HomeEmission Control > SensorsWalker 350-64048 Oxygen Sensor - Upstream
Part #: 350-64048

Walker 350-64048 Oxygen Sensor - Upstream

Walker Products Aftermarket, Upstream
14 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, Upstream
Fitment: Mazda, 2
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Walker 350-64048 Oxygen Sensor for Mazda Vehicles

The Walker 350-64048 oxygen sensor is designed specifically for select Mazda models, providing precise emissions control and engine performance monitoring. This heated oxygen sensor ensures accurate readings and reliable operation under various driving conditions.

  • Heated sensor type for faster warm-up and accurate readings
  • Specific fitment for Mazda vehicles, ensuring proper compatibility
  • Threaded mounting type with an 18.0 mm thread diameter for secure installation
  • Four-wire design with 20 gauge wire for optimal signal transmission
  • Connector features a radiused polygon shape with a female gender for exact fit
  • Wiring harness length of 21.18 inches and overall length of 24.72 inches for proper reach

Detailed Description of Walker Products Aftermarket Oxygen Sensor

This oxygen sensor, part number 350-64048, is part of the Walker Products Aftermarket line, which focuses on delivering reliable emission control components tailored to specific vehicle applications. The heated sensor design allows the unit to reach operating temperature quickly, improving fuel efficiency and reducing emissions. The four-wire configuration supports both the sensor signal and heater circuit, ensuring consistent performance. The radiused polygon female connector and threaded mounting type provide a secure and precise fit for compatible Mazda models.

Common Applications and Issues Addressed

  • Helps maintain optimal air-fuel mixture for efficient combustion
  • Reduces engine misfires caused by faulty oxygen sensor readings
  • Prevents increased emissions and failed emissions tests
  • Improves fuel economy by providing accurate sensor data
  • Resolves check engine light triggers related to oxygen sensor faults

Installation Notes and Tips

When installing the Walker 350-64048 oxygen sensor, ensure the vehicle is compatible with this specific part number and fitment. Use proper tools to avoid damaging the threaded mounting or connector. Verify the wiring harness length and connector shape match the vehicle’s existing setup. It is recommended to replace the sensor when the engine is cool to prevent injury and ensure proper torque application during installation.

Quality Assurance and Warranty Information

Walker Products Aftermarket oxygen sensors undergo rigorous testing to meet industry standards for durability and performance. While specific warranty details for part number 350-64048 should be confirmed with the supplier, Walker typically offers coverage against manufacturing defects to ensure customer confidence in their emission control components.

BrandWalker
Part Number350-64048
PositionWalker Products Aftermarket, Upstream
Connector GenderFemale
Connector ShapeRadiused Polygon
Mounting TypeThreaded
Overall Length24.72
Sensor TypeHeated
Thread Diameter18.0
Universal Or Specific FitSpecific
Wire Gauge Measurement20
Wire Quantity4
Wiring Harness Length21.18

This part fits 14 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2017Mazda21.5LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket
2017Mazda21.5LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket
2016Mazda21.5LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket
2016Mazda21.5LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket
2015Mazda21.5LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket
2015Mazda21.5LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket
2014Mazda21.5LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket
2014Mazda21.5LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket
2013Mazda21.5LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket
2013Mazda21.5LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket
2012Mazda21.5LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket
2012Mazda21.5LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket
2011Mazda21.5LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket
2011Mazda21.5LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; 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.