10399754 Auto Oxygen Sensor 4-Wire Heated M18x1.5 For Opel Karl Chevrolet Cruze Trax MG Roewe

The 10399754 heated planar zirconia oxygen sensor is a direct-fit replacement for the Bosch 0 258 010 361 application used across the Opel, Chevrolet and SAIC (MG / Roewe) small petrol engine range. It measures residual oxygen in the exhaust gas and returns a 0.1–0.9 V switching signal to the ECU, enabling closed-loop fuel control at the stoichiometric air-fuel ratio.

The integrated heater brings the ceramic element 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 features a stainless-steel shell, a zirconia ceramic element with a vapour-deposited platinum electrode, and a spinel protective coating against solid particle erosion.

• Four wires, two circuits: two wires feed the internal heater; two carry the sensor signal and signal ground.
• Signal output: approximately 0.6–1.0 V under rich conditions, dropping towards 0.1 V under lean conditions; the ECU switches fuel trim as the signal crosses the 0.45 V threshold.
• Direct-fit: oval 4-pin plug and pre-terminated 220 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.