Bosch 13796 Oxygen Sensor - Downstream

Bosch Oxygen Sensor for Downstream Emissions Control

Bosch 13796 is a specific-fit, narrow-band heated oxygen sensor built for downstream emissions monitoring and stable air-fuel feedback. It uses a threaded metal housing, a 4-wire harness, and a rectangular female connector to support accurate ECU signal input under demanding heat and vibration.

Compatible With 1999-2005 Mitsubishi Galant, 2000-2005 Mitsubishi Eclipse, 2001-2005 Chrysler Sebring, and 2001-2005 Dodge Stratus in downstream positions, Bosch 13796 is a direct replacement for vehicles that need precise oxygen sensor response and reliable closed-loop operation.

Key Features

• Bosch Engineered Oxygen Sensor line with OE-focused design and materials
• Narrow-band heated oxygen sensor for downstream exhaust monitoring
• Specific fit with included wiring harness for direct vehicle application
• 4-wire, pin-terminal, female connector configuration
• Threaded 18 mm sensor body with 22 mm hex size
• Metal housing built for high-temperature and vibration exposure
• Part number 13796 for easy lookup and ordering

Product Line Details

The Bosch Engineered Oxygen Sensor line draws on Bosch OE development dating back to the original oxygen sensor designs introduced in the 1970s. Bosch later refined narrow-band planar sensor technology to improve light-off response, lambda accuracy, and closed-loop switching behavior, giving this replacement sensor the same type of engineering focus used in factory applications.

Detailed Description

Bosch 13796 is a downstream oxygen sensor designed to measure exhaust oxygen content and send precise air-fuel-ratio data to the ECU. That signal helps the engine management system maintain stable combustion control and reduce emissions across changing operating conditions. The heated narrow-band design supports faster sensor activation after startup, while the ceramic sensing element and temperature-resistant construction help maintain consistent output in harsh exhaust environments. This part cross-references Mitsubishi MD345773 and MR560365 for the same application.

What It Helps Solve

• Check engine light caused by a failing downstream oxygen sensor
• Erratic fuel control from slow or inaccurate O2 sensor response
• Emissions test failure related to sensor performance
• Rough idle or poor combustion control tied to incorrect exhaust feedback
• Delayed closed-loop operation after startup

Installation Notes and Tips

Install Bosch 13796 in the downstream exhaust location specified for the vehicle. Confirm the connector shape, terminal count, thread size, and harness length before installation. Use proper oxygen sensor service tools and inspect the exhaust bung threads for damage or contamination before threading in the sensor.

Fits 1999-2000 Mitsubishi Galant, downstream with California Emission System; Fits 2000 Mitsubishi Eclipse, downstream with California Emission System; Fits 2001-2003 Mitsubishi Galant, downstream; Fits 2001-2005 Chrysler Sebring, downstream; Fits 2001-2005 Dodge Stratus, downstream; Fits 2001-2005 Mitsubishi Eclipse, downstream.

Quality Assurance

Bosch backs this oxygen sensor with more than five decades of OE development experience in emissions and engine management components. The Bosch 13796 is built to OE-proven standards for signal accuracy, durability, and consistent performance in aftermarket service.