HomeEmission Control > SensorsWalker 350-34510 Oxygen Sensor - Downstream, Downstream Rear or Upstream
Part #: 350-34510

Walker 350-34510 Oxygen Sensor - Downstream, Downstream Rear or Upstream

Walker Products Aftermarket, Downstream
9 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Walker Products Aftermarket, Downstream
Fitment: Mazda, 3, 6, and 929
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Walker 350-34510 Oxygen Sensor for Mazda Vehicles

The Walker 350-34510 oxygen sensor is designed specifically for select Mazda models, including the Mazda 3, Mazda 3 Sport, Mazda 6, and Mazda 929. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by monitoring exhaust gases effectively.

  • Heated oxygen sensor with 4-wire configuration
  • Specific fit for Mazda 3, 3 Sport, 6, and 929 models
  • Threaded mounting type with 18.0 mm thread diameter
  • Radiused polygon male connector for secure connection
  • Wiring harness length of 13.31 inches and overall length of 16.85 inches
  • Wire gauge measurement of 20 for reliable signal transmission

Detailed Features and Specifications

This Walker oxygen sensor (part number 350-34510) features a heated sensor type that allows for quicker activation and improved fuel efficiency. The sensor includes a 4-wire design, which supports both the heating element and signal wires, ensuring accurate oxygen level readings. The radiused polygon male connector provides a secure and precise fit, reducing the risk of connection issues. With a wiring harness length of 13.31 inches and an overall length of 16.85 inches, this sensor is engineered to fit the specific layout of compatible Mazda models. The threaded mounting type with an 18.0 mm diameter allows for straightforward installation and a tight seal in the exhaust system.

Walker Products Aftermarket Brand Line

The Walker Products Aftermarket line focuses on delivering reliable emission control components that meet or exceed OEM standards. This oxygen sensor is part of that product line, offering a direct replacement solution tailored for specific vehicle applications. The brand line emphasizes quality and fitment accuracy, which is critical for maintaining proper engine management and emissions compliance in Mazda vehicles.

Common Applications and Problem Resolution

  • Restores accurate air-fuel mixture readings for Mazda 3, 3 Sport, 6, and 929
  • Resolves check engine light issues related to oxygen sensor faults
  • Improves fuel economy by providing precise exhaust gas data
  • Reduces harmful emissions by ensuring proper catalytic converter function
  • Eliminates rough idling or engine hesitation caused by faulty sensors

Installation Notes and Tips

When installing the Walker 350-34510 oxygen sensor, ensure the engine and exhaust system are cool to avoid burns. Use the correct tools to remove the old sensor and avoid damaging the threaded mounting hole. Verify the connector type matches the vehicle harness before installation. Properly torque the sensor to the manufacturer’s specifications to prevent exhaust leaks. It is recommended to inspect wiring and connectors for damage during replacement.

Quality Assurance and Warranty

Walker Products Aftermarket oxygen sensors undergo rigorous testing to meet emission control standards and ensure durability. This part number 350-34510 is manufactured to provide consistent performance and fitment for the specified Mazda models. Warranty coverage details should be confirmed with the product documentation or supplier, as it may vary by region.

BrandWalker
Part Number350-34510
PositionWalker Products Aftermarket, Downstream
Connector GenderMale
Connector ShapeRadiused Polygon
Mounting TypeThreaded
Overall Length16.85
Sensor TypeHeated
Thread Diameter18.0
Universal Or Specific FitSpecific
Wire Gauge Measurement20
Wire Quantity4
Wiring Harness Length13.31

This part fits 9 vehicles. Search below:

YearMakeModelSubmodelLitersCylindersFuel TypePositionNotes
2013Mazda32.0LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket
2013Mazda3 Sport2.0LL4DownstreamOE Replacement
2012Mazda32.0LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket
2012Mazda3 Sport2.0LL4DownstreamOE Replacement
2005Mazda63.0LV6GASDownstream RearRear downstream oxygen sensor must be installed in correct position.; Walker Products Aftermarket
2004Mazda63.0LV6GASDownstream RearRear downstream oxygen sensor must be installed in correct position.; Walker Products Aftermarket
2003Mazda63.0LV6GASDownstream RearRear downstream oxygen sensor must be installed in correct position.; Walker Products Aftermarket
1991Mazda929S3.0LV6GASUpstreamInstall upstream oxygen sensor for optimal performance.; Walker Products Aftermarket
1990Mazda929S3.0LV6GASUpstreamInstall upstream oxygen sensor for optimal performance.; 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.