Denso Direct Fit Oxygen Sensors, sometimes referred to as Lambda or O2 sensors or probes, are designed to be a 'plug and go' replacement for Original Equipment (OE) or competitor brand Oxygen sensors. This means you do not have to perform any cutting and reconnecting of cables, or need to reuse the original sensor connector. The correct connector for your vehicle's wiring loom is already attached to the direct fit replacement sensor.
Flange fitting type sensors are supplied with a gasket if required.
Note that some vehicles may require an ECU reset in order to recalibrate engine management systems for the new sensor, this usually entails disconnecting the battery for a number of hours, overnight is usually sufficient.