Is this a direct replacement for a factory sensor?

Yes. It is a direct-fit, five-wire heated sensor with a factory-style connector, so it plugs in without splicing on compatible vehicles.

How is it different from a universal oxygen sensor?

Universal sensors often need wire splicing and reuse of the old connector. This one is built as an exact replacement with the correct housing and wiring length.

Fit depends on the vehicle, engine and sensor position. Check that your car uses a five-wire wideband air/fuel sensor and cross-reference the part number before ordering.

The sensor itself with its attached wiring and connector. No tools or adapters are included.

Can I install it myself?

Many owners do. You need the right wrench or socket for the sensor bung, and the sensor threads into the exhaust like the original.

Will it fix a check-engine light for a lean or rich code?

It can if the code traces to a failed air/fuel sensor. Diagnose first, since vacuum leaks and fuel problems cause similar codes.

Where is the DENSO 234-5042 Air/Fuel Sensor cheapest?

At Amazon, for $62.99, 81% under what the other stores charge, as of our latest check.

Where can I buy the DENSO 234-5042 Air/Fuel Sensor?

15 stores we checked sell it, including Walmart, Amazon, eBay, Newparts.com, Partsgeek.com.

DENSO 234-5042 Air/Fuel Sensor

Best price now

$62.99at AmazonChecked 1 h ago

81% under what the other stores charge

Compared across 15 stores. Prices are checked against each store and labelled with when. Store links may earn us a commission. As an Amazon Associate, Deal.ai earns from qualifying purchases.

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