Walker 350-34482 Oxygen Sensor - Downstream, Downstream Front or Upstream

Walker Oxygen Sensor for Honda and Acura

Walker Products 350-34482 is a heated oxygen sensor built as a specific-fit OE replacement for select Honda and Acura applications. It is engineered to provide the ECU with the diagnostic feedback needed for proper fuel control and emissions monitoring.

For Honda Civic, Honda Accord, Honda Odyssey, Acura Integra, Acura CL, Acura EL, and Acura NSX applications, this sensor is positioned for upstream, downstream, or downstream front service depending on the vehicle listing.

Key Features

• Heated oxygen sensor for emissions and engine management feedback
• Specific-fit design for the listed vehicle applications
• 4-wire configuration with 20-gauge wiring
• Threaded mounting type with 18.0 mm thread diameter
• Radiused polygon male connector for application-specific connection
• Overall length: 17.83; wiring harness length: 14.29
• Walker Products Aftermarket part number 350-34482

Product Details

Walker Products Aftermarket focuses on engine management and oxygen/air-fuel sensors engineered as OE-style replacements for many vehicles worldwide. Part number 350-34482 is built for the specified fitment position and is intended to deliver the diagnostic signal the ECU expects from the sensor circuit. This matters on newer vehicles that store fault codes when sensor performance drops outside normal range.

When an oxygen sensor begins to fail, the vehicle may run poorly, use more fuel, increase exhaust emissions, or trigger the malfunction indicator light. On Honda Civic, Honda Accord, and related Acura models, replacing a worn sensor can restore proper feedback for fuel trim and emissions control. Walker Products 350-34482 is listed for 1992-2000 Honda Civic, 1995-1999 Honda NSX, 1998-1999 Honda Accord, and other select Honda/Acura applications shown in the fitment data.

What It Helps Address

• Check engine light related to oxygen sensor performance
• Rough engine operation caused by inaccurate exhaust feedback
• Higher fuel consumption from incorrect air-fuel correction
• Elevated exhaust emissions during inspection or normal driving
• Fault codes tied to upstream, downstream, or downstream front sensor positions

Installation Notes

• Confirm the exact year, make, model, and sensor position before ordering.
• Inspect the sensor wiring harness and connector for heat damage or abrasion before installation.
• Use the listed threaded mounting style and connector configuration for proper fit.
• Verify whether the vehicle requires upstream, downstream, or downstream front placement.
• For 1998-1999 Honda Accord applications, review the emissions notes for California and non-California ESV coverage.

Quality Assurance

Walker Products has supplied engine management and fuel system components since 1946 and operates as an Automotive ISO9001/TS 16949 certified company. The 350-34482 oxygen sensor is manufactured for the specified application and fitment position to support the ECU feedback required by the vehicle.