Walker 350-34586 Oxygen Sensor

Walker 350-34586 Oxygen Sensor Overview

Walker Products 350-34586 is a heated oxygen sensor built as a specific-fit OE replacement for select Mazda, Ford, and related applications. It is engineered to deliver the diagnostic feedback the ECU expects, helping maintain proper air-fuel control and emissions performance.

For drivers searching for a Mazda 626 upstream oxygen sensor, Mazda Millenia downstream front oxygen sensor, or Ford Probe downstream oxygen sensor, this Walker Products Aftermarket part number 350-34586 is built around the vehicle’s original mounting position and connector style.

Key Features

• Heated oxygen sensor for faster operating response
• Specific-fit design for the listed application and position
• 4-wire configuration with a female radiused polygon connector
• 18.0 mm thread diameter and threaded mounting type
• Wiring harness length: 10.35
• Overall length: 13.9
• Wire gauge measurement: 20
• Supports ECU feedback for emissions and fuel-control monitoring

Detailed Description

Walker Products Aftermarket focuses on engine management and oxygen/air-fuel sensors engineered as OE-style replacements for worldwide vehicle coverage. Part number 350-34586 is manufactured for the specified fitment position, helping restore the signal the engine control unit uses to manage fuel delivery and monitor emissions-system performance. This makes it a practical choice for Mazda 626 upstream oxygen sensor replacement needs, as well as Mazda Millenia and Ford Probe applications listed below.

This part cross-references no additional part numbers in the provided data. Walker Products 350-34586 is part of the Walker Products Aftermarket line, which centers on application-specific engine management components for modern diagnostic systems.

Fitment

• Fits 2001-2002 Mazda Millenia, downstream front.
• Fits 1995-1996 Mazda Millenia, downstream front.
• Fits 1998-2000 Mazda 626, upstream.
• Fits 1997-2000 Mazda Millenia, upstream front.
• Fits 1996-1997 Ford Probe, downstream.
• Fits 1996-1997 Mazda 626, upstream.
• Fits 1996-1997 Mazda MX-6, upstream.

What It Helps Address

• Check engine light related to oxygen sensor performance
• Poor engine operation caused by incorrect exhaust feedback
• Increased fuel consumption from inaccurate air-fuel control
• Higher exhaust emissions from a failing sensor signal
• Fault codes stored in the ECU for the affected sensor circuit

Installation Notes

Confirm the vehicle year, make, model, and sensor position before ordering. Match the connector shape, wire count, thread diameter, and harness length to the original sensor. Inspect the sensor wiring harness and connector for heat damage, abrasion, or corrosion before installation, since physical damage can shorten service life and affect diagnostic readings.

Quality Assurance

Walker Products is an automotive ISO 9001/TS 16949 certified company with a long history in engine management components dating back to 1946. Part number 350-34586 is built for specific application fitment and ECU feedback requirements.