96418971 Auto Oxygen Sensor 4-Wire Heated M18x1.5 For Chevrolet Aveo Captiva Spark Matiz Suzuki

The 96418971 heated zirconia oxygen sensor (lambda sensor) is a direct-fit replacement for the GM Daewoo / Chevrolet petrol engine family. It measures the residual oxygen content in the exhaust stream and feeds a 0.1–0.9 V switching signal back to the ECU, enabling closed-loop fuel control to be maintained at the stoichiometric air-fuel ratio.

The built-in heater brings the ceramic element up to operating temperature within seconds of a cold start, allowing the ECU to enter closed-loop control earlier and reducing cold-start emissions. The sensor body is a stainless-steel shell with a zirconia ceramic element and a vapour-deposited platinum electrode, protected by a spinel coating against solid particle erosion.

• Four wires, two circuits: two wires drive the internal heater; two carry the sensor signal and signal ground.
• Signal output: approximately 0.6–1.0 V under rich conditions, falling close to 0.1 V under lean conditions; the ECU switches fuel trim as the signal crosses the 0.45 V threshold.
• Direct-fit: vehicle-specific rectangular 4-pin connector and pre-terminated 370 mm cable — no cutting or splicing required.
• Installation position: confirm against the original sensor position on your vehicle. Upstream (pre-catalyst) and downstream (post-catalyst) sensors are not interchangeable on most applications — always compare connector shape, pin count, cable length and thread before ordering.
• Torque: tighten to the vehicle manufacturer's specification (typically 40–55 N.m on an M18 x 1.5 boss). Do not use silicone-based sealant anywhere near the sensor.

Cross-reference numbers are listed for identification only. Always verify physical fitment — connector shape, pin count, cable length and thread size — against your original part before installation.

Vehicle list is compiled from aftermarket catalogue cross-references and is indicative only. Please confirm by OE number and by comparing the original sensor before ordering.