Walker Products 350-34205 Oxygen Sensor 4-Wire Direct Fit Narrow-Band

The Walker Products 350-34205 is a premium 4-wire direct fit narrow-band oxygen sensor designed to meet or exceed original equipment specifications. This sensor monitors oxygen content in exhaust gases to provide critical feedback to the engine control unit, enabling optimal air-fuel mixture calibration for improved fuel economy and reduced emissions.

Key Features:

• 4-wire heated narrow-band design for fast response and accurate oxygen sensing
• Direct fit application with OE-style connector for simple installation
• Ceramic sensing element with gas-permeable platinum electrode coating
• Laser-welded body and shield construction for durability
• High-temperature sleeving protects wiring in harsh exhaust environments
• Plasma-sprayed protective coating prevents contamination from combustion residue
• 100% performance tested to ensure reliable operation

Walker Products has been manufacturing precision engine management sensors and fuel system components since 1946. Each oxygen sensor is engineered to provide exact OE fit, form, and function, ensuring proper diagnostic feedback to the ECU. When an oxygen sensor fails, symptoms may include rough engine operation, increased fuel consumption, elevated emissions, or an illuminated check engine light. This replacement sensor restores proper engine performance and helps maintain compliance with emissions standards.