HomeEmission Control > SensorsBosch 15429 Oxygen Sensor - Downstream or Downstream Rear
Part #: 15429

Bosch 15429 Oxygen Sensor - Downstream or Downstream Rear

Bosch Validated Oxygen Sensor, Downstream
7 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Bosch Validated Oxygen Sensor, Downstream
Fitment: Mazda, 3, 3 Sport, and 6
Easy Returns — Return within 60 days for a full refund
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Overview of Bosch Validated Oxygen Sensor 15429

The Bosch Validated Oxygen Sensor 15429 is designed specifically for Mazda 3, Mazda 3 Sport, and Mazda 6 models. This narrow-band heated oxygen sensor ensures accurate emission control and optimal engine performance by monitoring exhaust gases effectively.

  • Specific fit for Mazda 3, 3 Sport, and 6 models
  • Narrow-band heated oxygen sensor type for precise readings
  • Threaded mounting type with 18 mm thread diameter and 22 mm hex size
  • Includes a 12.9-inch wiring harness with 4 wires and a square male connector
  • Durable metal housing finished in steel for long-lasting use
  • Standard replacement grade for reliable emission control

Detailed Product Features and Specifications

The Bosch Validated Oxygen Sensor 15429 features a narrow-band heated sensor that provides accurate oxygen level readings to the engine control unit. It comes with a 12.9-inch wiring harness and a 4-wire configuration, allowing seamless integration with the vehicle’s existing electrical system. The sensor is equipped with a male blade terminal and a square-shaped male connector, ensuring secure and proper connections. Its threaded mounting type with an 18 mm thread diameter and 22 mm hex size allows for straightforward installation. The sensor housing is made of durable metal with a steel finish, weighing approximately 0.29 pounds, which contributes to its robustness and longevity.

About the Bosch Validated Oxygen Sensor Product Line

The Bosch Validated Oxygen Sensor line is engineered to meet strict quality and performance standards, providing specific fitment solutions for various vehicle models. This product line focuses on delivering reliable emission control sensors that maintain engine efficiency and comply with environmental regulations. The 15429 sensor is part of this line, offering a standard replacement option that matches OEM specifications for Mazda vehicles.

Common Applications and Issues Addressed

  • Helps maintain proper air-fuel mixture for efficient combustion
  • Reduces harmful emissions by accurately monitoring exhaust gases
  • Prevents engine performance issues related to faulty oxygen sensors
  • Resolves check engine light triggers caused by sensor failure
  • Supports smooth engine idling and acceleration in Mazda 3 and Mazda 6 models

Installation Notes and Tips

When installing the Bosch Validated Oxygen Sensor 15429, ensure the vehicle is cool to avoid burns. Use a 22 mm oxygen sensor socket for removal and installation. Verify the wiring harness length of 12.9 inches is sufficient for your vehicle’s routing. The sensor’s threaded mounting type requires proper torque to avoid leaks or damage. Since this sensor is a specific fit for Mazda 3, 3 Sport, and 6 models, confirm compatibility before installation.

Quality Assurance and Warranty

This Bosch oxygen sensor is manufactured to meet OEM standards, ensuring reliable performance and durability. The product includes a wiring harness and is designed for standard replacement applications. While specific warranty details are not provided here, Bosch products typically come with manufacturer-backed quality assurance to support long-term use.

This part fits 7 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2013Mazda32.0LL4DownstreamBosch Validated Oxygen Sensor
2013Mazda3 Sport2.0LL4DownstreamBosch Validated Oxygen Sensor
2012Mazda32.0LL4DownstreamBosch Validated Oxygen Sensor
2012Mazda3 Sport2.0LL4DownstreamBosch Validated Oxygen Sensor
2005Mazda63.0LV6Downstream RearBosch Validated Oxygen Sensor
2004Mazda63.0LV6Downstream RearBosch Validated Oxygen Sensor
2003Mazda63.0LV6Downstream RearBosch Validated 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.