Walker Products 350-34435 4-Wire Titania Narrow Band Oxygen Sensor with Flange

The Walker Products 350-34435 is a 4-wire Titania narrow band oxygen sensor with flange mount, engineered as a direct-fit OEM replacement for specific vehicle applications. Titania-type O2 sensors operate differently from standard zirconia sensors — they vary electrical resistance rather than generating voltage, making them the required replacement type for vehicles originally equipped with Titania sensors.

Walker Products oxygen sensors are designed and manufactured to meet or exceed original equipment fit, form, and function, ensuring seamless integration with the vehicle's Engine Control Unit (ECU). The 4-wire design incorporates an integrated heater circuit, allowing the sensor to reach optimal operating temperature quickly and deliver accurate exhaust gas readings from the moment the engine starts.

Key Features:

• Titania sensor element — resistance-based technology engineered to match OE Titania sensor specifications
• 4-wire construction — includes dedicated heater wires for rapid warm-up and consistent performance
• Flange mount — bolt-on flange provides secure, rattle-free installation
• Narrow band operation — monitors the stoichiometric air/fuel ratio for precise closed-loop fuel control
• Direct-fit replacement — manufactured for specific vehicle applications with correct connector and wire length
• OEM-grade materials — built to meet ISO9001/TS 16949 quality standards

A properly functioning oxygen sensor is critical to fuel economy, emissions compliance, and engine performance. A failing O2 sensor can trigger a Malfunction Indicator Light (MIL/Check Engine Light), increase fuel consumption, and elevate exhaust emissions. The Walker Products 350-34435 restores proper closed-loop fuel control and helps keep the engine running efficiently.

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