Walker 350-35023 Oxygen Sensor - Upstream Front or Upstream Rear

Walker 350-35023 Oxygen Sensor for Honda and Acura

Walker Products 350-35023 is a heated oxygen sensor built as a specific-fit OE-style replacement for select Acura, Honda, and Saturn applications. It is engineered to provide the ECU with the correct exhaust feedback for upstream sensor locations, helping maintain proper fuel control and emissions monitoring.

Walker Products Aftermarket focuses on engine management and oxygen/air-fuel sensors for exact application fitment. The 350-35023 follows that approach with a threaded mounting design, 5-wire configuration, and a connector layout matched to the vehicle application.

Key Features

• Heated oxygen sensor for upstream exhaust monitoring
• Specific-fit design for direct application matching
• 5-wire sensor configuration
• Threaded mounting type with 18.0 mm thread diameter
• Radiused polygon male connector
• Wiring harness length: 10.35
• Overall length: 13.9
• Wire gauge measurement: 20

Detailed Description

The Walker 350-35023 oxygen sensor is designed for vehicles that rely on accurate upstream exhaust data to manage air-fuel ratio and emissions performance. It is a heated sensor, which supports faster operating readiness after startup, and it is built for specific fitment rather than universal use. This part number is engineered for select 2003-2008 Acura RL, Acura TL, Acura MDX, Honda Accord, Honda Odyssey, Honda Pilot, Honda Ridgeline, and Saturn Vue applications, including upstream front and upstream rear positions where listed. For buyers searching for a Walker 350-35023 oxygen sensor for a 2005-2008 Honda Pilot or a 2004-2008 Acura TL upstream front sensor, this part is matched to the listed vehicle and position requirements.

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

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 control
• Elevated exhaust emissions from a failing upstream sensor
• Stored ECU fault codes tied to the affected sensor circuit

Installation Notes and Tips

Confirm the vehicle year, make, model, and sensor position before ordering. This Walker 350-35023 uses a threaded mount and a male connector, so the connector shape and harness routing should be matched to the original sensor. Inspect the sensor wiring harness and connector for heat damage, abrasion, or corrosion before installation, since physical damage can shorten sensor life and affect ECU feedback.

Quality Assurance

Walker Products manufactures engine management sensors as OE-replacement parts for specific applications and supports its product line with ISO 9001/TS 16949 certified manufacturing practices. Since 1946, Walker Products has supplied oxygen and fuel system components for vehicle service and repair.