NGK 23553 Oxygen Sensor, Heated Narrow Band 3-Wire 18mm O2 Sensor

The NGK 23553 oxygen sensor (also called an O2 sensor or lambda sensor) is a heated, narrow-band, direct-fit replacement sensor from NTK, the sensor brand of NGK Spark Plugs. It gives the engine computer constant closed-loop feedback on exhaust oxygen content. The computer uses that feedback to control the air-fuel ratio, which supports engine performance, fuel economy and lower emissions. It also helps the OBDII system detect fuel delivery or catalytic converter problems.

Key Features:

• Heated, narrow-band, 3-wire design with a 0-1 V signal range
• Switching titania-type sensing element, which does not need an outside air reference
• Ceramic sensing element with an integrated heater that reaches operating temperature quickly for faster closed-loop activation and reduced cold-start emissions
• Protective overcoat and damage-tolerant housing that shield the element from silicone and lead poisoning
• Porous PTFE filter that lets atmospheric oxygen in while keeping out water and engine grime
• Threaded mounting with M18-1.5 thread and 7/8 in. (22 mm) hex
• Approximately 10.75 in. wiring harness with an OE-style connector (female, oval, 3 pin terminals) for plug-in installation
• Built to OE specifications, with vibration and thermal shock testing during development and testing during manufacturing

Cross-References: Bosch 12009, Delphi ES10182, DENSO 234-3116, ACDelco 213-1299 and 213-17, Spectra Premium OS5096, CARQUEST 75-1515, BWD OS118, Chrysler 4713639, Standard Motor Products SG21.

NTK is a leading original-equipment oxygen sensor supplier. The 23553 is designed to restore the fit, form and function of the factory sensor.