Bosch 15569 left oxygen sensor for the 2004-2006 Toyota Sienna V6 3.3L and other vehicles measures the air-fuel ratio in the exhaust and sends it to the ECU. The ECU uses that signal to help keep combustion stable and reduce emissions.
- Heated Switching-Type narrow-band design with an integrated heater element
- Reaches operating temperature in under 10 seconds for quick closed-loop control
- Built to withstand exhaust streams up to 1,880°F
- TSP coating to resist vibration, corrosion and contamination
Quick facts
- Part: Bosch 15569 oxygen sensor
- Fits: 2004-2006 Toyota Sienna V6 3.3L and other vehicles
- Position: Downstream, downstream left
- Material: Metal
- Condition: New
A check engine light, a rougher idle or poorer fuel economy can mean an oxygen sensor is slow or failing, but those symptoms have other possible sources, so track down the cause before swapping the sensor. A safe first look, with the engine off and cool, is the sensor's wiring and connector for chafing, melting or damage.
Fits
The 2004-2006 Toyota Sienna V6 3.3L, the 2004-2007 Toyota Highlander V6 3.3L and the 2017-2018 Toyota Corolla iM 4-cylinder 1.8L all take this sensor, and so do more Toyota, Lexus and Scion models. Driving something else? Look up your year and engine in the "Vehicles it fits" section before you order.
Specifications
Fit and size
- Position: Downstream, downstream left
- Quantity per vehicle: 1
- Thread size: M18 - 1.5
- Hex size: 22 mm
- Length (sealing surface to end of connector): 13.8 in
Build and materials
- Sensor type: Narrow-band, heated
- Housing material: Metal
- Condition: New
- Warranty: Bosch 1-year, unlimited-mileage warranty for non-commercial passenger cars and light trucks
In the box
One oxygen sensor with its wiring harness; the left downstream position takes one. A mounting bracket is not included, and an old one may not be reusable.
Installation notes
- The sensor has direct-fit connectors and conductive anti-seize already applied to the threads, for quick installation.
Frequently Asked Questions
Is Bosch 15569 the right oxygen sensor for a 2004-2006 Toyota Sienna V6 3.3L?
Yes. Bosch 15569 is listed for the 2004-2006 Toyota Sienna V6 3.3L in the downstream left position, and that position takes one sensor.
Does Bosch 15569 work as an oxygen sensor for the 2004-2007 Toyota Highlander V6 3.3L?
Yes. Bosch 15569 is also listed for the 2004-2007 Toyota Highlander V6 3.3L, with one sensor for this position.
What thread and wrench size does this Bosch O2 sensor have?
Bosch 15569 has an M18 - 1.5 thread and a 22 mm hex. It measures 13.8 in from the sealing surface to the end of the connector.
Does the Bosch premium oxygen sensor 15569 include a mounting bracket?
No, a mounting bracket is not included, and an old one may not be reusable. The sensor comes with its wiring harness.
Does this oxygen sensor come with anti-seize already on the threads?
Yes. The threads already carry conductive anti-seize, and the connectors are direct-fit.
