Keep the engine's fuel-trim feedback accurate with the Delphi Oxygen Sensor ES20213, a direct-fit replacement for a long list of Lexus, Scion, and Toyota applications. It installs in a rear (downstream) position — rear, rear-right, or rear-left depending on the vehicle — where it reports the oxygen content of the exhaust after the catalytic converter to the engine control module.
What it does:
- Exhaust-gas sensing: measures the oxygen level in the exhaust stream and sends a signal the ECM uses to adjust the air-fuel ratio.
- Downstream monitoring: in its rear position, it helps the ECM gauge catalytic-converter efficiency.
- Direct-fit design: intended to replace the original sensor on the listed applications.
Signs it may need replacing: an illuminated check engine light with an oxygen-sensor or catalyst-efficiency code, reduced fuel economy, or a failed emissions test — diagnose the cause before replacing, since these symptoms can have other sources. If a failed rear oxygen sensor is the cause, this ES20213 replaces it.
Fitment: 2002-2003 Toyota Camry, 2002-2003 Toyota Solara, 2004-2006 Lexus RX330, 2004-2013 Toyota Highlander, 2004-2015 Toyota Sienna, 2005-2014 Scion tC, 2006-2008 Lexus RX400H, 2007-2014 Lexus RX350, 2008-2015 Scion xB, 2009-2014 Lexus LS460, and 2009-2015 Toyota Venza. See the Buyer's Guide tab to confirm your vehicle.
Interchange: Manufacturer part number ES20213.
Frequently Asked Questions
What does the Delphi ES20213 oxygen sensor do?
It measures the oxygen content of the exhaust and sends a signal the ECM uses to trim the air-fuel ratio; in its rear position it also helps the ECM gauge catalytic-converter efficiency.
Where does this sensor install?
In a rear (downstream) position — rear, rear-right, or rear-left depending on the vehicle — after the catalytic converter. Check the Buyer's Guide to confirm the correct location for your application.
Which vehicles does it fit?
Applications include the 2002-2003 Toyota Camry and Solara, 2004-2015 Sienna, 2004-2013 Highlander, 2005-2014 Scion tC, 2008-2015 xB, several Lexus RX models, LS460, and 2009-2015 Venza. See the Buyer's Guide tab.
How do I know if the rear oxygen sensor needs replacing?
A check engine light with an oxygen-sensor or catalyst-efficiency code, lower fuel economy, or a failed emissions test can be signs. Diagnose the cause first, since other faults can produce the same symptoms.
Is ES20213 an OEM part?
No — Delphi is an OE-replacement (aftermarket) brand; ES20213 is the Delphi manufacturer part number designed as a direct-fit replacement for the listed applications.
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