Keep your engine's fuel trim reading accurate with the DENSO Auto Parts Oxygen Sensor 234-4169, a 4-wire, heated, narrow-band sensor offered as a direct-fit replacement for many Lexus and Toyota models — including the 1995-2000 LS400, 1996-2000 SC400, 1998-2000 GS400, 1998-2002 LX470, 2008-2016 LS600H, 2008-2011 & 2013 LX570, the 1998-2002 & 2008-2011 & 2013 Land Cruiser, 2000-2004 Tundra, 2001-2004 Sequoia, and 2010 4Runner (see the Buyer's Guide tab for the full list with engines).
The oxygen sensor measures the oxygen content of the exhaust and reports it to the ECU, which trims the air-fuel ratio. Signs this sensor may need replacing include a check engine light, rough running, or reduced fuel economy — if a failed sensor is the cause, this replaces it. Sold individually; some listed applications use two sensors, so order the quantity your engine requires. Made in the United States. Manufacturer part number 234-4169.
This part cross-references / interchanges with the following part numbers:
What does this oxygen sensor do?
It measures the oxygen content in the exhaust and signals the ECU, which adjusts the air-fuel ratio. This is a 4-wire, heated, narrow-band sensor.
Which vehicles does the 234-4169 fit?
It's a direct-fit for many Lexus and Toyota models such as the LS400, SC400, GS400, LX470/LX570, LS600H, Land Cruiser, Tundra, Sequoia, and 4Runner. Check the Buyer's Guide tab for years and engines.
How many sensors do I need?
It's sold individually. Some listed applications use two sensors and others use one, so order the quantity your specific engine requires.
What are signs this sensor may need replacing?
A check engine light, rough running, or reduced fuel economy can be signs. Diagnose the cause first, since these symptoms can have other sources; if a failed sensor is the cause, this replaces it.
Is it a heated sensor with a wiring harness?
Yes. It's a heated, 4-wire sensor with a male connector, threaded mounting, a 0.708 in thread diameter, and an 11.42 in wiring harness.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
