Keep your engine's air-fuel ratio dialed in with the NTK Oxygen Sensor 24579. It measures the oxygen content in the exhaust stream and sends a signal to the engine control unit, which uses that reading to adjust the air-fuel ratio for cleaner, more efficient combustion. It fits as a direct-fit replacement for a range of Lexus, Toyota, Pontiac, and Scion applications (full list below).
Signs it may need replacing: a check engine light, reduced fuel economy, rough idle, or a failed emissions test can point to a worn oxygen sensor, but these symptoms can have other causes, so diagnose before replacing. If a failed oxygen sensor is the cause, the 24579 restores proper oxygen feedback to the ECU.
Fitment: 1992-1996 Lexus ES300, 1993-1997 Lexus GS300, 2008-2011 Lexus GS460, 2003-2006 Pontiac Vibe, 2008-2014 Scion xD, 1992-1996 Toyota Camry, 2000-2002 Toyota Echo, 2003-2006 Toyota Matrix, 2001-2003 Toyota Prius, 1998 Toyota Supra, and 2006-2011 Toyota Yaris. See the Buyer's Guide tab for the complete list.
Manufacturer part number 24579.
What does the NTK 24579 oxygen sensor do?
It measures the oxygen content in the exhaust and sends a signal to the ECU, which adjusts the air-fuel ratio for more efficient combustion.
Which vehicles does the NTK 24579 fit?
It's a direct-fit replacement for applications including the 1992-1996 Lexus ES300, 1993-1997 Lexus GS300, 2003-2006 Pontiac Vibe, and 2006-2011 Toyota Yaris. See the Buyer's Guide tab for the full list.
Is this an upstream or downstream sensor?
The 24579 is cataloged for upstream and downstream positions (including downstream left and right) depending on the application; confirm the correct position for your vehicle in the Buyer's Guide.
What are signs my oxygen sensor may need replacing?
A check engine light, reduced fuel economy, or rough running may indicate a worn oxygen sensor, but these can have other causes, so diagnose the cause before replacing.
What is the manufacturer part number?
The manufacturer part number is 24579.
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.
