Bosch 15297 Oxygen Sensor - Downstream

Bosch Oxygen Sensor for Chrysler and Dodge

Bosch Engineered Oxygen Sensor 15297 is a narrow-band heated O2 sensor built for precise air-fuel ratio feedback to the ECU. It supports stable combustion control and emissions management for select Chrysler Sebring and Dodge Stratus applications, including downstream replacement needs.

Key Features

• Specific-fit Bosch oxygen sensor for direct application matching
• Narrow-band heated design for faster closed-loop operation
• Threaded mounting with 18 mm thread diameter and 22 mm hex size
• 4-wire configuration with round female connector and pin terminals
• Wiring harness included with 15 in sealing-surface-to-connector length
• Metal housing and high-temperature-resistant construction for demanding exhaust conditions
• Bosch Engineered Oxygen Sensor line draws on Bosch OE development and narrowband sensor design evolution

Detailed Description

Bosch part number 15297 is a standard replacement oxygen sensor for downstream use on select 2001-2004 Chrysler Sebring and 2001-2004 Dodge Stratus models. It measures exhaust oxygen content and sends accurate feedback to the engine control unit, helping maintain proper fuel delivery and emissions control. This Bosch Engineered Oxygen Sensor uses a heated narrow-band design with optimized heater control and durable ceramic sensing elements for consistent operation under thermal and vibration load.

This part cross-references Chrysler 4606135AD for the same application.

What It Helps Address

• Check engine light related to oxygen sensor performance
• Rich or lean fuel mixture conditions
• Slow closed-loop response after startup
• Emissions test failures tied to downstream sensor readings
• Unstable combustion control caused by inaccurate exhaust feedback

Installation Notes and Tips

Fits 2004 Chrysler Sebring, downstream. Fits 2004 Dodge Stratus, downstream. Fits 2001-2003 Chrysler Sebring, downstream. Fits 2001-2003 Dodge Stratus, downstream. Verify the downstream sensor location, connector style, and harness length before installation. The sensor uses an 18 mm thread size and a threaded mount, so proper removal and installation tools are recommended to avoid damage to the exhaust bung or sensor body.

Quality Assurance

Bosch has decades of OE oxygen sensor development behind this replacement part line, with designs based on the company’s original sensor work and later planar narrowband advancements. Bosch 15297 is built to OE-proven standards for accurate signal delivery and durable service in exhaust environments.