Downstream Oxygen Sensor 234-4400 For Toyota Prius, Highlander & Lexus CT200h, RX450h (4-Wire)
About this item
Got that pesky check engine light on?
If your Toyota or Lexus is throwing a code for the downstream oxygen sensor, this is the part you need.
This CNPAPC sensor is a direct, plug-and-play replacement for the factory unit.
It's a brand new, 4-wire sensor that matches the OE specifications perfectly.
It's designed to fit a bunch of popular models, including the Toyota Prius (with the 1.8L engine), the Highlander (V6 3.5L), and the Lexus CT200h and RX450h.
It's a downstream sensor, so it monitors the catalytic converter's efficiency.
The main part number is 234-4400, but it also crosses over with a ton of others like 250-24870, 350-34074, and the OEM Toyota number 89465-47080.
Swapping this out can help restore your fuel economy and get your emissions back in check.
Just make sure your ride has one of those compatible engines, and you'll be good to go.
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