- Is the DENSO 234-4630 worth it over a cheaper universal sensor?
- For most Lexus and Toyota owners, yes. It plugs into the factory connector with no splicing, and the heated element and contamination-resistant coating match OE spec. Universal sensors cost less but often need wire splicing and can set codes if the connection is poor.
- Will it fit my car?
- It fits a long list of Lexus models, including GS300, GS430, IS300, LS430 and SC430 across many years, plus some Toyota applications. Check your exact year, model and engine before ordering, since trim levels can use different sensors.
- Is this a wideband or narrow-band sensor?
- It is narrow-band. It switches rich-to-lean around stoichiometric ratio and is used for fuel trim feedback, not for precise wide-range air-fuel measurement.
- What is in the box?
- One DENSO 234-4630 oxygen sensor with the attached 4-wire harness and connector, plus O-rings. No socket or other tools are included.
- When is it cheapest?
- As of November 3, 2026 the best new price was $37.68 at eBay across 5 stores. Prices on this part move with seller stock, so compare the listed stores before buying.
- Do I need a special socket to install it?
- Yes, an oxygen sensor socket with a slot for the wire is the usual tool. The threaded body is 0.708 in, and the harness is about 17.7 inches, so route it away from the exhaust before tightening.
- Where is the DENSO Auto Parts Oxygen Sensor 234-4630 cheapest?
- At eBay, for $37.68, 42% under what the other stores charge, as of our latest check.
- What do buyers say about the DENSO Auto Parts Oxygen Sensor 234-4630?
- Rated 5 out of 5 from 1 ratings. Buyers like: Fast shipping and exactly what was ordered; Easy to find the part needed and price beat the dealer; Great customer service when asking about fitment.
- Where can I buy the DENSO Auto Parts Oxygen Sensor 234-4630?
- 9 stores we checked sell it, including eBay, UpStart Auto Parts & More, Partzilla.com, Sixity Auto, Amazon.
