensor compatible with California-ESV vehicles in bank 1 position 2.; 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.