Is the DENSO 234-4345 a direct fit?

Yes. It is built as a direct-fit sensor with the connector and wire length for the vehicles it is listed to fit, so no splicing is needed.

How do I know it fits my car?

Check the part number 234-4345 against your vehicle's listing or your old sensor's number. DENSO publishes a fitment guide by make, model and year.

Upstream or downstream sensor?

Fitment depends on the vehicle. Confirm the position on your car's parts listing before ordering, since the same engine can use different sensors before and after the catalytic converter.

Do I need a special socket?

An oxygen sensor socket with a slot for the wire makes removal and installation easier. It is not included with the sensor.

Can I replace it myself?

On most cars the sensor unscrews from the exhaust and plugs into a harness connector. Soak the threads first on an older car, and expect a stiff removal.

Where is the DENSO Oxygen Sensor 234-4345 cheapest?

At Amazon, for $37.99, 16% under what the other stores charge, as of our latest check.

Where can I buy the DENSO Oxygen Sensor 234-4345?

16 stores we checked sell it, including Amazon, Walmart, Newparts.com, eBay, Partzilla.com.

DENSO Oxygen Sensor 234-4345

Best price now

$37.99at AmazonChecked 1 h ago

16% 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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