- Is this a direct-fit or universal sensor?
- It is direct fit. The 4-pin flat connector plugs into the factory harness, so no wire splicing is needed.
- Which position does it fit?
- It is an upstream sensor for specific Toyota and Lexus engines. Check your engine code and sensor location against DENSO's application list before ordering.
- Does it come with a gasket?
- DENSO sensors typically ship with the sensor only. Reuse the old gasket only if it is intact, or fit a new one.
- Can I install it myself?
- Yes, with a slotted oxygen sensor socket and penetrating oil. The threaded body unscrews from the exhaust bung, and the connector clips in.
- Will it clear my check-engine light?
- It should clear oxygen-sensor codes once the repair is done and the codes are reset. If the light returns, check for exhaust leaks or wiring faults.
- How does it compare with a universal sensor?
- The universal type needs you to splice the old connector onto the new sensor. This one is plug-and-play and matches the original part's length and connector.
- Where is the DENSO 234-4503 Oxygen Sensor cheapest?
- At Amazon, for $24.99, 68% under what the other stores charge, as of our latest check.
- What do buyers say about the DENSO 234-4503 Oxygen Sensor?
- Buyers like: Fast shipping and quick delivery; Helpful service online and by phone; Orders arrive exactly as ordered.
- Where can I buy the DENSO 234-4503 Oxygen Sensor?
- 4 stores we checked sell it, including Team Vehicle, UpStart Auto Parts & More, Auto Parts and Stuff, Amazon.