
DENSO Oxygen Sensor 234-4340
Best price now
15% under what the other stores charge
Compared across 14 stores. Prices are checked against each store and labelled with when.

15% under what the other stores charge
Compared across 14 stores. Prices are checked against each store and labelled with when.
It checks today's price at every store, compares the alternatives and answers in about a minute.
The DENSO 234-4340 is a direct-fit oxygen sensor built to original-equipment standards. It uses DENSO's aluminum oxide trap layer to shield the ceramic sensing element from silicone and lead contamination, which helps protect sensor life and keep fuel trim accurate. It suits owners replacing a failed upstream or downstream sensor on vehicles that take this part number. Against generic sensors, the OE-style connector and calibrated element are the main draw; DENSO is a common original supplier, so fit and signal behavior match the factory part.
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Lowest price we've seen: $120.26 on Nov 12 at Walmart. Tracked across 14 stores since Nov 12.
Owners of DENSO oxygen sensors generally report the part fits and plugs in like the original and clears O2-related codes. Complaints center on wrong fitment when the part number is mismatched and on sensors that fail early in rare cases.
The DENSO Oxygen Sensor 234-4340 is a replacement oxygen sensor. It is manufactured and tested to OE standards. Each component is built to match the original part for an exact replacement and a first-time fit.
It uses DENSO's aluminum oxide trap layer, which protects the ceramic element from silicone and lead poisoning. This protection is intended to support engine performance, fuel efficiency and longevity.
