Walker Exhaust Oxygen Sensor Gasket P/N:31564
Seal the oxygen sensor's mounting flange against exhaust leaks with the AP Exhaust Oxygen Sensor Gasket, part number 9291. It fits many vehicles, among them the 1995-2004 Toyota Tacoma 2.4L / 2.7L / 3.4L, 1988-1997 Toyota Corolla 1.6L / 1.8L and 1990-2002 Toyota 4Runner 2.4L / 3.0L / 3.4L. See the "Vehicles it fits" section for the full list of applications and engines.
This O2 sensor gasket sits between the sensor flange and its mounting surface on the exhaust. It helps keep exhaust gas from escaping at the sensor joint. A leak at that point may let outside air in and can affect what the sensor reads, so a fresh gasket is a sensible step whenever the sensor is removed and reinstalled, for example when you refit the sensor on a 1995-2004 Toyota Tacoma 2.4L / 2.7L / 3.4L after exhaust work.
On the named vehicles, engine coverage includes L4-2.4L, L4-2.7L and V6-3.4L on the 1995-2004 Toyota Tacoma. On the 1988-1997 Toyota Corolla it covers L4-1.6L and L4-1.8L, and on the 1990-2002 Toyota 4Runner it covers L4-2.4L, V6-3.0L and V6-3.4L.
What does the AP Exhaust 9291 gasket do?
It seals the joint between the oxygen sensor's mounting flange and its mounting surface on the exhaust. This helps keep exhaust gas from leaking out at the sensor.
Is this the right gasket for a 1988-1997 Toyota Corolla 1.6L / 1.8L sensor?
Yes, the 9291 is listed for the 1988-1997 Toyota Corolla 1.6L / 1.8L. It also fits the 1995-2004 Toyota Tacoma 2.4L / 2.7L / 3.4L and the 1990-2002 Toyota 4Runner 2.4L / 3.0L / 3.4L.
What are the gasket's dimensions?
It has a 3/4 in inside diameter and a bolt-to-bolt length of 1-11/16.
How many gaskets does my vehicle use?
The listed applications use one gasket per application.
What are signs the oxygen sensor gasket may need replacing?
Signs include a ticking or puffing exhaust leak near the O2 sensor, an exhaust odor, or a flattened or damaged gasket found when the sensor is removed. A new gasket is commonly fitted whenever the sensor is reinstalled.
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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.