Bosch 13139 Oxygen Sensor - Downstream, Downstream Left or Downstream Right

Reliable Oxygen Sensor for Dodge and Jeep Vehicles

The Bosch Engineered Oxygen Sensor 13139 is designed specifically for select Dodge and Jeep models, including the Dakota, Durango, and Grand Cherokee. This narrow-band heated oxygen sensor ensures accurate emissions control and optimal engine performance.

• Specific fit for Dodge Dakota, Jeep Durango, and Jeep Grand Cherokee
• Heated narrow-band oxygen sensor with 4-wire design
• Threaded mounting type with 18 mm thread diameter and 22 mm hex size
• Includes 15.6-inch wiring harness with female round connector
• Durable metal housing finished in steel for long-lasting use

About the Bosch Engineered Oxygen Sensor Line

The Bosch Engineered Oxygen Sensor line focuses on precision and reliability in emission control components. This product line offers sensors engineered to meet specific vehicle requirements, ensuring compatibility and performance. The 13139 oxygen sensor is part of this line, providing a standard replacement option with a heated narrow-band sensor designed for accurate air-fuel mixture readings.

Product Details and Specifications

This Bosch oxygen sensor features a 4-wire configuration with female pin terminals and a round connector shape, facilitating a secure and reliable electrical connection. The sensor’s overall length is 19.3 inches, with a wiring harness length of 15.6 inches and a sealing surface to connector length of 18.1 inches, allowing for proper fitment in the specified vehicles. The threaded mounting type with an 18 mm diameter and 22 mm hex size ensures straightforward installation. Constructed with a metal housing and steel finish, this sensor is built to withstand typical automotive conditions. The heated element within the sensor helps it reach operating temperature quickly, improving emissions control efficiency.

Common Applications and Issues Addressed

• Replacement for faulty or failing oxygen sensors in Dodge Dakota, Jeep Durango, and Grand Cherokee
• Helps resolve engine performance issues related to incorrect air-fuel mixture readings
• Reduces emissions by providing accurate data to the engine control unit
• Addresses check engine light triggers related to oxygen sensor faults
• Improves fuel efficiency by maintaining proper combustion control

Installation Notes and Tips

Ensure the vehicle is cool before beginning installation to avoid burns. Use a 22 mm oxygen sensor socket for removal and installation. Verify the sensor’s wiring harness length and connector type match the vehicle’s specifications. The threaded mounting requires proper torque to avoid damage—refer to the vehicle’s service manual for exact torque values. No mounting bracket is included, so use the existing mounting point on the vehicle.

Quality Assurance and Warranty

The Bosch Engineered Oxygen Sensor 13139 is manufactured to meet OEM standards for fit and function. It is a standard replacement grade sensor designed for durability and reliable performance. While specific warranty details are not provided here, Bosch products typically come with a limited warranty covering defects in materials and workmanship. Consult the product packaging or Bosch documentation for exact warranty terms.