Bosch 15308 Oxygen Sensor - Downstream or Downstream Left

Bosch Validated Oxygen Sensor for Dodge Applications

Bosch Validated Oxygen Sensor 15308 is a specific-fit, narrow-band heated oxygen sensor built for downstream monitoring on select Dodge vehicles. It provides precise air-fuel-ratio feedback to the ECU, helping maintain stable combustion control and lower emissions in normal driving and under changing load conditions.

Compatible With 2000-2006 Dodge Ram 1500, 2000-2003 Dodge Ram 2500, 2000-2003 Dodge Ram 3500, 2001-2003 Dodge Dakota, 2001-2003 Dodge Durango, and 2003-2006 Dodge Viper in the listed downstream positions.

Key Features

• Bosch Validated Oxygen Sensor, part number 15308
• Narrow-band heated oxygen sensor for downstream use
• Specific fit design with 4-wire harness and rectangular female connector
• Threaded mounting with 18 mm thread diameter and 22 mm hex size
• Wiring harness included; overall length 19.3 in
• Metal housing with high-temperature-resistant construction
• Interchange reference: 56041706AA

How Bosch Validated Oxygen Sensor Line Performs

The Bosch Validated Oxygen Sensor line builds on Bosch OE oxygen sensor development that began with the original thimble sensor and later advanced to planar narrowband designs. This product uses a ceramic sensing element, optimized heater control, and durable materials to deliver fast light-off and accurate lambda feedback for closed-loop operation. For drivers searching for a Bosch 15308 oxygen sensor for Dodge Ram, Dakota, Durango, or Viper downstream service, this OE-proven design supports consistent sensor response in demanding thermal and vibration environments.

What This Oxygen Sensor Helps Address

• Check engine light related to oxygen sensor performance
• Incorrect air-fuel ratio feedback to the ECU
• Rough combustion control during closed-loop operation
• Elevated emissions from a worn downstream sensor
• Slow sensor response after heat cycling or vibration exposure

Installation Notes and Tips

Verify the vehicle’s year, model, and downstream position before ordering. This Bosch 15308 oxygen sensor uses a threaded 18 mm mount and a 4-wire rectangular female connector, so connector style and harness routing should match the original sensor. Confirm the application notes for California emissions vehicles and the listed build-date note for 2000 Ram applications before installation.

Quality Assurance

Bosch backs this oxygen sensor with more than five decades of OE development and aftermarket supply experience. The design reflects Bosch’s validated sensor engineering for stable signal output, durable heater performance, and long service life in demanding exhaust conditions.