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Walker 350-34451 Oxygen Sensor - Downstream Front or Downstream Rear
Overview of Walker 350-34451 Oxygen Sensor
The Walker 350-34451 oxygen sensor is designed specifically for Acura and Honda vehicles, including the Accord and MDX 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 Acura Accord and Honda MDX
- 23.15 inches wiring harness length for precise installation
- 22 gauge wire measurement with 4 wires for reliable signal transmission
- Radiused polygon male connector for secure connection
- Threaded mounting type with 18.0 mm thread diameter
- Overall length of 26.69 inches for proper fitment
Walker Products Aftermarket Line Details
This oxygen sensor is part of the Walker Products Aftermarket line, which focuses on providing replacement emission control components engineered to meet or exceed OEM specifications. The line emphasizes compatibility and durability, ensuring that parts like the 350-34451 oxygen sensor maintain vehicle emissions compliance and engine efficiency for Acura and Honda models.
Product Description and Attributes
The Walker 350-34451 oxygen sensor features a heated sensor element that allows it to reach operating temperature quickly, improving fuel efficiency and reducing emissions. The sensor includes a 23.15-inch wiring harness with 22 gauge wires and four wires total, which supports accurate data transmission to the vehicle’s engine control unit. Its radiused polygon male connector ensures a secure and precise fit, while the threaded mounting type with an 18.0 mm diameter allows for straightforward installation. The overall length of 26.69 inches accommodates the specific routing requirements of Acura Accord and Honda MDX exhaust systems.
Common Applications and Issues Addressed
- Helps maintain proper air-fuel mixture for efficient combustion
- Reduces engine misfires and rough idling
- Prevents increased emissions and failed emissions tests
- Improves fuel economy by providing accurate oxygen level readings
- Resolves check engine light triggers related to oxygen sensor faults
Installation Notes and Tips
When installing the Walker 350-34451 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 radiused polygon male connector aligns properly with the vehicle harness to ensure a secure connection. Follow torque specifications recommended by the vehicle manufacturer to avoid sensor or exhaust system damage.
Quality Assurance and Warranty
Walker Products Aftermarket parts, including the 350-34451 oxygen sensor, are manufactured to meet stringent quality standards. While specific warranty details may vary, Walker typically offers coverage against defects in materials and workmanship to support long-term reliability and performance in Acura and Honda vehicles.
| Brand | Walker |
| Part Number | 350-34451 |
| Position | Walker Products Aftermarket, Downstream Rear |
| Connector Gender | Male |
| Connector Shape | Radiused Polygon |
| Mounting Type | Threaded |
| Overall Length | 26.69 |
| Sensor Type | Heated |
| Thread Diameter | 18.0 |
| Universal Or Specific Fit | Specific |
| Wire Gauge Measurement | 22 |
| Wire Quantity | 4 |
| Wiring Harness Length | 23.15 |
This part fits 19 vehicles. Search below:
| Year | Make | Model | Submodel | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|---|
| 2020 | Acura | MDX | Sport Hybrid | 3.0L | V6 | ELECTRIC/GAS | Downstream Rear | B1S2; Downstream; Rear; Walker Products Aftermarket |
| 2020 | Acura | MDX | Sport Hybrid | 3.0L | V6 | ELECTRIC/GAS | Downstream Rear | Downstream rear oxygen sensor indicating Bank 1 Sensor 2 position; Walker Products Aftermarket |
| 2019 | Acura | MDX | Sport Hybrid | 3.0L | V6 | ELECTRIC/GAS | Downstream Rear | B1S2; Downstream; Rear; Walker Products Aftermarket |
| 2019 | Acura | MDX | Sport Hybrid | 3.0L | V6 | ELECTRIC/GAS | Downstream Rear | Downstream rear oxygen sensor indicating Bank 1 Sensor 2 position; Walker Products Aftermarket |
| 2018 | Acura | MDX | Sport Hybrid | 3.0L | V6 | ELECTRIC/GAS | Downstream Rear | B1S2; Downstream; Rear; Walker Products Aftermarket |
| 2018 | Acura | MDX | Sport Hybrid | 3.0L | V6 | ELECTRIC/GAS | Downstream Rear | Downstream rear oxygen sensor indicating Bank 1 Sensor 2 position; Walker Products Aftermarket |
| 2017 | Acura | MDX | Sport Hybrid | 3.0L | V6 | ELECTRIC/GAS | Downstream Rear | B1S2; Downstream; Rear; Walker Products Aftermarket |
| 2017 | Acura | MDX | Sport Hybrid | 3.0L | V6 | ELECTRIC/GAS | Downstream Rear | Downstream rear oxygen sensor indicating Bank 1 Sensor 2 position; Walker Products Aftermarket |
| 2012 | Honda | Accord | 3.5L | V6 | GAS | Downstream Front | Downstream front oxygen sensor required.; Walker Products Aftermarket | |
| 2011 | Honda | Accord | 3.5L | V6 | GAS | Downstream Front | Downstream front oxygen sensor required.; Walker Products Aftermarket | |
| 2010 | Honda | Accord | 3.5L | V6 | GAS | Downstream Front | Downstream front oxygen sensor required.; Walker Products Aftermarket | |
| 2009 | Honda | Accord | 3.5L | V6 | GAS | Downstream Rear | Downstream Rear Oxygen Sensor for Non-Calif-ESV models.; Walker Products Aftermarket | |
| 2009 | Honda | Accord | 3.5L | V6 | GAS | Downstream Front | Non Calif-ESV No Calif-ESV Downstream Front; Walker Products Aftermarket | |
| 2009 | Honda | Accord | 3.5L | V6 | GAS | Downstream Rear | Non Calif-ESV; Downstream; Rear; Walker Products Aftermarket | |
| 2009 | Honda | Accord | 3.5L | V6 | GAS | Downstream Front | Non Calif-ESV; Downstream; Front; Walker Products Aftermarket | |
| 2008 | Honda | Accord | 3.5L | V6 | GAS | Downstream Rear | Downstream Rear Oxygen Sensor for Non-Calif-ESV models.; Walker Products Aftermarket | |
| 2008 | Honda | Accord | 3.5L | V6 | GAS | Downstream Front | Non Calif-ESV No Calif-ESV Downstream Front; Walker Products Aftermarket | |
| 2008 | Honda | Accord | 3.5L | V6 | GAS | Downstream Rear | Non Calif-ESV; Downstream; Rear; Walker Products Aftermarket | |
| 2008 | Honda | Accord | 3.5L | V6 | GAS | Downstream Front | Non Calif-ESV; Downstream; Front; 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.