HomeEmission Control > SensorsWalker 350-34192 Oxygen Sensor - Upstream
Part #: 350-34192

Walker 350-34192 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, 5 and 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 350-34192 Oxygen Sensor for Mazda 3 and 5

The Walker 350-34192 oxygen sensor is designed specifically for Mazda 3 and Mazda 5 models, providing precise emission control and engine performance monitoring. This heated oxygen sensor ensures accurate readings and efficient fuel management for your vehicle.

  • Heated oxygen sensor with threaded mounting
  • Specific fit for Mazda 3 and Mazda 5 models
  • 15.67-inch wiring harness length for optimal installation
  • Four-wire design with 20 gauge wire for reliable signal transmission
  • Radiused polygon female connector for secure connection
  • 18.0 mm thread diameter and 19.21-inch overall length

Detailed Product Description

The Walker 350-34192 oxygen sensor is a heated sensor designed to provide accurate air-fuel ratio data to the engine control unit (ECU). Its four-wire configuration includes a heating element that allows the sensor to reach operating temperature quickly, improving response time and reducing emissions. The sensor features a threaded mounting type with an 18.0 mm thread diameter, ensuring a secure and precise fit in the exhaust system. The wiring harness length of 15.67 inches and overall length of 19.21 inches provide flexibility during installation, while the radiused polygon female connector ensures a reliable electrical connection.

This oxygen sensor is part of the Walker Products Aftermarket line, which focuses on delivering quality emission control components tailored to specific vehicle applications. Walker Products Aftermarket parts are engineered to meet or exceed OEM specifications, making them suitable replacements for factory-installed sensors on Mazda vehicles.

Compatible Vehicles and Applications

  • Compatible with Mazda 3 models requiring a specific heated oxygen sensor
  • Compatible with Mazda 5 models designed for this sensor type
  • Used to monitor exhaust oxygen levels for optimal engine performance
  • Helps maintain proper fuel mixture and reduce harmful emissions
  • Addresses issues such as poor fuel economy, rough idling, and failed emissions tests

Installation Notes and Tips

  • Ensure the vehicle is cool before removing the old sensor to avoid burns
  • Use appropriate tools to avoid damaging the 18.0 mm threaded mounting
  • Verify connector compatibility with the radiused polygon female plug
  • Check wiring harness length (15.67 inches) for proper routing and clearance
  • Follow vehicle-specific torque specifications when installing the sensor

Quality Assurance and Warranty

Walker Products Aftermarket oxygen sensors are manufactured to meet stringent quality standards, ensuring reliable performance and durability. While specific warranty details for part number 350-34192 may vary, Walker typically offers coverage against defects in materials and workmanship. Refer to the product documentation or manufacturer for exact warranty terms.

BrandWalker
Part Number350-34192
PositionWalker Products Aftermarket, Upstream
Connector GenderFemale
Connector ShapeRadiused Polygon
Mounting TypeThreaded
Overall Length19.21
Sensor TypeHeated
Thread Diameter18.0
Universal Or Specific FitSpecific
Wire Gauge Measurement20
Wire Quantity4
Wiring Harness Length15.67

This part fits 14 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2007Mazda52.3LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket
2007Mazda52.3LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket
2006Mazda52.3LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket
2006Mazda52.3LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket
2005Mazda32.3LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket
2005Mazda32.0LL4GASUpstreamNon California emissions certified; Bank 1 Sensor 1; Upstream position; Not suitable for California emissionscertified vehicles; Walker Products Aftermarket
2005Mazda32.3LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket
2005Mazda32.0LL4GASUpstreamFor vehicles without California and Federal Emissions - Upstream Bank 1 Sensor 1.; Walker Products Aftermarket
2005Mazda32.0LL4GASUpstreamUpstream oxygen sensor for bank 1 sensor 1 incompatible with California-ESV vehicles.; Walker Products Aftermarket
2004Mazda32.3LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products Aftermarket
2004Mazda32.0LL4GASUpstreamNon California emissions certified; Bank 1 Sensor 1; Upstream position; Not suitable for California emissionscertified vehicles; Walker Products Aftermarket
2004Mazda32.3LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products Aftermarket
2004Mazda32.0LL4GASUpstreamFor vehicles without California and Federal Emissions - Upstream Bank 1 Sensor 1.; Walker Products Aftermarket
2004Mazda32.0LL4GASUpstreamUpstream oxygen sensor for bank 1 sensor 1 incompatible with California-ESV vehicles.; 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.