DENSO Auto Parts Air / Fuel Ratio Sensor P/N:234-9018
DENSO Auto Parts 234-5742 right air / fuel ratio sensor for the 2016-2021 BMW M2 6-cylinder 3.0L and other vehicles reads the exhaust air-fuel ratio for the engine computer. This DENSO Auto Parts air fuel ratio sensor is a direct-fit part, manufactured and tested to the strictest OE standards.
A worn sensor can show up as a check engine light, rough running or poor fuel economy. An exhaust leak, a misfire or a damaged wiring harness can produce similar symptoms, so track down the actual cause before you buy.
The 2016-2021 BMW M2 6-cylinder 3.0L, the 2015-2020 BMW M4 6-cylinder 3.0L and the 2015-2019 BMW 640i Gran Coupe 6-cylinder 3.0L all take this sensor, along with many other BMW models. Driving a different one? Look up your year and model in the "Vehicles it fits" section.
Fit and size
Build and materials
This listing is one air / fuel ratio sensor for the upstream right position. The vehicle takes one there, and a sensor for the other side is a separate part.
This part cross-references / interchanges with the following part numbers:
Does the DENSO 234-5742 sensor fit the 2015-2020 BMW M4 6-cylinder 3.0L?
Yes. DENSO Auto Parts 234-5742 fits the 2015-2020 BMW M4 6-cylinder 3.0L, and the vehicle takes one for this upstream right position.
How long is the wire on this 5-wire air / fuel ratio sensor?
DENSO 234-5742 has an 18.50-inch wiring harness with five wires and a male connector.
What thread diameter does this air / fuel ratio sensor have?
The thread diameter is 0.711 inch.
What protects the ceramic element in this wide-band sensor?
A PTFE filter blocks contaminants, and dual-layer protection shields the ceramic element. The housing is laser-welded stainless, which resists corrosion.
Is this upstream right air / fuel ratio sensor sold as a single piece?
Yes. The listing is one sensor, and the vehicle takes one at this position. The sensor for the other side is ordered separately.
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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.