Walker Products 250-241342 Narrow-Band Oxygen Sensor - 4-Wire

The Walker Products 250-241342 is a 4-wire narrow-band oxygen sensor engineered to accurately monitor exhaust gas oxygen content and relay that data to your vehicle's engine control unit (ECU). By continuously measuring combustion efficiency, this sensor enables precise air-fuel ratio adjustments that help maintain optimal engine performance, fuel economy, and emissions compliance.

Key Features:

• 4-Wire Design: Includes dedicated heater circuit wires for faster sensor warm-up and stable operation across a wide range of operating temperatures
• Narrow-Band Technology: Delivers precise voltage signal output to the ECU for accurate stoichiometric air-fuel ratio control
• OE-Grade Construction: Built to original equipment specifications for reliable, long-lasting performance
• Ceramic Sensing Element: Provides fast response times and consistent readings under demanding exhaust conditions
• Integrated Heater: Brings the sensor to operating temperature quickly, reducing cold-start emissions and improving fuel management response

Walker Products has been a trusted name in engine management components for decades, offering direct-fit oxygen sensors that meet or exceed OEM standards. The 250-241342 is designed for straightforward installation and dependable service life, making it a reliable replacement for a failed or degraded upstream or downstream O2 sensor.