HomeBosch 15146 Oxygen Sensor - Upstream
Part #: 15146

Bosch 15146 Oxygen Sensor - Upstream

Actual OE Oxygen Sensor, Upstream
2 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
Actual OE Oxygen Sensor, Upstream
Fitment: Cadillac, XLR
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Overview of Bosch Actual OE Oxygen Sensor 15146

The Bosch Actual OE Oxygen Sensor 15146 is designed specifically for Cadillac XLR models, providing precise air-fuel mixture readings to optimize engine performance and emissions control. This heated, wide-band oxygen sensor ensures accurate data transmission for efficient vehicle operation.

  • Heated oxygen sensor for faster response times
  • Specific fit for Cadillac XLR vehicles
  • Wide-band sensor type for accurate air-fuel ratio measurement
  • 36.8-inch wiring harness length with 5 wires
  • Threaded mounting type with 18 mm thread diameter
  • Blade terminal type with male connector and terminal gender
  • Durable metal housing with steel finish
  • Rectangle-shaped male connector for secure connection
  • Standard replacement grade for reliable performance
  • Hex size of 22 mm for installation

About the Bosch Actual OE Oxygen Sensor Product Line

The Bosch Actual OE Oxygen Sensor line is engineered to meet original equipment specifications, ensuring compatibility and performance that align with factory standards. This product line focuses on delivering precise sensor readings and durability, making it suitable for direct replacement in specific vehicle applications such as the Cadillac XLR. The 15146 part number represents a standard replacement sensor within this line, designed to maintain emission control system integrity.

Detailed Product Description

This Bosch oxygen sensor features a heated design that accelerates sensor activation, reducing warm-up time and improving emission control efficiency. The wide-band sensor type provides a broad measurement range for accurate air-fuel ratio monitoring, essential for modern engine management systems. With a 36.8-inch wiring harness and a 5-wire configuration, the sensor ensures proper connectivity and signal transmission. The threaded mounting with an 18 mm diameter and 22 mm hex size allows for straightforward installation. The sensor’s metal housing and steel finish contribute to its durability under harsh engine conditions. The blade terminal and rectangle-shaped male connector provide secure electrical connections, minimizing the risk of signal loss or corrosion.

Common Applications and Issues Addressed

  • Restores accurate oxygen sensing for Cadillac XLR emission systems
  • Resolves engine performance issues related to faulty oxygen sensors
  • Helps correct rough idling and poor fuel economy caused by sensor failure
  • Reduces emissions by ensuring proper air-fuel mixture readings
  • Prevents check engine light triggers related to oxygen sensor faults

Installation Notes and Tips

  • Ensure vehicle compatibility with Cadillac XLR models before installation
  • Use a 22 mm oxygen sensor socket for removal and installation
  • Do not overtighten; follow manufacturer torque specifications for the 18 mm threaded sensor
  • Inspect wiring harness and connectors for damage before installation
  • Allow the engine to cool before replacing the sensor to avoid burns

Quality Assurance and Warranty

The Bosch Actual OE Oxygen Sensor 15146 is manufactured to meet stringent quality standards, ensuring reliable performance and durability. As a standard replacement part, it is engineered to match OEM specifications for fit and function. While specific warranty details are not provided here, Bosch products typically come with manufacturer-backed warranties to protect against defects in materials and workmanship.

This part fits 2 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2006CadillacXLR4.6LV8UpstreamAvailable while stocks last; Actual OE Oxygen Sensor
2005CadillacXLR4.6LV8UpstreamAvailable while stocks last; Late Production; 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.