Walker 350-64062 Oxygen Sensor - Upstream

Walker 350-64062 Oxygen Sensor for Mazda 6

Walker Products 350-64062 is a heated oxygen sensor built as a specific-fit OE replacement for select 2006-2008 Mazda 6 California emissions ESV applications. It is engineered to provide the ECU with the exhaust feedback needed for proper fuel control and emissions monitoring.

Key Features

• Heated oxygen sensor for faster operating response
• Specific fit for the correct application and mounting position
• 4-wire design with 20-gauge wiring
• Radiused polygon male connector for vehicle-specific connection
• Threaded mounting with 18.0 mm thread diameter
• Wiring harness length: 22.17 in.; overall length: 25.71 in.

Product Details

Walker Products Aftermarket focuses on engine management and oxygen/air-fuel sensors engineered for OE-style replacement use. Part number 350-64062 is made for upstream placement on the Mazda 6 and is listed for 2006-2008 Mazda 6, upstream, including California emissions ESV vehicles. If the original sensor is failing, the engine control unit may log fault codes and the vehicle may show poor drivability, higher fuel use, increased exhaust emissions, or a malfunction indicator light. This Walker oxygen sensor is built to restore the exhaust signal the ECU expects from the upstream sensor location.

This part cross-references no listed alternate part numbers in the provided data.

What It Helps Address

• Check engine light related to upstream oxygen sensor performance
• Rich or lean fuel mixture concerns
• Reduced fuel economy from inaccurate exhaust feedback
• Elevated exhaust emissions
• Poor engine operation caused by a failing sensor signal

Installation Notes

Fits 2006-2008 Mazda 6, upstream. Confirm California emissions ESV application before ordering. Inspect the sensor wiring harness and connector for heat damage, abrasion, or corrosion before installation, since damaged wiring can shorten sensor life and affect readings. Verify the threaded mounting location and connector style match the original part.

Quality Assurance

Walker Products states that its engine management sensors are developed as OE replacement parts and manufactured under ISO 9001/TS 16949 quality systems. The brand has supplied engine management and fuel system components since 1946.