Bosch Oxygen Sensor P/N:15741
Bosch 15270 oxygen sensor for the 2001-2003 Toyota Highlander 4-cylinder 2.4L reads the oxygen in the exhaust and reports the air-fuel ratio to the ECU. As a Bosch O2 sensor for the downstream position, it is a switching-type, narrow-band unit with an integrated heater.
A worn sensor can show up as a check engine light, poorer fuel economy or rough running. Before you replace the sensor, rule out an exhaust leak, damaged wiring or an engine misfire as the source of those signs.
This is a direct-fit downstream replacement, a 2001-2003 Toyota Highlander 4-cylinder 2.4L oxygen sensor. This listing is one sensor, and the 2001-2003 Toyota Highlander 4-cylinder 2.4L takes one.
Fit and size
Build and materials
One oxygen sensor with its wiring harness. A mounting bracket is not included.
Does the Bosch 15270 work as a 2003 Toyota Highlander O2 sensor with the 4-cylinder 2.4L?
Yes. Bosch 15270 fits the 2001-2003 Toyota Highlander 4-cylinder 2.4L, and the 2003 model year is inside that range.
Is this 2002 Toyota Highlander O2 sensor for the 4-cylinder 2.4L an upstream or downstream sensor?
Downstream. Bosch 15270 is the downstream sensor, and the 2001-2003 Toyota Highlander 4-cylinder 2.4L takes one.
Is this Bosch premium oxygen sensor heated?
Yes. This narrow-band oxygen sensor has an integrated heater element, and it reaches operating temperature in under 10 seconds.
Does the Bosch 15270 come with a wiring harness?
Yes. The sensor comes with its wiring harness. A mounting bracket is not included.
What thread size and hex does this downstream oxygen sensor use?
The thread size is M18 - 1.5 with a 22 mm hex. Length from the sealing surface to the end of the connector is 29.5 in.
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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.