HomeEmission Control > SensorsWalker 350-34573 Oxygen Sensor - Upstream Front
Part #: 350-34573

Walker 350-34573 Oxygen Sensor - Upstream Front

Walker Products Aftermarket, Upstream Front
6 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 Front
Fitment: Mazda, 6
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Walker 350-34573 Oxygen Sensor for Mazda 6

The Walker 350-34573 oxygen sensor is designed specifically for Mazda 6 models, providing precise emission control and engine performance monitoring. This heated oxygen sensor features a threaded mounting type and a radiused polygon male connector for secure installation.

  • Heated oxygen sensor with 4-wire configuration
  • Specific fit for Mazda 6 vehicles
  • Threaded mounting with 18.0 mm thread diameter
  • Radiused polygon male connector for reliable connection
  • Wiring harness length of 45.98 inches and overall length of 49.53 inches
  • 20 gauge wire for durability and signal integrity

Detailed Product Description

This Walker Products Aftermarket oxygen sensor (part number 350-34573) is engineered to meet the exact specifications of Mazda 6 models. The sensor type is heated, which allows for faster warm-up times and improved accuracy in measuring oxygen levels in the exhaust gases. It includes a 4-wire setup, which supports both the sensor signal and the heating element. The wiring harness length of 45.98 inches and overall length of 49.53 inches provide ample reach for installation in the designated mounting location. The connector features a radiused polygon shape with a male gender, ensuring a secure and precise fit with the vehicle’s wiring harness. The threaded mounting type with an 18.0 mm diameter allows for straightforward replacement without modifications.

Walker Products Aftermarket Line

The Walker Products Aftermarket line focuses on providing reliable emission control components that meet or exceed OEM standards. This oxygen sensor is part of that line, designed to offer a direct fit and dependable performance for Mazda 6 owners requiring sensor replacement. The product line emphasizes compatibility and quality to support emission system functionality and vehicle diagnostics.

Common Applications and Issues Addressed

  • Restores accurate oxygen level readings for optimal fuel mixture
  • Helps resolve check engine light triggers related to oxygen sensor faults
  • Improves engine performance and fuel efficiency by providing correct feedback to the ECU
  • Reduces harmful emissions by ensuring proper catalytic converter operation
  • Prevents drivability issues caused by faulty sensor signals

Installation Notes and Tips

When installing the Walker 350-34573 oxygen sensor on a Mazda 6, ensure the engine is cool to avoid burns. Use appropriate tools to remove the old sensor and avoid damaging the threaded mounting hole. Verify the connector shape and wire count match the vehicle’s harness before installation. Tighten the sensor to the manufacturer’s torque specifications to prevent leaks or sensor damage. It is recommended to inspect the wiring harness for any damage or corrosion during replacement.

Quality Assurance and Warranty

Walker Products Aftermarket oxygen sensors are manufactured to meet strict quality standards for emission control components. While specific warranty details for part number 350-34573 should be confirmed at the point of purchase, Walker typically offers coverage against defects in materials and workmanship. This ensures that the oxygen sensor performs reliably under normal operating conditions for Mazda 6 vehicles.

BrandWalker
Part Number350-34573
PositionWalker Products Aftermarket, Upstream Front
Connector GenderMale
Connector ShapeRadiused Polygon
Mounting TypeThreaded
Overall Length49.53
Sensor TypeHeated
Thread Diameter18.0
Universal Or Specific FitSpecific
Wire Gauge Measurement20
Wire Quantity4
Wiring Harness Length45.98

This part fits 6 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2008Mazda63.0LV6GASUpstream FrontFront upstream oxygen sensor needed for proper functionality near exhaust manifold.; Walker Products Aftermarket
2007Mazda63.0LV6GASUpstream FrontFront upstream oxygen sensor needed for proper functionality near exhaust manifold.; Walker Products Aftermarket
2006Mazda63.0LV6GASUpstream FrontFront upstream oxygen sensor needed for proper functionality near exhaust manifold.; Walker Products Aftermarket
2005Mazda63.0LV6GASUpstream FrontFront upstream oxygen sensor needed for proper functionality near exhaust manifold.; Walker Products Aftermarket
2004Mazda63.0LV6GASUpstream FrontFront upstream oxygen sensor needed for proper functionality near exhaust manifold.; Walker Products Aftermarket
2003Mazda63.0LV6GASUpstream FrontFront upstream oxygen sensor needed for proper functionality near exhaust manifold.; 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.