DENSO Auto Parts Oxygen Sensor P/N:234-4199
DENSO Auto Parts 234-4819 sensor for the 2008-2009 Chevrolet Equinox 3.6L and other vehicles is an upstream oxygen sensor that reads the oxygen in the exhaust so the engine computer can adjust the air-fuel ratio.
A check engine light, weaker fuel economy or a rough idle can mean the sensor is worn, but an exhaust leak ahead of it or a damaged wiring harness can be behind those signs too, so track down the cause first. These vehicles take two sensors and this listing is one, so order two if you're replacing them together.
Fitment includes the 2008-2011 Cadillac CTS V6-3.6L and the 2008-2011 Cadillac STS V6-3.6L, plus others. Enter your own car in the "Vehicles it fits" section to see whether it's covered.
Fit and size
Build and materials
This part cross-references / interchanges with the following part numbers:
Is this the right CTS sensor for a 2008-2011 Cadillac CTS V6-3.6L?
Yes. DENSO Auto Parts 234-4819 fits the 2008-2011 Cadillac CTS V6-3.6L. For any other vehicle, look up your car in the "Vehicles it fits" section.
Is this STS sensor a match for the 2008-2011 Cadillac STS V6-3.6L or the 2008-2009 Chevrolet Equinox V6-3.6L?
Yes. DENSO Auto Parts 234-4819 fits both the 2008-2011 Cadillac STS V6-3.6L and the 2008-2009 Chevrolet Equinox V6-3.6L.
Is the DENSO 234-4819 oxygen sensor narrow-band, and how many wires does it have?
Yes, DENSO Auto Parts 234-4819 is a heated narrow-band sensor with four wires and a female connector, and its wiring harness is 14.17 inches long.
What thread size does this upstream oxygen sensor have?
This upstream sensor has a threaded mount with a thread diameter of 0.708 inch.
What does the aluminum oxide trap layer on this DENSO sensor do?
The exclusive aluminum oxide trap layer is designed to protect the ceramic element from silicone and lead poisoning. A PTFE filter in the sensor also blocks contaminants.
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WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.