OE Quality
60-Day Returns

Bosch 16449 Oxygen Sensor
Reliable Oxygen Sensor for Buick, Cadillac, Chevrolet, and GMC Vehicles
The Bosch Actual OE Oxygen Sensor 16449 is designed to provide accurate air-fuel mixture readings for specific vehicle models including Buick Acadia, Cadillac ATS, Chevrolet Camaro, and GMC Enclave. This narrow-band heated oxygen sensor ensures optimal engine performance and emission control.
- Wiring harness length: 8 inches for precise fitment
- Threaded mounting type with 18 mm thread diameter and 22 mm hex size
- Heated narrow-band sensor for faster response times
- Connector: male with square shape and 4-pin terminal configuration
- Overall length of 11.3 inches with 4-wire quantity
- Durable metal housing finished in steel
- Specific fit for Buick, Cadillac, Chevrolet, and GMC models
About the Bosch Actual OE Oxygen Sensor Product Line
The Bosch Actual OE Oxygen Sensor line is engineered to meet original equipment specifications, providing a direct replacement for factory-installed sensors. This ensures compatibility and reliable performance in emission control systems. The 16449 part number belongs to this line, offering a standard replacement grade with a heated narrow-band sensor type designed for specific vehicle applications.
Detailed Product Description
The Bosch 16449 oxygen sensor features a threaded mounting design with an 18 mm thread diameter and a 22 mm hex size for easy installation. It includes a heated narrow-band sensor element that improves sensor response time and accuracy in monitoring exhaust gases. The sensor comes with a wiring harness length of 8 inches and an overall length of 11.3 inches, making it suitable for precise fitment in select Buick Acadia, Cadillac ATS, Chevrolet Camaro, and GMC Enclave models. The connector is male with a square shape and four pins, matching the factory wiring harness for a seamless connection. Constructed with a durable metal housing finished in steel, this sensor is built to withstand harsh engine environments.
Common Applications and Issues Addressed
- Restores accurate air-fuel ratio readings for improved fuel efficiency
- Helps reduce vehicle emissions by ensuring proper catalytic converter function
- Resolves engine performance issues such as rough idling or hesitation
- Prevents check engine light triggers related to oxygen sensor faults
- Maintains compliance with emission regulations for Buick, Cadillac, Chevrolet, and GMC vehicles
Installation Notes and Tips
When installing the Bosch 16449 oxygen sensor, ensure the threaded mounting hole is clean and free of debris. Use a 22 mm wrench or socket for proper tightening without over-torquing. Verify the wiring harness connector matches the factory harness to avoid connection issues. This sensor is a specific fit for select Buick Acadia, Cadillac ATS, Chevrolet Camaro, and GMC Enclave models, so confirm vehicle compatibility before installation.
Quality Assurance and Warranty
Bosch oxygen sensors are manufactured to meet strict quality standards and original equipment specifications. The Actual OE Oxygen Sensor 16449 is a standard replacement grade part designed for reliable performance and durability. While specific warranty details are not provided here, Bosch typically offers coverage against manufacturing defects to ensure customer confidence in their products.
| Brand | Bosch |
|---|---|
| Part Number | 16449 |
| Position | Actual OE Oxygen Sensor, Upstream, Downstream Right, Downstream Left, and Downstream |
| Wiring Harness Length | 8 |
| Terminal Type | Pin |
| Universal Or Specific Fit | Specific |
| Wire Quantity | 4 |
| Grade Type | Standard replacement |
| Connector Shape | Square |
| Terminal Quantity | 4 |
| Connector Gender | Male |
| Terminal Gender | Female |
| Overall Length | 11.3 |
| Mounting Type | Threaded |
| Automotive Color / Finish | Steel |
| Automotive Item Weight (lbs) | 0.440925 lb |
| Heated (Oxygen Sensor) | Yes |
| Hex Size (Oxygen Sensor) | 22 mm |
| Housing Material | Metal |
| Length (Sealing Surface To End Of Connector) | 10.2 in |
| Mounting Bracket Included | No |
| Oxygen Sensor Type | Narrow-band heated |
| Sensor Type | Narrow-band |
| Thread Diameter (Oxygen Sensor) | 18 mm |
| Thread Size | 18 |
| Wiring Harness Included | Yes |
This part fits 51 vehicles. Search below:
