Walker 350-34605 Oxygen Sensor - Upstream Front or Upstream Rear

Walker 350-34605 Oxygen Sensor for Acura NSX

Walker Products 350-34605 is a heated oxygen sensor built as a specific-fit OE replacement for select Acura NSX applications. It is engineered to provide the ECU with the exhaust feedback needed for accurate fuel control and emissions monitoring on 2000-2005 Acura NSX models.

Key Features

• Heated oxygen sensor design for faster operating response
• Specific fitment for select Acura NSX upstream positions
• 4-wire configuration with male connector
• Threaded mounting with 18.0 mm thread diameter
• Wiring harness length: 32.99 in.; overall length: 36.54 in.
• Radiused polygon connector shape for application-specific fitment

Product Details

Walker Products Aftermarket focuses on engine management and oxygen/air-fuel sensors engineered for OE-style replacement use. Part number 350-34605 is built for the 2000-2005 Acura NSX in upstream rear and upstream front positions, making it a direct-fit option for exhaust sensor service on this platform. The heated sensor design helps the engine control module receive the feedback it needs for air-fuel adjustment, emissions control, and fault monitoring.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What It Helps Address

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

Installation Notes and Tips

Verify the sensor position before installation: this part is listed for upstream front and upstream rear locations on the Acura NSX. Inspect the sensor wiring harness and connector for heat damage, abrasion, or corrosion before replacement. Confirm thread size, connector style, and harness routing against the original sensor to ensure proper fitment on the exhaust system.

Quality Assurance

Walker Products states that its engine management and oxygen/air-fuel sensors are developed as OE replacement parts for worldwide vehicle applications. The brand is ISO 9001/TS 16949 certified and has supplied engine management and fuel system components since 1946.