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Part #: 16449

Bosch 16449 Oxygen Sensor

Actual OE Oxygen Sensor, Upstream, Downstream Right, Downstream Left, and Downstream
51 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Actual OE Oxygen Sensor, Upstream, Downstream Right, Downstream Left, and Downstream
Fitment: Buick, Cadillac, Chevrolet, and GMC, Acadia, Acadia Limited, ATS, Camaro, Caprice, CTS, Enclave, and Traverse
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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.

BrandBosch
Part Number16449
PositionActual OE Oxygen Sensor, Upstream, Downstream Right, Downstream Left, and Downstream
Wiring Harness Length8
Terminal TypePin
Universal Or Specific FitSpecific
Wire Quantity4
Grade TypeStandard replacement
Connector ShapeSquare
Terminal Quantity4
Connector GenderMale
Terminal GenderFemale
Overall Length11.3
Mounting TypeThreaded
Automotive Color / FinishSteel
Automotive Item Weight (lbs)0.440925 lb
Heated (Oxygen Sensor)Yes
Hex Size (Oxygen Sensor)22 mm
Housing MaterialMetal
Length (Sealing Surface To End Of Connector)10.2 in
Mounting Bracket IncludedNo
Oxygen Sensor TypeNarrow-band heated
Sensor TypeNarrow-band
Thread Diameter (Oxygen Sensor)18 mm
Thread Size18
Wiring Harness IncludedYes

This part fits 51 vehicles. Search below:

YearMakeModelTransmissionLitersCylindersFuel TypePositionNotes
2019CadillacATS3.6LV6DownstreamActual OE Oxygen Sensor
2019CadillacCTS3.6LV6DownstreamActual OE Oxygen Sensor
2018CadillacATS3.6LV6DownstreamActual OE Oxygen Sensor
2018CadillacCTS3.6LV6DownstreamActual OE Oxygen Sensor
2017BuickEnclave3.6LV6UpstreamActual OE Oxygen Sensor
2017CadillacATS3.6LV6DownstreamActual OE Oxygen Sensor
2017CadillacCTS3.6LV6DownstreamActual OE Oxygen Sensor
2017ChevroletCaprice3.6LV6UpstreamActual OE Oxygen Sensor
2017ChevroletCaprice3.6LV6DownstreamActual OE Oxygen Sensor
2017ChevroletTraverse3.6LV6UpstreamActual OE Oxygen Sensor
2017GMCAcadia Limited3.6LV6UpstreamActual OE Oxygen Sensor
2016BuickEnclave3.6LV6UpstreamActual OE Oxygen Sensor
2016CadillacATS3.6LV6DownstreamActual OE Oxygen Sensor
2016CadillacCTS3.6LV6DownstreamActual OE Oxygen Sensor
2016ChevroletCaprice3.6LV6UpstreamActual OE Oxygen Sensor
2016ChevroletCaprice3.6LV6DownstreamActual OE Oxygen Sensor
2016ChevroletTraverse3.6LV6UpstreamActual OE Oxygen Sensor
2016GMCAcadia3.6LV6UpstreamActual OE Oxygen Sensor
2015BuickEnclave3.6LV6UpstreamActual OE Oxygen Sensor
2015CadillacATS3.6LV6DownstreamActual OE Oxygen Sensor
2015CadillacCTS3.6LV6DownstreamActual OE Oxygen Sensor
2015ChevroletCaprice3.6LV6UpstreamActual OE Oxygen Sensor
2015ChevroletCaprice3.6LV6DownstreamActual OE Oxygen Sensor
2015ChevroletTraverse3.6LV6UpstreamActual OE Oxygen Sensor
2015GMCAcadia3.6LV6UpstreamActual OE Oxygen Sensor
2014BuickEnclave3.6LV6UpstreamActual OE Oxygen Sensor
2014CadillacATS3.6LV6DownstreamActual OE Oxygen Sensor
2014CadillacCTS3.6LV6FLEXDownstream RightActual OE Oxygen Sensor
2014CadillacCTS3.6LV6GASDownstreamActual OE Oxygen Sensor
2014CadillacCTS3.0LV6DownstreamActual OE Oxygen Sensor
2014ChevroletCaprice3.6LV6UpstreamActual OE Oxygen Sensor
2014ChevroletCaprice3.6LV6DownstreamActual OE Oxygen Sensor
2014ChevroletTraverse3.6LV6UpstreamActual OE Oxygen Sensor
2014GMCAcadia3.6LV6UpstreamActual OE Oxygen Sensor
2013BuickEnclave3.6LV6UpstreamActual OE Oxygen Sensor
2013CadillacATS3.6LV6DownstreamActual OE Oxygen Sensor
2013CadillacCTS3.6LV6Downstream RightActual OE Oxygen Sensor
2013CadillacCTS3.0LV6Downstream RightActual OE Oxygen Sensor
2013ChevroletCaprice3.6LV6DownstreamActual OE Oxygen Sensor
2013ChevroletCaprice3.6LV6UpstreamActual OE Oxygen Sensor
2013ChevroletTraverse3.6LV6UpstreamActual OE Oxygen Sensor
2013GMCAcadia3.6LV6UpstreamActual OE Oxygen Sensor
2012BuickEnclave3.6LV6UpstreamActual OE Oxygen Sensor
2012CadillacCTS3.6LV6Downstream RightActual OE Oxygen Sensor
2012CadillacCTS3.0LV6Downstream RightActual OE Oxygen Sensor
2012ChevroletCamaro3.6LV6Downstream RightActual OE Oxygen Sensor
2012ChevroletCamaroManual3.6LV6Downstream LeftActual OE Oxygen Sensor
2012ChevroletCaprice3.6LV6DownstreamActual OE Oxygen Sensor
2012ChevroletCaprice3.6LV6UpstreamActual OE Oxygen Sensor
2012ChevroletTraverse3.6LV6UpstreamActual OE Oxygen Sensor
2012GMCAcadia3.6LV6UpstreamActual 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:

12634064

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.