Walker Products 350-34300 Universal Oxygen Sensor Narrow-Band - 4-Wire

The Walker Products 350-34300 is a universal 4-wire narrow-band oxygen sensor designed for versatile installation across multiple vehicle applications. This sensor monitors exhaust gas oxygen content to provide critical feedback to the engine control module (ECM), enabling precise air-fuel mixture adjustments for optimal engine performance.

Key Features:

• Universal design allows for custom installation on various vehicle makes and models
• 4-wire heated configuration ensures faster sensor activation and accurate readings
• Narrow-band technology for traditional stoichiometric air-fuel ratio monitoring
• Zirconia ceramic sensing element with gas-permeable platinum electrodes
• Protective ceramic coating prevents contamination from combustion residue and particulates
• Engineered to meet or exceed OEM specifications for reliable performance
• ISO9001/TS 16949 certified manufacturing quality

Walker Products has been manufacturing engine management sensors and fuel system components since 1946, providing trusted aftermarket solutions. This oxygen sensor measures combustion efficiency by monitoring oxygen levels in the exhaust stream, helping to improve fuel economy, reduce emissions, and prevent check engine light issues caused by faulty sensor readings. Universal sensors require proper wiring connections during installation.