HomeEmission Control > SensorsWalker 350-34110 Oxygen Sensor - Downstream
Part #: 350-34110

Walker 350-34110 Oxygen Sensor - Downstream

Walker Products Aftermarket, Downstream
11 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
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OE Direct Replacement — Bolt-on fit, no modifications needed
Walker Products Aftermarket, Downstream
Fitment: Mazda, 3
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Walker Oxygen Sensor 350-34110 for Mazda 3

The Walker 350-34110 oxygen sensor is designed specifically for Mazda 3 and Mazda 3 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 management system.

  • Heated oxygen sensor with 4 wires for reliable operation
  • Specific fit for Mazda 3 and Mazda 3 Sport models
  • Threaded mounting type with 18.0 mm thread diameter
  • Radiused polygon male connector for secure electrical connection
  • Wiring harness length of 10.35 inches and overall length of 13.9 inches
  • 20 gauge wire for durability and signal integrity

Walker Products Aftermarket Line Details

This oxygen sensor is part of the Walker Products Aftermarket line, which focuses on providing replacement emission control components that meet or exceed OEM specifications. The line emphasizes precise fitment and reliable sensor performance, making it suitable for maintaining factory-level emissions standards on vehicles like the Mazda 3.

Technical Description and Attributes

The Walker 350-34110 oxygen sensor features a heated sensor element that allows for faster warm-up times and improved sensor responsiveness. It includes four wires, which support both the sensor signal and the heating element, ensuring consistent operation under various driving conditions. The sensor’s radiused polygon male connector provides a secure and corrosion-resistant electrical connection. With a threaded mounting type and an 18.0 mm thread diameter, installation aligns with factory specifications. The wiring harness length of 10.35 inches and overall length of 13.9 inches accommodate the specific routing requirements of Mazda 3 and Mazda 3 Sport models.

Common Applications and Problem Resolution

  • Restores accurate oxygen sensing for proper air-fuel mixture control
  • Helps resolve check engine light issues related to oxygen sensor faults
  • Improves fuel efficiency by providing correct emissions data
  • Reduces harmful exhaust emissions by maintaining sensor accuracy
  • Prevents engine performance problems caused by faulty oxygen sensors

Installation Notes and Tips

When installing the Walker 350-34110 oxygen sensor, ensure the vehicle is cool to avoid burns. Use an oxygen sensor socket or appropriate tool to remove the old sensor carefully. Verify the connector type matches the vehicle harness before installation. Thread the sensor carefully to avoid cross-threading and torque to manufacturer specifications. Confirm all electrical connections are secure and free of corrosion for optimal sensor performance.

Quality Assurance and Warranty

Walker Products Aftermarket oxygen sensors are manufactured to meet stringent quality standards and are tested for durability and performance. This part number 350-34110 is engineered to provide reliable operation in Mazda 3 and Mazda 3 Sport vehicles. Warranty coverage details should be confirmed with the product documentation or supplier.

BrandWalker
Part Number350-34110
PositionWalker Products Aftermarket, Downstream
Connector GenderMale
Connector ShapeRadiused Polygon
Mounting TypeThreaded
Overall Length13.9
Sensor TypeHeated
Thread Diameter18.0
Universal Or Specific FitSpecific
Wire Gauge Measurement20
Wire Quantity4
Wiring Harness Length10.35

This part fits 11 vehicles. Search below:

YearMakeModelLitersCylindersFuel 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
2011Mazda32.5LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket
2011Mazda32.0LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket
2011Mazda3 Sport2.5LL4UpstreamTo 07/01/2010; OE Replacement
2010Mazda32.5LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket
2010Mazda32.0LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket
2010Mazda32.0LL4DownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products Aftermarket
2010Mazda3 Sport2.5LL4DownstreamTo 07/01/2010; OE Replacement

* 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.