METAL GASKET W/RING

The Bosch 13654 is a four-wire, heated oxygen (O2) sensor designed for the front of Saab 900 and 9000 vehicles. Oxygen sensors are crucial for emissions control, detecting oxygen levels in the exhaust and sending readings to the engine's computer. This sensor features a heating element to expedite the sensing process.

Failed O2 sensors can lead to incorrect engine computer operation, illuminated check engine lights, and reduced fuel economy. Over time, continuous exposure to exhaust temperatures degrades the sensor's ability to create voltage, resulting in inaccurate readings. Bosch is a leading automotive component supplier, and this sensor is made to OEM specifications.