Walker 350-34834 Oxygen Sensor - Downstream, Downstream Front or Upstream

Walker 350-34834 Oxygen Sensor for Acura and Honda

Walker Products 350-34834 is a heated oxygen sensor built as a specific-fit OE replacement for select Acura NSX, Acura TL, Honda Civic, and Honda Civic del Sol applications. It is engineered for the correct mounting position and ECU feedback required by the vehicle’s emissions system.

Key Features

• Heated oxygen sensor for emissions and fuel-control feedback
• Specific fitment for the listed Acura and Honda applications
• Threaded mounting type with 18.0 mm thread diameter
• 4-wire design with 20-gauge wiring
• Radiused polygon male connector for application-specific connection
• Wiring harness length: 16.06 in.; overall length: 19.61 in.

Application Details

Walker Products Aftermarket focuses on engine management and oxygen/air-fuel sensors developed as OE-style replacements for many vehicles worldwide. Part number 350-34834 is built for the specified sensor location so the ECU receives the correct diagnostic signal. This matters on vehicles such as the Acura TL and Honda Civic, where the upstream or downstream sensor position directly affects emissions monitoring and drivability.

Fits 2000-2005 Acura NSX, downstream front.
Fits 1996-2000 Honda Civic, downstream bank 1 sensor 2.
Fits 1999 Acura TL, upstream.
Fits 1996-1997 Honda Civic del Sol, downstream bank 1 sensor 2.

This part cross-references no listed aftermarket part numbers for the same application.

What It Helps Address

• Check engine light related to oxygen sensor performance
• Poor fuel economy caused by incorrect exhaust feedback
• Rough engine operation from inaccurate air-fuel readings
• Higher exhaust emissions from a failing sensor
• Stored ECU fault codes tied to the affected sensor circuit

Installation Notes

Confirm the sensor position before ordering, since this part is application-specific for upstream and downstream locations shown above. Inspect the sensor, wiring harness, and connector for heat damage, abrasion, or corrosion before installation. Verify the connector shape, wire count, and thread size match the original unit on the vehicle.

Quality Assurance

Walker Products has supplied engine management components since 1946 and operates as an Automotive ISO 9001/TS 16949 certified company. The 350-34834 oxygen sensor is manufactured for the specified application and designed to provide the ECU feedback expected for the listed Acura and Honda vehicles.