Walker Products 350-34901 Direct Fit Oxygen Sensor 4-Wire Heated Narrow-Band

The Walker Products 350-34901 is a direct-fit oxygen sensor engineered to meet or exceed OEM specifications for reliable engine management and emissions control. This heated 4-wire narrow-band oxygen sensor is designed as an original equipment replacement, manufactured to provide the exact diagnostic feedback required by your vehicle's ECU.

Key Features:

• Precision-engineered ceramic sensor body made of stabilized zirconium dioxide (zirconia) for accurate oxygen detection
• Gas-permeable platinum layer electrodes provide reliable voltage signals proportional to exhaust oxygen levels
• Protective porous ceramic coating prevents contamination and erosion from combustion residue and particulates
• Direct-fit design ensures proper fitment and reliable connection without modifications
• Monitors exhaust gases to fine-tune air-fuel mixture for improved fuel economy and reduced emissions
• ISO 9001/TS 16949 certified manufacturing ensures consistent quality and performance

Walker Products has been a trusted manufacturer of engine management sensors and fuel system components since 1946. This oxygen sensor helps prevent poor engine performance, increased fuel consumption, elevated emissions, and check engine lights caused by failed sensors. The sensor is monitored by the ECU multiple times per second to maintain optimal stoichiometric air-fuel ratios for maximum efficiency.