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The Denso 234-4169 is a heated four-wire oxygen sensor that replaces the upstream sensor on many Toyota and Lexus engines. It is a direct-fit part with an 11.42-inch lead and factory-style connector, so it installs without splicing. Denso supplies oxygen sensors to several automakers as original equipment, which is why owners often pick it over generic sensors. It suits drivers chasing a check-engine light, rough idle or failed emissions test who want an OE-type part rather than a universal splice-in sensor.
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Lowest price we've seen: $12.99 on Nov 12 at Amazon. Tracked across 1 store since Nov 12.
Buyers rate it highly and mostly report that it fixed check-engine codes and rough running. The common praise is that it plugs straight in and works like the original part.
Oxygen Sensor 4 Wire, Direct Fit, Heated, Wire Length: 11.42
