Downstream O2 Oxygen Sensor 234-4066 for Chevrolet Cobalt 2005-2010

Key features

• Downstream Oxygen Sensor Identification – This downstream O2 sensor 234-4066 is intended for the rear sensor position on compatible vehicle configurations. It provides a clear replacement reference for buyers searching for a downstream oxygen sensor or O2 sensor downstream. Confirm the required sensor position before ordering.
• Vehicle and Engine Compatibility – Designed for specified applications including for Chevrolet Cobalt 2.0L, 2.2L and 2.4L; for Chevrolet HHR 2.2L and 2.4L; for Pontiac G5 2.2L and 2.4L; and for Saturn Ion 2.0L, 2.2L and 2.4L. Available years vary by model and engine. Check the complete vehicle application details before purchase.
• Heated Four-Wire Design – This heated oxygen sensor features a four-wire configuration for compatible vehicle applications. Confirm the original sensor specifications and required connector configuration to determine whether this 234-4066 replacement matches your vehicle.
• Connector and Wiring Verification – Connector shape, terminal configuration and wire length are important when selecting an oxygen sensor replacement. Compare the product images and specifications with your original part before ordering. Do not rely on the vehicle model alone when confirming compatibility.
• Part Number Confirmation Before Purchase – Use 234-4066 as the primary reference when checking your original sensor. Reference number 12565680 is also listed in the supplied product information and should be used only after confirming the application. Verify vehicle year, engine size, sensor position and connector details to help avoid ordering an incompatible part.

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