DENSO Auto Parts Oxygen Sensor P/N:234-4255
DENSO 234-4992 oxygen sensor for the 2015 Volkswagen Golf 4-cylinder 2.0L, the 2015-2018 Golf 4-cylinder 1.8L and other vehicles measures the oxygen in the exhaust and reports it to the engine computer. It is a direct-fit downstream sensor, sold as a single piece.
A check engine light, poorer fuel economy or rough running can mean a downstream oxygen sensor is worn, though an exhaust leak or damaged wiring can be behind the same signs.
The 2018-2023 Volkswagen Atlas 4-cylinder 2.0L and the 2020-2023 Volkswagen Atlas Cross Sport 4-cylinder 2.0L take this sensor, one per vehicle, and so do many other vehicles. If your car is not named here, look it up in the "Vehicles it fits" section.
Fit and size
Build and materials
This part cross-references / interchanges with the following part numbers:
Is this a VW Golf oxygen sensor for the 2015-2018 Golf 4-cylinder 1.8L?
Yes. DENSO 234-4992 fits the 2015-2018 Volkswagen Golf 4-cylinder 1.8L and the 2015 Golf 4-cylinder 2.0L, one sensor per vehicle, in the downstream position.
What thread size does the DENSO 234-4992 oxygen sensor have?
The thread diameter is 0.708 inch and the mounting type is threaded, so the sensor screws into its port.
What protects the ceramic element inside this oxygen sensor?
A PTFE filter blocks contaminants and a dual-layer protection shields the ceramic element. An aluminum oxide trap layer guards it against silicone and lead poisoning.
What can a failing downstream oxygen sensor cause?
A worn sensor can bring on a check engine light or poorer fuel economy. A shop can scan the codes and test the sensor, since that test needs the engine running.
How long is the wiring harness on the DENSO 234-4992 oxygen sensor?
The wiring harness is 29.92 inches long. This DENSO oxygen sensor has 4 wires and a male connector.
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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.