Bosch 16861 oxygen sensor for the 2008-2009 Chevrolet Equinox V6 3.6L and other vehicles measures the air-fuel ratio in the exhaust and sends it to the ECU. The ECU uses that signal for combustion control and to help reduce emissions.
- Premium Switching-Type Oxygen (O2) Sensors line, a narrow-band heated design
- Reaches operating temperature in under 10 seconds for quick closed-loop control at cold start
- Metal housing with an integrated heater element and TSP coating to resist vibration, corrosion and contamination
- Withstands exhaust streams up to 1,880°F
Quick facts
- Part: Bosch 16861 oxygen sensor
- Fits: 2008-2009 Chevrolet Equinox V6 3.6L and other vehicles
- Position: Upstream
- Material: Metal housing
- Condition: New
A worn oxygen sensor can show up as a check engine light, a rough idle or poorer fuel economy, though a leaking vacuum hose or a worn spark plug can be behind any of them, so find the cause first. This listing is one sensor, and the 2008-2009 Chevrolet Equinox V6 3.6L takes two upstream sensors.
Fits
It is listed for a wide range of Cadillac, Chevrolet, Pontiac and Suzuki models, including an oxygen sensor for the 2008-2011 Cadillac STS V6 3.6L and the 2008-2011 Cadillac CTS V6 3.6L. If your car is not named here, look for it in the "Vehicles it fits" section.
Specifications
Fit and size
- Position: Upstream
- Quantity per vehicle: 2
- Thread size: M18 - 1.5
- Length (sealing surface to end of connector): 14.3 in
Build and materials
- 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. A mounting bracket is not included.
Installation notes
- Conductive anti-seize is pre-applied to the threads.
- The direct-fit connector is made for quick installation.
Product information is for general reference and may contain errors. See our Disclaimer.
Frequently Asked Questions
Will this Chevy Equinox oxygen sensor fit a 2008-2009 Chevrolet Equinox V6 3.6L?
Yes. Bosch 16861 is listed for the 2008-2009 Chevrolet Equinox V6 3.6L as an upstream sensor, and that engine takes two of them.
Does this Cadillac CTS oxygen sensor suit the 2008-2011 Cadillac CTS V6 3.6L?
Yes. This upstream sensor is listed for the 2008-2011 Cadillac CTS V6 3.6L, and that car takes two of them.
How quickly does this BOSCH O2 sensor reach operating temperature?
It reaches operating temperature in under 10 seconds, so the ECU gets a usable signal quickly for closed-loop control, including on cold starts.
Is this Bosch premium oxygen sensor a wideband or a narrow-band type?
It is a narrow-band, switching-type heated sensor with an M18 - 1.5 thread and a 14.3 in length from the sealing surface to the end of the connector.
Does the Bosch 16861 come with a wiring harness or a mounting bracket?
Bosch 16861 includes its wiring harness. A mounting bracket is not included.
