Walker Products 350-32029 2-Wire Narrow Band Oxygen Sensor Direct Fit with Flange

The Walker Products 350-32029 is a 2-wire, narrow band oxygen sensor featuring a direct-fit design with a flange mount. Engineered as an original equipment replacement, this O2 sensor is manufactured for a specific vehicle application, fitment position, and provides the relevant diagnostic feedback required by the vehicle's Engine Control Unit (ECU).

How It Works:

The oxygen sensor measures the amount of oxygen in the exhaust stream and compares it to the oxygen content in the ambient air. This voltage signal is sent to the ECU, which uses it to adjust the air-fuel mixture for optimal combustion efficiency, improved fuel economy, and reduced emissions. A narrow band sensor signals whether the engine is running rich (too much fuel) or lean (too much air), enabling continuous closed-loop fuel control.

Key Features:

• 2-Wire Design: Unheated narrow band sensor with a dedicated sensor signal wire
• Direct Fit: Manufactured for a specific application — no modifications required
• Flange Mount: Secure flange-style exhaust mounting for a reliable, leak-free installation
• Narrow Band Technology: Proven zirconia ceramic sensing element coated with gas-permeable platinum electrodes
• OE Replacement Quality: Engineered and tested to meet or exceed original equipment specifications
• Platinum Electrode Coating: Helps prevent contamination and erosion from combustion residue and exhaust particulates

Walker Products has been supplying the automotive industry with fuel system components and engine management sensors since 1946. Every sensor in their lineup is purpose-built to deliver accurate performance and long-term reliability.

WARNING: This product can expose you to chemicals including DEHP, which is known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.