| Year | Make | Model | Transmission | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|---|
| 2019 | Cadillac | ATS | 3.6L | V6 | Downstream | Actual OE Oxygen Sensor | ||
| 2019 | Cadillac | CTS | 3.6L | V6 | Downstream | Actual OE Oxygen Sensor | ||
| 2018 | Cadillac | ATS | 3.6L | V6 | Downstream | Actual OE Oxygen Sensor | ||
| 2018 | Cadillac | CTS | 3.6L | V6 | Downstream | Actual OE Oxygen Sensor | ||
| 2017 | Buick | Enclave | 3.6L | V6 | Upstream | Actual OE Oxygen Sensor | ||
| 2017 | Cadillac | ATS | 3.6L | V6 | Downstream | Actual OE Oxygen Sensor | ||
| 2017 | Cadillac | CTS | 3.6L | V6 | Downstream | Actual OE Oxygen Sensor | ||
| 2017 | Chevrolet | Caprice | 3.6L | V6 | Upstream | Actual OE Oxygen Sensor | ||
| 2017 | Chevrolet | Caprice | 3.6L | V6 | Downstream | Actual OE Oxygen Sensor | ||
| 2017 | Chevrolet | Traverse | 3.6L | V6 | Upstream | Actual OE Oxygen Sensor | ||
| 2017 | GMC | Acadia Limited | 3.6L | V6 | Upstream | Actual OE Oxygen Sensor | ||
| 2016 | Buick | Enclave | 3.6L | V6 | Upstream | Actual OE Oxygen Sensor | ||
| 2016 | Cadillac | ATS | 3.6L | V6 | Downstream | Actual OE Oxygen Sensor | ||
| 2016 | Cadillac | CTS | 3.6L | V6 | Downstream | Actual OE Oxygen Sensor | ||
| 2016 | Chevrolet | Caprice | 3.6L | V6 | Upstream | Actual OE Oxygen Sensor | ||
| 2016 | Chevrolet | Caprice | 3.6L | V6 | Downstream | Actual OE Oxygen Sensor | ||
| 2016 | Chevrolet | Traverse | 3.6L | V6 | Upstream | Actual OE Oxygen Sensor | ||
| 2016 | GMC | Acadia | 3.6L | V6 | Upstream | Actual OE Oxygen Sensor | ||
| 2015 | Buick | Enclave | 3.6L | V6 | Upstream | Actual OE Oxygen Sensor | ||
| 2015 | Cadillac | ATS | 3.6L | V6 | Downstream | Actual OE Oxygen Sensor | ||
| 2015 | Cadillac | CTS | 3.6L | V6 | Downstream | Actual OE Oxygen Sensor | ||
| 2015 | Chevrolet | Caprice | 3.6L | V6 | Upstream | Actual OE Oxygen Sensor | ||
| 2015 | Chevrolet | Caprice | 3.6L | V6 | Downstream | Actual OE Oxygen Sensor | ||
| 2015 | Chevrolet | Traverse | 3.6L | V6 | Upstream | Actual OE Oxygen Sensor | ||
| 2015 | GMC | Acadia | 3.6L | V6 | Upstream | Actual OE Oxygen Sensor | ||
| 2014 | Buick | Enclave | 3.6L | V6 | Upstream | Actual OE Oxygen Sensor | ||
| 2014 | Cadillac | ATS | 3.6L | V6 | Downstream | Actual OE Oxygen Sensor | ||
| 2014 | Cadillac | CTS | 3.6L | V6 | FLEX | Downstream Right | Actual OE Oxygen Sensor | |
| 2014 | Cadillac | CTS | 3.6L | V6 | GAS | Downstream | Actual OE Oxygen Sensor | |
| 2014 | Cadillac | CTS | 3.0L | V6 | Downstream | Actual OE Oxygen Sensor | ||
| 2014 | Chevrolet | Caprice | 3.6L | V6 | Upstream | Actual OE Oxygen Sensor | ||
| 2014 | Chevrolet | Caprice | 3.6L | V6 | Downstream | Actual OE Oxygen Sensor | ||
| 2014 | Chevrolet | Traverse | 3.6L | V6 | Upstream | Actual OE Oxygen Sensor | ||
| 2014 | GMC | Acadia | 3.6L | V6 | Upstream | Actual OE Oxygen Sensor | ||
| 2013 | Buick | Enclave | 3.6L | V6 | Upstream | Actual OE Oxygen Sensor | ||
| 2013 | Cadillac | ATS | 3.6L | V6 | Downstream | Actual OE Oxygen Sensor | ||
| 2013 | Cadillac | CTS | 3.6L | V6 | Downstream Right | Actual OE Oxygen Sensor | ||
| 2013 | Cadillac | CTS | 3.0L | V6 | Downstream Right | Actual OE Oxygen Sensor | ||
| 2013 | Chevrolet | Caprice | 3.6L | V6 | Downstream | Actual OE Oxygen Sensor | ||
| 2013 | Chevrolet | Caprice | 3.6L | V6 | Upstream | Actual OE Oxygen Sensor | ||
| 2013 | Chevrolet | Traverse | 3.6L | V6 | Upstream | Actual OE Oxygen Sensor | ||
| 2013 | GMC | Acadia | 3.6L | V6 | Upstream | Actual OE Oxygen Sensor | ||
| 2012 | Buick | Enclave | 3.6L | V6 | Upstream | Actual OE Oxygen Sensor | ||
| 2012 | Cadillac | CTS | 3.6L | V6 | Downstream Right | Actual OE Oxygen Sensor | ||
| 2012 | Cadillac | CTS | 3.0L | V6 | Downstream Right | Actual OE Oxygen Sensor | ||
| 2012 | Chevrolet | Camaro | 3.6L | V6 | Downstream Right | Actual OE Oxygen Sensor | ||
| 2012 | Chevrolet | Camaro | Manual | 3.6L | V6 | Downstream Left | Actual OE Oxygen Sensor | |
| 2012 | Chevrolet | Caprice | 3.6L | V6 | Downstream | Actual OE Oxygen Sensor | ||
| 2012 | Chevrolet | Caprice | 3.6L | V6 | Upstream | Actual OE Oxygen Sensor | ||
| 2012 | Chevrolet | Traverse | 3.6L | V6 | Upstream | Actual OE Oxygen Sensor | ||
| 2012 | GMC | Acadia | 3.6L | V6 | Upstream | Actual OE Oxygen Sensor |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.